1 |
Terminal inflorescences simple racemes or flowers solitary. |
|
(2) |
+ |
Terminal inflorescences cymose panicles or subracemes, rarely corymbs, or flowers several or solitary. |
|
(24) |
|
|
|
|
2 (1) |
Flowers solitary, rarely in clusters of 2 or 3, terminal or axillary. |
|
(3) |
+ |
Terminal inflorescences simple racemes; leaves palmately compound, 3–5-foliolate, or simple. |
|
(6) |
|
|
|
|
3 (2) |
Leaves compound, 3-foliolate, both surfaces sparsely soft hairy. |
|
(4) |
+ |
Leaves simple, glabrous or adaxially sparsely pubescent and abaxially tomentose. |
|
(5) |
|
|
|
|
4 (3) |
Plants with stalked glands; lateral leaflets suborbicular or ovate; flowers 3–4 cm in diam.; pedicel 3–4 cm; pistils numerous. |
|
179 R. wardii |
+ |
Plants without stalked glands; lateral leaflets ovate or elliptic; flowers 1–1.5 cm in diam.; pedicel ca. 1 cm; pistils not numerous. |
|
180 R. metoensis |
|
|
|
|
5 (3) |
Leaves leathery, both surfaces glabrous, margin subentire or sparsely serrulate, base rounded to subtruncate; petioles 0.5–1 cm; aggregate fruit ovoid-globose, densely thinly gray pubescent. |
|
181 R. jambosoides |
+ |
Leaves not leathery, adaxially sparsely pubescent, abaxially tomentose, margin aristate-serrate, base deeply cordate to subauriculate; petioles 2–2.5 cm; aggregate fruit globose, glabrous at maturity. |
|
182 R. lohfauensis |
|
|
|
|
6 (2) |
Leaves palmately compound, 3–5-foliolate. |
|
(7) |
+ |
Leaves simple. |
|
(8) |
|
|
|
|
7 (6) |
Stipules and bracts palmately parted; leaflets sharply serrate; soft hairs of stamens deciduous in age. |
|
160 R. playfairianus |
+ |
Stipules and bracts usually entire or only apically serrate; leaflets sparsely minute serrate; soft hairs of stamens persistent in age. |
|
161 R. bambusarum |
|
|
|
|
8 (6) |
Leaves deeply divided. |
|
(9) |
+ |
Leaves undivided or lobed. |
|
(10) |
|
|
|
|
9 (8) |
Leaves lobes lanceolate or narrowly oblong, margin sparsely minute sharply serrate; inflorescences and calyx without glandular hairs, or only abaxial surface of calyx with sparse, glandular hairs; aggregate fruit black. |
|
162 R. henryi |
+ |
Leaf lobes elliptic or oblong, margin densely coarsely sharply serrate; inflorescences and calyx with sparse, glandular hairs; aggregate fruit red. |
|
163 R. huangpingensis |
|
|
|
|
10 (8) |
Inflorescences stipitate glandular. |
|
(11) |
+ |
Inflorescences not stipitate glandular. |
|
(17) |
|
|
|
|
11 (10) |
Stipules and bracts palmatipartite nearly to base, late caducous; inflorescences and abaxial surface of calyx villous, with sparse, glandular hairs, without needle-like prickles. |
|
170 R. refractus |
+ |
Stipules and bracts entire or toothed, caducous; inflorescence and calyx with stipitate glands and needle-like prickles. |
|
(12) |
|
|
|
|
12 (11) |
Leaves leathery, undivided, abaxially yellowish brown to rust colored tomentose; inflorescences and calyx with stipitate glands, with intermixed needle-like prickles. |
|
164 R. dunnii |
+ |
Leaves not leathery, undivided or lobed, abaxially gray to rust colored tomentose; inflorescences and calyx with unequal stipitate glands and needle-like prickles. |
|
(13) |
|
|
|
|
13 (12) |
Abaxial surface of leaves rust colored tomentose. |
|
(14) |
+ |
Abaxial surface of leaves gray to yellowish gray tomentose. |
|
(15) |
|
|
|
|
14 (13) |
Leaves lanceolate to elliptic-lanceolate, base rounded to truncate, rarely shallowly cordate, not divided; abaxial surface of calyx tomentose; aggregate fruit dark red. |
|
168 R. gressittii |
+ |
