298 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



* North- West Himalayan Forms. 



1 (0*). P. dcntieulata, Smith (fig. 69, a & b) ; Afghanistan, Kashmir to Sikkim, 

 Bhutan, Khasia and Shan hills. 



2 (7). P. farinosa, Linn. ; Western Tibet and Chamba, 12-17.000 feet. (Is allied 

 to but distinct from P. magellanica.) 



3. P. Heydei. Watt ; Western Tibet and Chamba, 12-14,000 feet. (Creeps by 

 means of stolones and has a distinct peduncle.) 



4. /'. minutissima, Jacquem. (fig. 69, c) ; Baltistan, Kashmir to Kumaon, 12- 

 16,000 feet. 



** Eastern and Central Himalayan Forms. 



5 (1). P. eapitata, Hook. ; Sikkim and Bhutan 12-15,000 feet. (An East Himalayan 

 species closely allied to and possibly only an alpine state of P. dcnticulata.) 



6 (1). P. erosa, Wall. ; Kumaon and Bhutan; not seen in Sikkim. (A form of P. 

 denticulata with very large thin erose leaves.) 



7 (2). P. bellidifolia, King ; Sikkim, 13,000 feet. (Might almost be spoken of as 

 a large condition of P. farinosa.) 



8. P. glabra, Klatt (fig. 69, n) ; Sikkim, 13-15,000 feet. 



9. P. pnsilla, Wall. ; Nepal and Sikkim, 13-16,000 feet. (Bracts leafy, glandular, 

 mouth of corolla densely woolly.) 



10. P. sappliirina, Hook. f. ; Sikkim, 13-15,000 feet. 



11. P. muscoides, Hook. f. ; Sikkim, 15,000 feet. 



Section 2 : Soldanelloides (fig. 70). — Leaves thin, softly pilose linear 

 obovate-spathulate, often suddenly cuneate to a winged petiole, deeply and 

 irregularly serrate on upper two thirds of length, never mealy. Inflores- 

 cence capitate, but mostly with few or even solitary flowers, which are 

 quite sessile and deflexed or nodding. Corolla large, almost convolvulate 

 in shape; petals usually emarginate and toothed. Calyx forming con- 

 spicuous masses, short but broad, almost campanulate, with blunt teeth 

 that are generally serrulate on the margin. Bracts, one to each flower, 

 very small and inconspicuous, but when the flowers are numerous they 

 form a distinct involucre. 



* North-West Himalyan Forms. 



12 (14). P. Reidii, Duthie; Chamba 12,000 feet. (Probably only a robust N.W.H. 

 form of P. uniflora.) 



** Central and Eastern Himalayan Forms. 

 13. P. Wattii, King (fig. 70, c) ; Sikkim. 



14 (12). P. uniflora, Klatt (fig. 70, b) ; Sikkim, 13-15,000 feet. 

 15. P. soldanelloides, Watt (fig. 70, a) ; Sikkim, 13-15,000 feet. 



(b) Floivers pedunculate {umbellate). 



Section 3 : Rosea (fig. 71). — Leaves linear-ovate, acute, tapering some- 

 what suddenly (especially the later foliage) into winged petioles, often 

 sharply toothed, smooth shining green, glabrous, scarcely mealy. Inflores- 

 cence umbellate, few-flowered, never verticillate ; scapes much longer than 

 the leaves, especially when in fruit. Corolla, tube long, straight, relatively 

 wide, and expanding very gradually towards the naked throat ; lobes dis- 

 tinctly emarginate or even bifid. Bracts few, parallel to each other, erect, 

 forming a 1-seriate whorl, and gibbous or even spurred below (fig. 71, d). 



* Numbers shown within brackets denote closely allied or doubtfully distinct 

 species. 



