| 1 |
Corolla throat with a projecting tuft of hairs. |
|
(2) |
| + |
Corolla throat without a projecting tuft of hairs. |
|
(6) |
| |
|
|
|
| 2 (1) |
Leaves scabrous, with short hairs or glands. |
|
(3) |
| + |
Leaves glabrous and smooth. |
|
(4) |
| |
|
|
|
| 3 (2) |
Bracts ovate to linear-lanceolate; corolla tube pubescent outside |
|
255 Primula primulina |
| + |
Bracts broadly ovate; corolla tube glabrous outside |
|
256 Primula occlusa |
| |
|
|
|
| 4 (2) |
Corolla throat with a purple tuft of hairs |
|
257 Primula barbatula |
| + |
Corolla throat with a white tuft of hairs. |
|
(5) |
| |
|
|
|
| 5 (4) |
Plants yellow farinose or efarinose; stolons very short or absent |
|
258 Primula bella |
| + |
Plants white farinose; stolons flagellate |
|
259 Primula moschophora |
| |
|
|
|
| 6 (1) |
Plants completely efarinose; leaves entire except sometimes remotely dentate in P. dickieana, or bracts auriculate at base. |
|
(7) |
| + |
Plants conspicuously farinose or leaves distinctly dentate or lobed. |
|
(15) |
| |
|
|
|
| 7 (6) |
Leaf blade linear to subulate, ca. 1 mm wide, sessile or nearly so |
|
243 Primula subularia |
| + |
Leaf blade not linear, more than 1 mm wide, petiolate. |
|
(8) |
| |
|
|
|
| 8 (7) |
Bracts much shorter than calyx. |
|
(9) |
| + |
Bracts at least as long as calyx. |
|
(12) |
| |
|
|
|
| 9 (8) |
Plants 1-3 cm high; scapes shorter than leaf rosette; corolla 4-7 mm in diam. |
|
(10) |
| + |
Plants usually more than 4 cm high; scapes longer than leaf rosette; corolla 20-25 mm in diam. |
|
(11) |
| |
|
|
|
| 10 (9) |
Leaf blade spatulate to oblanceolate, 5-12 × 1-2 mm; calyx 2-2.5 mm, not veined |
|
244 Primula praetermissa |
| + |
Leaf blade elliptic to obovate-elliptic or subrhomboid, 3-15 × 2-5 mm; calyx ca. 4 mm, 5-veined |
|
236 Primula pumilio |
| |
|
|
|
| 11 (9) |
Leaf blade broadly ovate to ovate-lanceolate; scape 1-flowered; bractsreduced, scalelike; corolla lavender blue to purplish |
|
237 Primula oxygraphidifolia |
| + |
Leaf blade elliptic-obovate to oblanceolate; umbel 1-6-flowered; bractslinear; corolla yellow, white, or purple |
|
136 Primula dickieana |
| |
|
|
|
| 12 (8) |
Bracts linear, not auriculate at base |
|
239 Primula fasciculata |
| + |
Bracts oblong, auriculate at base. |
|
(13) |
| |
|
|
|
| 13 (12) |
Auricles of bracts 4-7 mm |
|
240 Primula involucrata |
| + |
Auricles of bracts 1-1.5 mm. |
|
(14) |
| |
|
|
|
| 14 (13) |
Calyx densely glandular ciliolate on margin; scapes longer than pedicel |
|
241 Primula nutans |
| + |
Calyx glabrous on margin; scapes often shorter than pedicel |
|
242 Primula tibetica |
| |
|
|
|
| 15 (6) |
Flowering scapes 1-3(-5) cm, 1- or 2-, rarely few flowered. |
|
(16) |
| + |
Flowering scapes usually more than 5 cm, 3- to many flowered. |
|
(36) |
| |
|
|
|
| 16 (15) |
Leaves efarinose. |
|
(17) |
| + |
Leaves conspicuously farinose. |
|
(23) |
| |
|
|
|
| 17 (16) |
Leaves densely short glandular pubescent and minutely glandular, scabrous. |
|
(18) |
| + |
Leaves glabrous, rarely sparsely puberulent. |
|
(20) |
| |
|
|
|
| 18 (17) |
