100 F - Pax u - R - Knulh. — Primulaceae. 



Clavis specierum. 



A. Flores lutei. 



a. Flores manifeste pedicellati. 



a. Folia efarinosa, anguste obovato-spathulata . . . . 125. Pr. sikkimensi 

 ß. Folia subtus luteo-farinosa. 



I. Folia crenato-dentata 126. IV. Stuart iL 



II. Folia subintegra 127. Pr. Prattii. 



b. Flores subsessiles. Corollae lobi emarginati et erosi . 128. Pr. elongütu. 



B. Flores purpurei, rarius albi. 



a. Corollae lobi non reflexi. 



a. Corollae lobi obtusi, emarginati vel retusi. 

 I. Calyx ad medium vel ultra fissus. 



1 . Umbella multiflora. 



* Capsula calycem multo excedens 129. Pr. ttirulis. 



** Capsula calycem ± aequans 130. Pr.pidchrlla. 



2. Umbella pauciflora. Folia linearia 131. Pr.pui 



II. Calyx non vel vix ad medium fissus. 



1. Species asiatica 132. Pr. Ait<-J,i.< 



2. Species americanae. 



* Major. Umbella 2 — 4-flora 133. Pr. Cusickiaria. 



** Minor, pusilla. Umbella 1- vel rarius 2-flora 134. Pr. angiuHfolia. 



ß. Corollae lobi integri. 



I. Species arctica. Corollae lobi acuti ^ 135. Vr. anuia. 



II. Species asiatica. Corollae lobi obtusi 136. Pr. secundiflora. 



b. Corollae lobi reflexi. Flores saepe in umbellas super- 

 positas dispositi. 



a. Scapus foliis sesquilongior. Calyx 10 — 12 mm longus 137. Pr. sxechuanica. 



ß. Scapus folia multoties superans. 



I. Calyx ± 8 mm longus. Corolla 1,5 cm diametiens 138. Pr.Maximou 

 II. Calyx zb 12 mm longus. Corolla 2 cm diametiens 139. Pr. Umg\ 



125. Pr. sikkimensis W. J. Hook, in Curtis, Bot. Magaz. (1851) t. 4597; Walpers, 

 Ann. V. (1858) 465; Hegel in Gartenflora XXV. (1876) 321 t. 882; Hook. I. II. lirit. 

 Ind. III. (1882) 491; Franch. in Bull. Soc. bot. France XXXII. (1885) 268: Tax in 

 Engler's Bot. Jahrb. X. (1889) 207; Forbes and Hemsl. in Journ. Linn. Soc. XXVI. 

 (1889) 42. — Pr. penduliflora Kern, ex Stein in Samenkat. bot. Gart. Breslau 1881. 

 — Glabra, calyce excepto efarinosa. Folia petiolata, 10 — 13 cm longa, 3 — 4 cm lata, 

 anguste obovato-spathulata, obtusa, rugulosa, argute duplicato-serrata, in petiolum lami- 

 nam subaequantem attenuata. Scapus elongatus, 20 — 35 cm longus, umbellam niulti- 

 floram gerens; bracteae angustae, e basi lata subulato-acuminatae, — 1 cm Ion- 

 pedicelli graciles, ad 3 cm longi; flores leviter cernui. Calycis farinosi, 5-costati, 8 — 

 9 mm longi, tubuloso-campanulati, non ad medium fissi lobi trianguläres, acuti, saepe 

 subrecurvi. Corollae flavae tubus calycem paullo superans, infundibulifornii- .nupliat us. 

 limbus concavus, explanatus ad 2,5 cm diametiens, lobi rotundati, emarginati. Capsula 

 calycem superans, subcylindrica. — Fig. 29 A. 



Sikkim-Himalaya, an feuchten Orten, 4000 — 5000m (Dungboo!, J.D. Hook 

 Szechuan, Ta-tsien-lu (Pratt n. 254!), Lankong, 3500 m (Delavay). — In die Kultur 

 1851 eingeführt vom botan. Garten Kew, aus Hookerschen Samen erzogen. Kultur 

 wie bei P. rosca (S. 81). 



126. Pr. Stuartii Wall, in Roxb. Fl. ind. (ed. Carey) IL (1824) 20; Tont. Kl. oepaL 

 1824—26) 44 t. 34; Don, Prodr. Fl. nepal. (1825) 80; Duby in DC. Prodr. VIII. 



(1844)41; Balfour in Curtis, Bot. Magaz. 11848) t. 4356; Pax in Engler's Bot. Jahrb. 

 X. (1889) 207. — IV. Stuartii var. Ujpica Watt in Journ. Linn. Soc. XX. hs: 12: 

 Hook. f. Fl. Brit. Ind. III. (1882) 490. — Glabra. Folia petiolata, 10—12 cm longa, 