Leaves ovate to ovate-lanceolate, base cordate, lobed or undulate; abaxial surface of calyx tomentose-villous; aggregate fruit black. |
|
169 R. lichuanensis |
|
|
|
|
15 (13) |
Leaves cordate at base, broadly ovate, lobed; inflorescences and abaxial surface of calyx with glandular hairs 2–4 mm, with needle-like prickles. |
|
167 R. hanceanus |
+ |
Leaves rounded or truncate to shallowly cordate at base, undivided; inflorescences and calyx with glandular hairs 1–2 cm, unarmed. |
|
(16) |
|
|
|
|
16 (15) |
Hairs of leaves of fruiting branchlets deciduous in age; sepals ovate or triangular-ovate. |
|
165 R. swinhoei |
+ |
Hairs of leaves of fruiting branchlets persistent in age; sepals lanceolate or triangular- lanceolate. |
|
166 R. doyonensis |
|
|
|
|
17 (10) |
Abaxial surface of leaves glabrous, or slightly hairy only along veins; terminal inflorescences corymbose racemes. |
|
178 R. kawakamii |
+ |
Abaxial surface of leaves tomentose; terminal inflorescences racemes. |
|
(18) |
|
|
|
|
18 (17) |
Leaves not leathery, abaxially gray or yellowish gray tomentose, coarsely sharply serrate. |
|
(19) |
+ |
Leaves leathery, abaxially densely yellowish to rust colored tomentose, minutely shallowly serrate. |
|
(21) |
|
|
|
|
19 (18) |
Aggregate fruit red; pedicel 1.5–3.5 cm; outer sepals apically laciniate, inner sepals entire; leaves basally subtruncate to shallowly cordate; stamens with few hairs only on anthers. |
|
175 R. hemithyrsus |
+ |
Aggregate fruit purplish black; pedicel 0.7–1.5 cm; outer and inner sepals entire; leaves basally subrounded to subtruncate; stamens villous or glabrous. |
|
(20) |
|
|
|
|
20 (19) |
Leaves narrowly obovate or broadly ovate-lanceolate to narrowly lanceolate, base rounded to subtruncate; stamens glabrous or anthers slightly villous; styles ca. as long as or slightly longer then stamens. |
|
176 R. preptanthus |
+ |
Leaves elliptic or oblong-elliptic, base subrounded; stamens villous; styles much longer than stamens. |
|
177 R. malifolius |
|
|
|
|
21 (18) |
Pedicel and abaxial surface of calyx with dense, needle-like prickles; leaves abaxially yellowish brown tomentose. |
|
171 R. fujianensis |
+ |
Pedicel and abaxial surface of calyx unarmed; leaves abaxially rust colored or yellowish tomentose. |
|
(22) |
|
|
|
|
22 (21) |
Aggregate fruit black at maturity; leaves abaxially rust colored tomentellate, lateral veins 5–8 pairs; style villous. |
|
174 R. caudifolius |
+ |
Aggregate fruit red at maturity; leaves abaxially densely yellowish or yellowish brown tomentose, lateral veins 7–11 pairs; styles glabrous or villous. |
|
(23) |
|
|
|
|
23 (22) |
Leaves densely yellowish tomentose abaxially, lateral veins 8–11 pairs; petioles 0.8–1.5 cm; styles and ovary glabrous. |
|
172 R. oblongus |
+ |
Leaves densely yellowish brown tomentose abaxially, lateral veins 7–9 pairs; petioles 1.5–3 cm; styles and apex of ovary hairy. |
|
173 R. liui |
|
|
|
|
24 (1) |
Leaves palmately compound, 3–5-foliolate, rarely simple. |
|
(25) |
+ |
Leaves simple. |
|
(27) |
|
|
|
|
25 (24) |
Leaflets pinnately veined with (20–)30–50 pairs of lateral veins, abaxially densely sericeous; stipules and bracts not lobed. |
|
91 R. lineatus |
+ |
Leaflets reticulately veined, lateral veins few; abaxially tomentose or pilose; stipules and bracts palmately divided or not. |
|
(26) |
|
|
|
|
26 (25) |
Abaxial surface of leaflets tomentose; stipules and bracts 5–10 mm, palmately divided. |
|
92 R. cochinchinensis |
+ |
Abaxial surface of leaflets pilose; stipules and bracts leaflike, 20–35 mm, not divided, serrate. |
|
93 R. foliaceistipulatus |