Scapes shorter than leaf rosette; calyx tubular, glandular pubescent |
|
250 Primula walshii |
| + |
Scapes longer than leaf rosette; calyx campanulate, short-stalked glandular. |
|
(19) |
| |
|
|
|
| 19 (18) |
Flowers homostylous; corolla limb ca. 8 mm wide |
|
248 Primula annulata |
| + |
Flowers heterostylous; corolla limb ca. 15 mm wide |
|
249 Primula rubicunda |
| |
|
|
|
| 20 (17) |
Leaf blade pinnately 5-11-lobed |
|
238 Primula urticifolia |
| + |
Leaf blade dentate or incised-lobulate. |
|
(21) |
| |
|
|
|
| 21 (20) |
Corolla tube ca. 5 mm; leaf blade oblong-cuneate to obovate, leaf apex subtruncate, with 3-7 sharp teeth |
|
245 Primula muscoides |
| + |
Corolla tube 8-10 mm; leaf blade spatulate, apex rounded. |
|
(22) |
| |
|
|
|
| 22 (21) |
Leaves minutely glandular, margin dentate near apex; corolla tube glabrous outside |
|
246 Primula waddellii |
| + |
Leaves glabrous, margin dentate from base to apex; corolla tube pubescent outside |
|
247 Primula tenuiloba |
| |
|
|
|
| 23 (16) |
Corolla tube ca. as long as to slightly longer than calyx. |
|
(24) |
| + |
Corolla tube 2-3 × as long as calyx. |
|
(28) |
| |
|
|
|
| 24 (23) |
Calyx parted nearly to middle; lobes linear, ovate-triangular, or lanceolate. |
|
(25) |
| + |
Calyx parted below middle; lobes lanceolate. |
|
(26) |
| |
|
|
|
| 25 (24) |
Leaf blade entire or crenulate above middle; calyx 3-5 mm, lobes lanceolate to broadly linear |
|
200 Primula concinna |
| + |
Leaf blade denticulate to dentate; calyx 5-7 mm, lobes ovate-triangular |
|
201 Primula rhodochroa |
| |
|
|
|
| 26 (24) |
Leaves densely glandular puberulent adaxially, white farinose abaxially; corolla lobes entire to erose-crenulate |
|
192 Primula caveana |
| + |
Leaves glabrous; corolla lobes emarginate. |
|
(27) |
| |
|
|
|
| 27 (26) |
Flowers homostylous; leaves white farinose |
|
202 Primula meiotera |
| + |
Flowers heterostylous; leaves yellow farinose |
|
230 Primula kialensis |
| |
|
|
|
| 28 (23) |
Flowers subsessile; bracts inserted immediately below calyx. |
|
(29) |
| + |
Flowers conspicuously pedicellate; bracts inserted at base of pedicel. |
|
(30) |
| |
|
|
|
| 29 (28) |
Farina white; corolla limb to 2.5 cm wide |
|
251 Primula tenella |
| + |
Farina yellow; corolla limb to 1 cm wide |
|
254 Primula minutissima |
| |
|
|
|
| 30 (28) |
Scapes obsolete; bracts 1 |
|
229 Primula socialis |
| + |
Scapes well developed; bracts 2 to many. |
|
(31) |
| |
|
|
|
| 31 (30) |
Farina white or light cream-yellow. |
|
(32) |
| + |
Farina bright yellow. |
|
(33) |
| |
|
|
|
| 32 (31) |
Flowers homostylous; calyx 8-10 mm, parted to middle or slightly below |
|
221 Primula clutterbuckii |
| + |
Flowers heterostylous; calyx 6.5-7 mm, parted to below middle |
|
253 Primula candicans |
| |
|
|
|
| 33 (31) |
Corolla tube 3-4 × as long as calyx; leaf blade membranous |
|
228 Primula membranifolia |
| + |
Corolla tube ca. 2 × as long as calyx; leaf blade not membranous. |
|
(34) |
| |
|
|
|
| 34 (33) |
Scapes 1-1.5 × as long as pedicel |
|
230 Primula kialensis |
| + |
Scapes at least 3 × as long as pedicel. |
|
(35) |
| |
