1 |
Fruit not spotted with lenticels |
|
(2) |
+ |
Fruit spotted with lenticels |
|
(8) |
|
|
|
|
2 (1) |
Pith solid, white; flowers white; sepals 2-5; petals 5-12 |
|
(3) |
+ |
Pith lamellate, white or brown; flowers greenish, white, or red; sepals 4-6; petals 5 |
|
(5) |
|
|
|
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3 (2) |
Sepals (4 or)5; petals 5; leaves adaxially sparsely strigillose. |
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5 A. polygama |
+ |
Sepals 2 or 3; petals 5-12; leaves adaxially not strigillose |
|
(4) |
|
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|
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4 (3) |
Fruit ovoid to obovoid, rostrum on apex ± conspicuous; seeds ca. 3 mm, ca. 2.5 mm in diam.; sepals (2 or)3; petals 5-9; anthers oblong to linear, 2.5-4 mm. |
|
6 A. valvata |
+ |
Fruit globose, rostrum on apex inconspicuous; seeds 4-5 mm, ca. 3 mm in diam.; sepals 2 or 3; petals 5-12; anthers ovoid, 1.5-2.5 mm. |
|
7 A. macrosperma |
|
|
|
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5 (2) |
Ovary bottle-shaped; flowers white or greenish; apex of fruit rostrate; pith white to brown; leaves abaxially glaucous or not |
|
(6) |
+ |
Ovary cylindric; flowers white to pink; apex of fruit not rostrate; pith brown; leaves abaxially not glaucous |
|
(7) |
|
|
|
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6 (5) |
Leaf blade abaxially usually not glaucous, ovate to broadly ovate or orbicular, sometimes ovate-oblong, membranous to papery. |
|
1 A. arguta |
+ |
Leaf blade abaxially usually glaucous, ovate-lanceolate, ovate-oblong, oblong, or ovate, occasionally orbicular, papery to leathery. |
|
2 A. melanandra |
|
|
|
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7 (5) |
Flowers pink or white, 5(or 6)-merous; leaves abaxially with ± conspicuous tufts of white hairs in axils of lateral veins. |
|
3 A. kolomikta |
+ |
Flowers white, 4-merous, rarely 5-merous; leaves abaxially with very conspicuous white tufts of hairs in axils of lateral veins. |
|
4 A. tetramera |
|
|
|
|
8 (1) |
Leaves normally abaxially glabrous or occasionally hairy, but hairs not stellate or imperfectly stellate |
|
(9) |
+ |
Leaves abaxially ± tomentose, hairs stellate or imperfectly stellate |
|
(30) |
|
|
|
|
9 (8) |
Branches and petioles pubescent, hairs usually rigid and long |
|
(10) |
+ |
Branches and petioles usually glabrous, if hairy, then hairs fine and soft, occasionally strigose on branchlets and petioles in A. fortunatii and A. callosa |
|
(17) |
|
|
|
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10 (9) |
Ovary setose; sepals abaxially hispidulous. |
|
22 A. holotricha |
+ |
Ovary and sepals tomentose (sepals occasionally glabrous) |
|
(11) |
|
|
|
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11 (10) |
Leaf margin irregularly setose-serrulate (usually with 2 short teeth in between 2 long ones). |
|
23 A. rubus |
+ |
Leaf margin regularly serrulate to serrate |
|
(12) |
|
|
|
|
12 (11) |
Leaf blade orbicular-obovate, apex truncate and emarginate or rounded and cuspidate. |
|
24 A. chengkouensis |
+ |
Leaf blade oblong-lanceolate, ovate, or oblong-elliptic to oblong-obovate, apex acute to acuminate |
|
(13) |
|
|
|
|
13 (12) |
Fruit oblong to globose, more than 1.5 cm in diam |
|
(14) |
+ |
Fruit cylindric, less than 1 cm in diam |