|
|
|
|
27 (24) |
Stipules and bracts broader, usually 2–5 × 1–2 cm, rarely smaller, divided or serrate. |
|
(28) |
+ |
Stipules and bracts narrower, less than 2 × 1 cm, rarely broader, divided and entire. |
|
(33) |
|
|
|
|
28 (27) |
Leaves abaxially glabrous except soft hairy along veins, lobed; stipules broadly to narrowly ovate, 2–3 cm. |
|
159 R. wangii |
+ |
Leaves abaxially densely tomentose or sericeous-villous, undulate, inconspicuously lobed or lobed; stipules oblong lanceolate, suborbicular, broadly ovate, to oblong, 1.5–5 cm. |
|
(29) |
|
|
|
|
29 (28) |
Leaves abaxially densely sericeous-villous, undulate or 3–5-lobed; flowers solitary or in clusters of 2 or 3. |
|
158 R. crassifolius |
+ |
Leaves abaxially tomentose, with narrow caudate lobes above middle or with broad obtuse or acute lobes; terminal inflorescences narrow cymose panicles or subracemes. |
|
(30) |
|
|
|
|
30 (29) |
Stipules oblong-lanceolate, 2–4(–5) cm; leaves elliptic or ovate-elliptic, rarely suborbicular, with irregular narrow caudate lobes above middle; inflorescences and calyx gray tomentose. |
|
154 R. yiwuanus |
+ |
Stipules broadly ovate or oblong, 1.5–3 cm; leaves suborbicular or broadly ovate to narrowly ovate, with broad obtuse or acute lobes; inflorescences and calyx villous or tomentose. |
|
(31) |
|
|
|
|
31 (30) |
Leaves broadly ovate to narrowly ovate, abaxially gray tomentose, apically acuminate, margin inconspicuously lobed; inflorescences and calyx with soft hairs. |
|
157 R. pacificus |
+ |
Leaves suborbicular or broadly ovate, abaxially with gray, yellowish gray, or yellowish brown hairs, apically acute or obtuse, margin undulate to lobed; inflorescences villous or tomentose. |
|
(32) |
|
|
|
|
32 (31) |
Stipules broadly ovate or broadly oblong, 1.5–2 cm; leaves 5–7-lobed, lobes acute apically; inflorescences and calyx villous. |
|
155 R. stipulosus |
+ |
Stipules oblong, 2–3 cm; leaves undulate or inconspicuously lobed, lobes obtuse apically, rarely acute; inflorescences and calyx tomentose. |
|
156 R. irenaeus |
|
|
|
|
33 (27) |
Leaves abaxially ± soft hairy, rarely glabrous. |
|
(34) |
+ |
Leaves abaxially densely tomentose. |
|
(49) |
|
|
|
|
34 (33) |
Subshrubs, nearly creeping, villous; inflorescences subracemes, several-flowered; leaves cordate at base. |
|
153 R. hypopitys |
+ |
Shrubs climbing or upright, taller; inflorescences cymose panicles or subracemes, many flowered, rarely few flowered; leaves rounded, subtruncate, or cordate at base. |
|
(35) |
|
|
|
|
35 (34) |
Leaves rounded or subtruncate, rarely shallowly cordate at base. |
|
(36) |
+ |
Leaves cordate at base. |
|
(41) |
|
|
|
|
36 (35) |
Plants densely yellow glandular; inflorescences minutely soft hairy; abaxial surface of calyx subglabrous. |
|
138 R. taronensis |
+ |
Plant without glands; inflorescences pubescent or glabrous; abaxial surface of calyx pubescent or glabrous. |
|
(37) |
|
|
|
|
37 (36) |
Leaves basally truncate to subcordate. |
|
(38) |
+ |
Leaves basally rounded. |
|
(39) |
|
|
|
|
38 (37) |
Leaves, inflorescences, and abaxial surface of calyx thinly pubescent; leaves elliptic or oblong, margin coarsely obtusely dentate. |
|
142 R. yunanicus |
+ |
Leaves, inflorescences, and abaxial surface of calyx yellowish sericeous-villous; leaves oblong or ovate-oblong to elliptic, margin minutely sharp-serrate. |
|
143 R. poliophyllus |
|
|
|
|
39 (37) |
Petioles to 1 cm; inflorescences and abaxial surface of calyx pubescent; carpels 5–10(–17). |
|
139 R. pirifolius |
+ |