|
|
|
| 35 (34) |
Calyx 5-veined, parted to ± middle |
|
231 Primula yunnanensis |
| + |
Calyx not veined, parted to below middle |
|
252 Primula rimicola |
| |
|
|
|
| 36 (15) |
Corolla tube ca. as long as to slightly longer than calyx. |
|
(37) |
| + |
Corolla tube 2-3 × as long as calyx. |
|
(51) |
| |
|
|
|
| 37 (36) |
Plants conspicuously farinose. |
|
(38) |
| + |
Plants efarinose or nearly so. |
|
(42) |
| |
|
|
|
| 38 (37) |
Bracts reflexed after anthesis |
|
203 Primula algida |
| + |
Bracts suberect, not reflexed. |
|
(39) |
| |
|
|
|
| 39 (38) |
Calyx 5-veined, nearly efarinose. |
|
(40) |
| + |
Calyx smooth, ± white farinose. |
|
(41) |
| |
|
|
|
| 40 (39) |
Calyx campanulate, 4-6 mm, lobes ovate-oblong to triangular |
|
204 Primula farinosa |
| + |
Calyx tubular, 6-10 mm, lobes oblong to lanceolate |
|
205 Primula stenocalyx |
| |
|
|
|
| 41 (39) |
Leaves white farinose; calyx ca. 4.5 mm, lobes lanceolate; plants stoloniferous |
|
206 Primula caldaria |
| + |
Leaves efarinose; calyx 6-7.5 mm, lobes oblong; plants without stolons |
|
207 Primula fangingensis |
| |
|
|
|
| 42 (37) |
Bracts reflexed after anthesis |
|
203 Primula algida |
| + |
Bracts suberect, not reflexed. |
|
(43) |
| |
|
|
|
| 43 (42) |
Calyx 5-veined. |
|
(44) |
| + |
Calyx without veins. |
|
(45) |
| |
|
|
|
| 44 (43) |
Calyx campanulate, 4-6 mm, lobes triangular |
|
204 Primula farinosa |
| + |
Calyx tubular, 6-10 mm, lobes oblong to lanceolate |
|
205 Primula stenocalyx |
| |
|
|
|
| 45 (43) |
Calyx lobes triangular or lanceolate, apex acute. |
|
(46) |
| + |
Calyx lobes oblong, apex obtuse or rounded. |
|
(48) |
| |
|
|
|
| 46 (45) |
Umbels (1- or)2-8-flowered; bracts 1.5-2 mm |
|
210 Primula erratica |
| + |
Umbels 10- to many flowered; bracts 3-10 mm. |
|
(47) |
| |
|
|
|
| 47 (46) |
Bracts oblong-ovate; scapes fistular, constricted below inflorescences |
|
208 Primula fistulosa |
| + |
Bracts lanceolate; scapes neither fistular nor constricted below inflorescences |
|
209 Primula longiscapa |
| |
|
|
|
| 48 (45) |
Calyx tubular to tubular-campanulate, parted to 1/3; bracts slightly saccate at base |
|
211 Primula efarinosa |
| + |
Calyx campanulate, parted to middle or below; bracts not saccate at base. |
|
(49) |
| |
|
|
|
| 49 (48) |
Leaves membranous when dry, puberulent adaxially |
|
212 Primula huashanensis |
| + |
Leaves papery when dry, glabrous, sometimes sparsely glandular. |
|
(50) |
| |
|
|
|
| 50 (49) |
Pedicel and calyx smooth; leaf blade ovate to oblong, not well developed in flowering plants |
|
213 Primula obsessa |
| + |
Pedicel and calyx minutely glandular; leaf blade oblanceolate, well developed in flowering plants |
|
214 Primula sertulum |
| |
|
|
|
| 51 (36) |
Corolla yellow. |
|
(52) |
| + |
Corolla rose-purple or violet. |
|
(53) |
| |
|
|
|
| 52 (51) |
Leaf blade spatulate to linear-lanceolate or linear-oblanceolate; farina bright yellow |
|
226 Primula prattii |
| + |
Leaf blade broadly ovate to elliptic or suborbicular; farina white |
|
216 Primula flava |
| |
|
|
|
| 53 (51) |
Calyx tubular, 6-12 mm, 5-veined. |
|