|
(15) |
|
|
|
|
14 (13) |
Leaf blade oblong-lanceolate to -ovate, abaxially glaucous. |
|
28 A. hemsleyana |
+ |
Leaf blade oblong-ovate to broadly ovate, abaxially not glaucous. |
|
29 A. vitifolia |
|
|
|
|
15 (13) |
Leaves ferruginous hispid, abaxially prominently glaucous. |
|
25 A. melliana |
+ |
Leaves strigose or puberulent, abaxially not or slightly glaucous |
|
(16) |
|
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16 (15) |
Both surfaces of leaves usually densely strigose, occasionally so on midvein and lateral veins to rarely glabrous, abaxially not glaucous; branchlets strigose, hairs basally not dilated. |
|
26 A. rudis |
+ |
Both surfaces of leaves often glabrous or slightly puberulent, adaxially occasionally sparsely strigose, abaxially glaucous or not; branchlets hispid-strigose, hairs basally obviously dilated. |
|
27 A. henryi |
|
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17 (9) |
Pith solid |
|
(18) |
+ |
Pith lamellate |
|
(20) |
|
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18 (17) |
Flowers 2-6, in subsessile, axillary clusters. |
|
8 A. fasciculoides |
+ |
Flowers solitary or in pedunculate clusters; peduncles or pedicels 1-2 cm |
|
(19) |
|
|
|
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19 (18) |
Inflorescences umbellate, usually 3-5-flowered. |
|
9 A. umbelloides |
+ |
Inflorescences cymose, usually 1-flowered. |
|
10 A. rubricaulis |
|
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20 (17) |
Leaves abaxially not glaucous |
|
(21) |
+ |
Leaves abaxially glaucous |
|
(24) |
|
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21 (20) |
Branchlets tomentose; inflorescence usually 3-9- or more flowered. |
|
11 A. rufa |
+ |
Branchlets rarely tomentose; inflorescence usually 1-3-flowered |
|
(22) |
|
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22 (21) |
Leaf margin inconspicuously mucronulate on current year leaves or shallowly crenate-serrate on two-year leaves; pith white to brown. |
|
14 A. cylindrica |
+ |
Leaf margin ciliate-serrulate to coarsely serrate; pith brown |
|
(23) |
|
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23 (22) |
Lenticels sparse, inconspicuous on branches; leaves with strongly raised parallel cross-bars on veinlets; flowers reddish. |
|
12 A. ulmifolia |
+ |
Lenticels dense, conspicuous on branches; leaves with slightly raised parallel cross-bars on veinlets; flowers white. |
|
13 A. callosa |
|
|
|
|
24 (20) |
Branchlets with very conspicuous lenticels; leaves leathery to thickly leathery. |
|
15 A. laevissima |
+ |
Branchlets with inconspicuous to conspicuous lenticels; leaves papery to leathery |
|
(25) |
|
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25 (24) |
Pith white; flowers red; leaves basally distinctly cordatulate to auriculate- cordate. |
|
16 A. fortunatii |
+ |
Pith brown; flowers white or yellow; leaves basally cuneate to truncate or rounded, occasionally cordatulate |
|
(26) |
|
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26 (25) |
Young branchlets, young leaves abaxially on midvein and lateral veins, and inflorescences rusty glandular-tomentose |
|
(27) |
+ |
Young branchlets, young leaves abaxially on midvein and lateral veins, and inflorescences not rusty glandular-tomentose |
|
(28) |
|
|
|