Petioles (0.7–)1–2 cm; inflorescences and abaxial surface of calyx glabrous or soft hairy; carpels more, usually more than 10, to many. |
|
(40) |
|
|
|
|
40 (39) |
Petioles 1–2 cm; leaves ovate-oblong or lanceolate, margin sparsely minute sharply serrate; inflorescences and abaxial surface of calyx glabrous. |
|
140 R. acuminatus |
+ |
Petioles 0.7–1 cm; leaves oblong-lanceolate, margin coarsely sharply serrate; inflorescences and abaxial surface of calyx soft hairy. |
|
141 R. brevipetiolatus |
|
|
|
|
41 (35) |
Terminal inflorescences large lax cymose panicles. |
|
(42) |
+ |
Terminal inflorescences narrow cymose panicles or subracemes. |
|
(44) |
|
|
|
|
42 (41) |
Plants glandular; leaves broadly ovate or narrowly obovate; sepals undivided; petals soft hairy on both surfaces. |
|
144 R. forrestianus |
+ |
Plants not glandular; leaves narrowly to broadly ovate; sepals undivided or pinnately laciniate; petals slightly pubescent or glabrous. |
|
(43) |
|
|
|
|
43 (42) |
Leaves narrowly ovate; pedicel 1–2 cm; sepals ovate or ovate-triangular, outer sepals pinnately laciniate; petals slightly pubescent. |
|
145 R. laxus |
+ |
Leaves broadly ovate, rarely oblong-ovate; pedicel 0.5–1 cm; sepals ovate-lanceolate or triangular-lanceolate, undivided; petals glabrous. |
|
146 R. lambertianus |
|
|
|
|
44 (41) |
Abaxial surface of calyx with needle-like prickles. |
|
(45) |
+ |
Abaxial surface of calyx without needle-like prickles. |
|
(46) |
|
|
|
|
45 (44) |
Leaves 6–9 × 5–7 cm; pedicel less than 1 cm; sepals broadly ovate, outer sepals pinnately divided; aggregate fruit 1–1.2 cm in diam. |
|
147 R. calycacanthus |
+ |
Leaves 10–17 × 15–20 cm; pedicel 1.5–2.5 cm; sepals lanceolate or ovate-lanceolate, outer sepals apically 2- or 3-laciniate; aggregate fruit 1.4–1.8 cm in diam. |
|
148 R. gongshanensis |
|
|
|
|
46 (44) |
Plants usually without stalked glands, villous; leaves oblong to ovate-oblong; stipules 6–9 mm, deeply divided. |
|
152 R. howii |
+ |
Plants usually with stalked glands, soft hairy or glabrous; leaves lanceolate to ovate or broadly oblong. |
|
(47) |
|
|
|
|
47 (46) |
Plants with stalked glands, soft hairs, and bristles; leaves narrowly ovate or broadly oblong; petiole 2–3 cm; stipules deeply pinnate-laciniate. |
|
149 R. menglaensis |
+ |
Plants soft hairy or glabrous, with sparse, stalked glands; leaves lanceolate, ovate-l anceolate or oblong-lanceolate; petiole 1–4 cm; stipules subulate or linear-lanceolate to oblong-lanceolate, margin entire and palmatifid. |
|
(48) |
|
|
|
|
48 (47) |
Leaves ovate-lanceolate, base deeply cordate, basal incision broad; stipules subulate or linear-lanceolate, margin entire. |
|
150 R. ichangensis |
+ |
Leaves lanceolate or oblong-lanceolate, base cordate-auriculate, basal incision narrow; stipules oblong-lanceolate or ovate-lanceolate, palmatifid. |
|
151 R. latoauriculatus |
|
|
|
|
49 (33) |
Leaves narrow, ovate-oblong or ovate-lanceolate to lanceolate, not divided, rarely lobed basally, pinnately veined; petioles 0.5–2(–4) cm. |
|
(50) |
+ |
Leaves broad, suborbicular, broadly ovate, or elliptic to oblong, not divided or lobed, palmately 5-veined from base; petioles more than 2 cm, rarely shorter. |
|
(55) |
|
|
|
|
50 (49) |
Leaves basally rounded to shallowly cordate; petioles 0.5–1.5 cm; plants with or without stalked glands. |
|
(51) |
+ |
Leaves basally deeply cordate; petioles 0.5–3.5 cm; plants with stalked glands. |
|
(53) |
|
|
|
|
51 (50) |
Plants without stalked glands; petioles 1–1.5 cm; leaves oblong-lanceolate, abaxially densely yellow or grayish yellow tomentose. |
|