(54) |
| + |
Calyx campanulate, 4-6 mm or, if more than 7 mm, without veins. |
|
(55) |
| |
|
|
|
| 54 (53) |
Leaf blade subentire, crenulate, to dentate; pin flower style ca. as long as calyx, thrum flower style 2-3 mm |
|
205 Primula stenocalyx |
| + |
Leaf blade irregularly dentate; pin flower style ca. as long as corolla tube, thrum flower style slightly shorter than calyx |
|
218 Primula jaffreyana |
| |
|
|
|
| 55 (53) |
Leaves efarinose. |
|
(56) |
| + |
Leaves conspicuously farinose. |
|
(58) |
| |
|
|
|
| 56 (55) |
Leaf blade pinnatifid-incised, lobules dentate |
|
235 Primula laciniata |
| + |
Leaf blade denticulate. |
|
(57) |
| |
|
|
|
| 57 (56) |
Calyx 3.5-5.5 mm; corolla limb 1-1.5 cm wide |
|
233 Primula conspersa |
| + |
Calyx (5-)6-10 mm; corolla limb 1.5-2.5 cm wide |
|
234 Primula gemmifera |
| |
|
|
|
| 58 (55) |
Calyx usually parted to 1/3; leaves yellow farinose. |
|
(59) |
| + |
Calyx parted to middle or below. |
|
(60) |
| |
|
|
|
| 59 (58) |
Corolla tube 10-13 mm; pin flower style reaching middle of tube |
|
219 Primula fernaldiana |
| + |
Corolla tube 8-10 mm; pin flower style ca. as long as tube |
|
220 Primula fangii |
| |
|
|
|
| 60 (58) |
Leaves white farinose or light cream-yellow farinose. |
|
(61) |
| + |
Leaves densely bright yellow farinose abaxially. |
|
(63) |
| |
|
|
|
| 61 (60) |
Calyx lobes triangular, midvein obscure; pin flower style slightly exceeding middle of corolla tube |
|
224 Primula knuthiana |
| + |
Calyx lobes lanceolate, midvein conspicuous; pin flower style nearly as long as corolla tube. |
|
(62) |
| |
|
|
|
| 62 (61) |
Corolla tube 1.1-1.2 cm; thrum flower style or pin flower stamens reaching middle of corolla tube |
|
222 Primula tayloriana |
| + |
Corolla tube 1.2-1.5 cm; thrum flower style or pin flower stamens reaching basal 1/4 of corolla tube |
|
223 Primula scopulorum |
| |
|
|
|
| 63 (60) |
Plants robust, with a tuft of thick stringy roots; scapes more than 8 cm; capsule slightly longer to 2 × as long as calyx |
|
225 Primula pulchella |
| + |
Plants dwarf, with fibrous roots; scape usually less than 8 cm; capsule shorter than calyx. |
|
(64) |
| |
|
|
|
| 64 (63) |
Corolla tube 3-4 × as long as calyx; leaves membranous |
|
228 Primula membranifolia |
| + |
Corolla tube 2-3 × as long as calyx; leaves not membranous. |
|
(65) |
| |
|
|
|
| 65 (64) |
Leaf blade obscurely crenate; calyx lobes subobtuse; corolla tube not cylindric, gradually widened from middle upward |
|
232 Primula maikhaensis |
| + |
Leaf blade conspicuously dentate or serrate on distal 1/2; calyx lobes acute; corolla tube cylindric, widened near mouth. |
|
(66) |
| |
|
|
|
| 66 (65) |
Leaf rosettes 5-6 cm; leaf blade 1-2.3 cm wide; corolla tube of thrum flowers 1.4-1.5 cm |
|
223 Primula scopulorum |
| + |
Leaf rosettes 1-3 cm; leaf blade less than 1 cm wide; corolla tube of. thrum flowers 1-1.3 cm. |
|
(67) |
| |
|
|
|
| 67 (66) |
Scapes 1-1.5 × as long as pedicel; calyx 5-8 mm |
|
230 Primula kialensis |
| + |
Scapes at least 3 × as long as pedicel; calyx (2-)4-5(-7) mm |
|
231 Primula yunnanensis |