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27 (26) |
Flowers yellow; leaf margin crenate-serrate; sepals on fruit persistent, reflexed. |
|
17 A. chrysantha |
+ |
Flowers white; leaf margin subentire to inconspicuously and remotely crenate-serrulate or serrulate toward apex; sepals not persistent on fruit. |
|
18 A. indochinensis |
|
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28 (26) |
Leaves on flowering branchlets apically rounded. |
|
21 A. sabiifolia |
+ |
Leaves on flowering branchlets never apically rounded |
|
(29) |
|
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29 (28) |
Leaf blade often narrowly ovate, base rounded, petiole 1.5-2.5 cm. |
|
19 A. glaucocallosa |
+ |
Leaf blade often oblong-ovate, base truncate, petiole 2.5-5 cm. |
|
20 A. trichogyna |
|
|
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|
30 (8) |
Abaxial surface of leaves imperfectly stellate pubescent |
|
(31) |
+ |
Abaxial surface of leaves perfectly stellate pubescent |
|
(35) |
|
|
|
|
31 (30) |
Leaves minutely imperfectly stellate- or arachnoid pubescent |
|
(32) |
+ |
Leaves imperfectly long stellate, easily visible |
|
(33) |
|
|
|
|
32 (31) |
Abaxial surface of leaves with minute hairs, and ± conspicuous parallel cross-bars on veinlets. |
|
47 A. stellatopilosa |
+ |
Abaxial surface of leaves with arachnoid hairs, and very prominent parallel cross-bars on veinlets. |
|
48 A. venosa |
|
|
|
|
33 (31) |
Petals 5, 1-1.1 cm; pith white or brownish. |
|
46 A. pilosula |
+ |
Petals 5 or 6, 1-1.6 cm; pith brown |
|
(34) |
|
|
|
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34 (33) |
Inflorescence 3-7-flowered; flowers pink or rosy; leaf blade ovate-lanceolate. |
|
44 A. zhejiangensis |
+ |
Inflorescence 1-3-flowered; flowers yellow; leaf blade obovate. |
|
45 A. grandiflora |
|
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|
35 (30) |
Leaves usually with sparse, easily caducous, stellate hairs, hairs nearly fallen at fruiting |
|
(36) |
+ |
Leaves usually with ± dense persistent stellate hairs |
|
(44) |
|
|
|
|
36 (35) |
Inflorescences 3- or 4-branched, 10- or more flowered. |
|
32 A. latifolia |
+ |
Inflorescences 1- or 2-branched, 1-7-flowered |
|
(37) |
|
|
|
|
37 (36) |
Fruit glabrous when mature |
|
(38) |
+ |
Fruit tomentose when mature |
|
(41) |
|
|
|
|
38 (37) |
Sepals 3-6, margin tomentose; petals 5 or 6, 7-9 mm. |
|
40 A. hubeiensis |
+ |
Sepals 4-6, both surfaces tomentose; petals 5-8, 9-20 mm |
|
(39) |
|
|
|
|
39 (38) |
Petals 7 or 8; sepals 5 or 6; leaves leathery. |
|
41 A. sorbifolia |
+ |
Petals 5 or 6; sepals 4 or 5; leaves papery |
|
(40) |
|
|
|
|
40 (39) |
Leaf blade obovate to obtriangular-obovate, apex abruptly acute to truncate |
|
42 A. obovata |
+ |
Leaf blade broadly ovate or broadly obovate to obovate, apex acute to abruptly acuminate to cuspidate. |
|
43 A. lijiangensis |
|
|
|
|
41 (37) |
Fruit sparsely tomentose when mature; leaves oblong-ovate to broadly ovate when mature |
|
(42) |
+ |
Fruit densely tomentose when mature; leaves broadly ovate to orbicular when mature |
|
(43) |
|
|
|
|
42 (41) |
Leaves abaxially glaucous near margins, reticulate veins not prominent. |
|
49 A. persicina |
+ |
Leaves abaxially not glaucous, reticulate veins prominent. |
|
50 A. rongshuiensis |
|
|
|
|
43 (41) |
Fruit uniformly oblong, 2-4 cm. |
|
51 A. longicarpa |
+ |