96 R. xichouensis |
+ |
Plants wholly or partly with stalked glands; petioles 0.5–0.8 cm; leaves lanceolate or oblong, abaxially densely gray tomentose. |
|
(52) |
|
|
|
|
52 (51) |
Stipules and bracts palmately divided above middle; leaves subleathery, lanceolate; branchlets, petioles, and inflorescences glabrous, stalked glands not present; abaxial surface of calyx tomentose, with stalked glands. |
|
94 R. dolichophyllus |
+ |
Stipules and bracts deeply divided to below middle or to base; leaves papery, lanceolate or oblong; branchlets, petioles, inflorescences, and abaxial surface of calyx yellowish villous, with sparse, glandular hairs. |
|
95 R. raopingensis |
|
|
|
|
53 (50) |
Stipules and bracts linear or lanceolate, entire; terminal inflorescences narrow cymose panicles or short subracemes; petioles 1–1.5 cm. |
|
99 R. angustibracteatus |
+ |
Stipules and bracts palmate-laciniate; terminal inflorescences broad cymose panicles; petioles 0.5–3.5 cm. |
|
(54) |
|
|
|
|
54 (53) |
Adaxial surface of leaves appressed villous, basal incision shallow, broad, 2 basal short lobes not touching; petioles often 0.5–1 cm, rarely longer; sepals 0.5–1 cm, shortly acuminate. |
|
97 R. parkeri |
+ |
Adaxial surface of leaves hairy only along veins, basal incision narrow, to 2 cm deep, 2 basal long lobes touching; petioles 2–3.5 cm; sepals 1–1.5 cm, apex subulate or long caudate. |
|
98 R. panduratus |
|
|
|
|
55 (49) |
Leaves abaxially densely rusty yellow or rust colored, rarely rufous tomentose; terminal inflorescences short subracemes, rarely cymose panicles, with few flowers. |
|
(56) |
+ |
Leaves abaxially densely gray or yellowish gray tomentose. |
|
(62) |
|
|
|
|
56 (55) |
Leaf base cuneate to rounded, undivided. |
|
(57) |
+ |
Leaf base cordate, divided, or undivided. |
|
(58) |
|
|
|
|
57 (56) |
Leaves narrowly ovate, rarely elliptic, with 8–10 pairs of lateral veins; terminal inflorescences lax cymose panicles, many flowered. |
|
131 R. penduliflorus |
+ |
Leaves ovate, with 4 or 5 pairs of lateral veins; terminal inflorescences short subracemes, few flowered. |
|
132 R. malipoensis |
|
|
|
|
58 (56) |
Leaves not divided or 2-lobed basally. |
|
(59) |
+ |
Leaves divided or undulate. |
|
(60) |
|
|
|
|
59 (58) |
Leaves ovate or narrowly ovate, undivided or somewhat undulate; stipules and bracts only apically palmately lobed; anthers and styles glabrous. |
|
136 R. flagelliflorus |
+ |
Leaves oblong-lanceolate or ovate-lanceolate, usually with 2 distinct lobes near base; stipules and bracts palmately parted basally; anthers and styles sericeous-villous. |
|
137 R. hastifolius |
|
|
|
|
60 (58) |
Leaves narrowly ovate, 3–5(–7)-lobed; stipules and bracts broadly obovate, 1–1.4 × 0.9–1.3 cm, pectinately or palmately divided; terminal inflorescences short subracemes, densely rust colored villous; abaxial surface of calyx rust colored villous, tomentose. |
|
135 R. reflexus |
+ |
Leaves ovate to suborbicular, lobed or undulate; stipules oblong, oblong-lanceolate to ovate-lanceolate, pinnate-laciniate or only apically palmately lobed; terminal inflorescence compact panicle or short subraceme; abaxial surface of calyx densely rust colored sericeous or yellow sericeous-villous or tomentose. |
|
(61) |
|
|
|
|
61 (60) |
Leaves 12–20 × 8–16 cm; stipules oblong-lanceolate, to 1.5 cm, pinnate-laciniate; terminal panicles compact, many flowered; calyx densely rust colored tomentose. |
|
133 R. fuscifolius |
+ |
Leaves 8–11 × 5–9 cm; stipules oblong or ovate-lanceolate, less than 1 cm, only apically palmately lobed; terminal inflorescences short subracemes, few flowered; abaxial surface of calyx yellow sericeous-villous, margin of sepals tomentose. |
|
134 R. shihae |
|
|
|
|
62 (55) |
Leaves ovate, narrowly ovate, or ovate-lanceolate to oblong, rarely broadly ovate or suborbicular, undivided or lobed, apically acuminate, rarely acute or obtuse; terminal inflorescences large broad cymose panicles, to 27 cm, rarely racemose. |
|
(63) |
+ |
Leaves suborbicular, broadly ovate to broadly oblong, lobed, apically obtuse or acute, rarely acuminate; terminal inflorescences always narrow cymose panicles or racemose, less than 17 cm. |
|
(77) |
|
|
|
|
63 (62) |
Plants with glandular hairs or bristles. |
|
(64) |
+ |
Plants without glandular hairs, rarely pedicel and abaxial surface of calyx with stalked glands. |
|
(67) |
|
|
|
|
64 (63) |
Plants tomentose, bristly; leaves suborbicular, abaxially densely gray tomentose; fruit purplish black. |
|
103 R. tephrodes |
+ |
Plants pubescent, not bristly; leaves ovate or orbicular-ovate to narrowly ovate; fruit red, purplish red or purplish black. |
|
(65) |
|
|
|
|
65 (64) |
Leaves subleathery, broadly ovate or orbicular-ovate, abaxially yellowish tomentose; plants with stipitate glands ca. 1 mm; abaxial surface of calyx tomentose. |
|
102 R. luchunensis |
+ |
Leaves not leathery, narrowly to broadly ovate or orbicular-ovate, abaxially gray tomentose; plants with stipitate glands 2–3 mm; abaxial surface of calyx villous. |
|
(66) |
|
|
|
|
66 (65) |
Leaves ovate to narrowly ovate, apically obtuse to acute, margin undulate-lobed, lobes obtuse; sepals undivided. |
|
100 R. feddei |
+ |
Leaves broadly ovate or orbicular-ovate, apically acuminate, margin divided, lobes acute; sepals laciniate. |
|
101 R. salwinensis |
|
|
|
|
67 (63) |
Leaves distinctly lobed, base cordate; petioles 3–7 cm. |
|
104 R. lobophyllus |
+ |
Leaves undivided, sometimes lobed, base rounded or cordate; petioles; petioles 0.5–10 cm. |
|
(68) |
|
|
|
|
68 (67) |
Leaves basally rounded, rarely subtruncate, oblong, ovate-oblong, or elliptic; petioles 0.5–1 cm. |
|
105 R. assamensis |
+ |
Leaves basally truncate to cordate, rarely suborbicular; petioles usually more than 2 cm. |
|
(69) |
|
|
|
|
69 (68) |
Leaves basally truncate, broadly triangular-ovate. |
|
106 R. tinifolius |
+ |
Leaves basally cordate, rarely subrounded, suborbicular, broadly ovate. |
|
(70) |
|
|
|
|
70 (69) |
Inflorescences and abaxial surface of calyx sericeous-villous. |
|
(71) |
+ |
Inflorescences and abaxial surface of calyx tomentose or tomentose-villous. |
|
(74) |
|
|
|
|
71 (70) |
Leaves suborbicular or broadly ovate. |
|
(72) |
+ |
Leaves narrowly ovate or ovate-lanceolate. |
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(73) |
|
|
|
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72 (71) |
Leaves thickly papery, base cordate, margin sharply serrate; terminal cymose panicles large, broad; flowers apetalous. |
|
107 R. chroosepalus |
+ |
Leaves leathery, base truncate to shallowly cordate, margin shallowly obtusely serrate; terminal cymose panicles small, narrow; flowers petalous. |
|
108 R. mallotifolius |
|
|
|
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73 (71) |
Shrubs deciduous; leaves 7–10 cm, lobed; petioles 2–4 cm, sparsely villous; pedicel and abaxial surface of calyx with sparse, minute stalked glands. |
|
109 R. fuscorubens |
+ |
Shrubs evergreen; leaves 11–22 cm, not divided or shallowly undulate; petioles 5–10 cm, glabrous; pedicel and abaxial surface of calyx without stalked glands. |
|
110 R. jianensis |