Fruit ovoid to oblong, ca. 1.7 cm. |
|
52 A. linguiensis |
|
|
|
|
44 (35) |
Both surfaces of leaves usually hairy, adaxially at least setose or strigose on midvein and lateral veins |
|
(45) |
+ |
Leaves abaxially hairy, adaxially glabrous or hairy when young, but glabrescent when mature |
|
(51) |
|
|
|
|
45 (44) |
Peduncles subsessile; flowers in nearly fasciculate clusters; tomentum on leaves thickly cottony or not |
|
(46) |
+ |
Peduncles easily visible; flowers in cymose clusters; tomentum on leaves not cottony |
|
(47) |
|
|
|
|
46 (45) |
Branchlets and petioles thickly lanate-pubescent. |
|
30 A. farinosa |
+ |
Branchlets and petioles setose-pubescent. |
|
31 A. rufotricha |
|
|
|
|
47 (45) |
Inflorescences 3- or 4-branched, 10- or more flowered. |
|
32 A. latifolia |
+ |
Inflorescences 1- or 2-branched, 1-7-flowered |
|
(48) |
|
|
|
|
48 (47) |
Leaves abaxially sparsely tomentose; branchlets and petioles brownish velutinous |
|
33 A. fulvicoma |
+ |
Leaves abaxially tomentose; branchlets and petioles densely tomentose or hirsute, occasionally velutinous |
|
(49) |
|
|
|
|
49 (48) |
Branchlets and petioles tomentose. |
|
33 A. fulvicoma |
+ |
Branchlets and petioles hirsute or hispid-setose |
|
(50) |
|
|
|
|
50 (49) |
Adaxial surface of leaves densely softly setose, branchlets and petioles hirsute. |
|
33 A. fulvicoma |
+ |
Adaxial surface of leaves densely scabrid-hispid, branchlets and petioles hispid-setose. |
|
34 A. chinensis |
|
|
|
|
51 (44) |
Inflorescence 1-branched, 1-3-flowered; leaves abaxially long stellate, easily observed |
|
(52) |
+ |
Inflorescence 2-4-branched or racemiform, 5-10- or more flowered; leaves abaxially shortly stellate, not easily observed |
|
(54) |
|
|
|
|
52 (51) |
Branchlets, buds, abaxial leaf surface, petioles, inflorescence, sepals, and fruit always with white indumentum. |
|
38 A. eriantha |
+ |
Branchlets and entire plant with yellowish brown or ferruginous indumentum, at least hairs on sepals and fruit yellowish brown |
|
(53) |
|
|
|
|
53 (52) |
Leaf blade ovate, base cordate, lateral veins arcuate, often not furcate; fruit cylindric, to 1 cm in diam. |
|
39 A. liangguangensis |
+ |
Leaf blade obovate, base truncate or obtuse, lateral veins spreading, often furcate on upper part; fruit cylindric-globose or obovate. |
|
34 A. chinensis |
|
|
|
|
54 (51) |
Male inflorescences racemiform, 14-20 cm; female inflorescences 1- or 2-branched, ca. 5 cm; pedicels stout. |
|
35 A. suberifolia |
+ |
Both male and female inflorescences cymose, 2-4-branched, at most 6-7 cm; pedicels slender |
|
(55) |
|
|
|
|
55 (54) |
Peduncle 2.5-8.5 cm, inflorescence 10- or more flowered; leaf blade basally obtuse to rounded or cordatulate, more than 5 cm wide, petiole more than 3 cm. |
|
32 A. latifolia |
+ |
Peduncle to 1.5 cm, inflorescence 5-7-flowered; leaf blade basally cuneate to obtuse, 2-4.5 cm wide, petiole 1-2 cm |
|
(56) |
|
|
|
|
56 (55) |
Pith white; leaf blade 4.5-5 cm wide, apex shortly acuminate, abaxially whitish tomentose with stellate hairs; branchlets, petioles, and inflorescences brownish velutinous. |
|
36 A. styracifolia |
+ |
Pith brown; leaf blade 2-3 cm wide, apex shortly acuminate to acuminate, abaxially grayish tomentose with stellate hairs; branchlets, petioles, and inflorescences ferruginous velutinous. |
|
37 A. lanceolata |