|
|
|
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74 (70) |
Leaf base rounded to shallowly cordate; flowers 6–8 mm in diam.; abaxial surface of calyx tomentose; flowers petalous or apetalous. |
|
(75) |
+ |
Leaf base cordate; flowers 8–18 mm in diam.; abaxial surface of calyx tomentose and villous; flowers petalous. |
|
(76) |
|
|
|
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75 (74) |
Leaves broadly ovate, rarely ovate-oblong, undivided; petioles glabrous; abaxial surface of calyx gray tomentose; flowers apetalous; aggregate fruit black. |
|
111 R. cinclidodictyus |
+ |
Leaves narrowly ovate to ovate-lanceolate, lobed; petioles tomentose; abaxial surface of calyx tomentose, gray tomentose on sepal margin; flowers petalous; aggregate fruit dark red. |
|
112 R. xanthoneurus |
|
|
|
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76 (74) |
Leaves ovate to narrowly ovate, apically acuminate; petioles 2–4 cm; flowers to 18 mm in diam.; terminal cymose panicles broad, lax. |
|
113 R. paniculatus |
+ |
Leaves broadly ovate to suborbicular, rarely narrowly ovate, apically acute; petioles 1–2.5 cm; flowers 8–10 mm in diam.; terminal cymose panicles short, compact. |
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114 R. neoviburnifolius |
|
|
|
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77 (62) |
Stipules and bracts pinnately or palmately parted or irregularly lacerate nearly to base. |
|
(78) |
+ |
Stipules and bracts palmately or pinnately lobed, rarely parted. |
|
(83) |
|
|
|
|
78 (77) |
Plants with dense, large stipitate glands; leaves suborbicular or broadly ovate, 4–6 cm; petioles 1–2 cm; sepals triangular-ovate, not divided. |
|
115 R. nagasawanus |
+ |
Plants without stipitate glands; leaves suborbicular to broadly ovate, 6–16 cm; petioles (2–)3–5(–8) cm; sepals apically 2- or 3-laciniate, with 3 bristles at apex or palmately to pinnately laciniate. |
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(79) |
|
|
|
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79 (78) |
Leaves broadly ovate, undivided or slightly undulate, abaxially hairs deciduous at maturity; terminal inflorescences narrow panicles or racemose; sepals lanceolate, outer sepals apically 2- or 3-laciniate. |
|
120 R. chrysobotrys |
+ |
Leaves suborbicular or broadly ovate, distinctly 3–7-divided, abaxially persistently tomentose; terminal inflorescences short subracemes or cymose panicles; outer sepals entire with 3 bristles only at apex or palmately to pinnately laciniate. |
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(80) |
|
|
|
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80 (79) |
Terminal inflorescences short subracemes, 3–6-flowered; sepals long obovate, outer sepals entire, with 3 bristles only at apex; adaxial surface of leaves not distinctly bullate between veins. |
|
119 R. yuliensis |
+ |
Terminal cymose panicles or subracemes, many flowered; sepals broadly ovate or triangular-ovate, outer sepals palmately to pinnately laciniate; adaxial surface of leaves prominently bullate or not. |
|
(81) |
|
|
|
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81 (80) |
Adaxial surface of leaves prominently bullate between veins; terminal inflorescences narrow cymose panicles or subracemes. |
|
116 R. alceifolius |
+ |
Adaxial surface of leaves not prominently bullate between veins; terminal inflorescences broad cymose panicles. |
|
(82) |
|
|
|
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82 (81) |
Branchlets, petioles, and inflorescences yellowish villous; pedicel 5–8 cm; petals and ovary pubescent. |
|
117 R. platysepalus |
+ |
Branchlets, petioles, and inflorescences grayish tomentose; pedicel 0.8–2 cm; petals pubescent; ovary glabrous. |
|
118 R. arachnoideus |
|
|
|
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83 (77) |
Plants with brownish bristles; leaves suborbicular, apically acute to caudate. |
|
(84) |
+ |
Plants without bristles; leaves suborbicular or broadly ovate, truncate, apically obtuse or acute. |
|
(85) |
|
|
|
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84 (83) |
Stipules and bracts 1.5–2 × 1.2–1.5 cm, parted, late caducous; flowers ca. 1 cm in diam.; sepals broadly ovate or ovate-lanceolate, apically caudate. |
|
121 R. rufus |
+ |
Stipules and bracts 1–1.2 × 0.7–1 cm, lobed, caducous; flowers 1.2–1.7 cm in diam.; sepals lanceolate or ovate-lanceolate, apically acute to shortly acuminate. |
|
122 R. lasiotrichos |
|
|
|
|
85 (83) |
Shrubs low, climbing or prostrate; leaves abaxially glabrescent. |
|
(86) |
+ |
Shrubs larger, climbing; leaves abaxially persistently tomentose. |
|
(87) |
|
|
|
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86 (85) |
Branchlets, petioles, and inflorescences thinly pubescent; leaf lobes acute; abaxial surface of calyx gray to yellowish gray pubescent, intermixed tomentose; sepals broadly ovate, outer sepals pinnate-laciniate on margin. |
|
129 R. hunanensis |
+ |
Branchlets, petioles, and inflorescences tomentose-villous; leaf lobes often obtuse; abaxial surface of calyx densely yellowish villous, intermixed tomentose; sepals lanceolate or ovate-lanceolate, outer sepals only apically lobed. |
|
130 R. buergeri |
|
|
|
|
87 (85) |
Terminal inflorescences short subracemes, few flowered; stipules and bracts broadly flabellate or broadly ovate to broadly oblong, 1–1.5(–2) × (0.6–)1–1.5 cm, pinnately or palmately parted to base. |
|
(88) |
+ |
Terminal inflorescences narrow cymose panicles or subracemes, many flowered; stipules and bracts subflabellate, obovate or ovate to ovate-lanceolate, 0.7–1.8 cm, pectinately to palmately divided or laciniate. |
|
(89) |
|
|
|
|
88 (87) |
Leaves 3–5-lobed, lobes acute, rarely obtuse; stipules and bracts broadly ovate to broadly oblong; pedicel 3–4 mm; sepals triangular to ovate, outer sepals entire or only apically lobed. |
|
127 R. formosensis |
+ |
Leaves 5–7-lobed, lobes obtuse or acute; stipules and bracts broadly flabellate; pedicel 7–10(–15) mm; sepals narrowly ovate or ovate-lanceolate, outer sepals pinnately parted. |
|
128 R. pinnatisepalus |
|
|
|
|
89 (87) |
Stipules and bracts subflabellate, broadly elliptic, or broadly obovate, 1–1.8 cm and ca. as broad, pectinately to palmately divided. |
|
(90) |
+ |
Stipules and bracts ovate or ovate-lanceolate, rarely narrowly obovate, 0.7–1.1 cm and nearly as broad, apex palmate-laciniate. |
|
(90) |
|
|
|
|
90 (89) |
Leaves palmately 7–9-lobed, terminal lobe obtuse or subtruncate, rarely acute; lobes of stipules usually undivided; pedicel 1–1.5 cm; flowers white, 1.5–2.5 cm in diam. |
|
123 R. pluribracteatus |
+ |
Leaves usually 5-lobed, terminal lobe acute; lobes of stipules divided again; pedicel 1.5–3(–4) cm; flowers yellowish white or white, 1–1.5 cm in diam. |
|
124 R. reticulatus |
|
|
|
|
91 |
Leaves 5–7-lobed, lobes obtuse, rarely acute, sepals ovate-lanceolate, apically caudate; flowers purplish red; aggregate fruit black. |
|
125 R. setchuenensis |
+ |
Leaves 7–11-lobed, lobes acute; sepals broadly ovate, apically acute; flowers white; aggregate fruit red. |
|
126 R. faberi |
|