OBSERVATIONS ON INDIAN PRIMULAS. 



201 



throat, mouth obstructed, often annulate and lobes entire, or 

 emarginate or even crenate-serrate. 



* North-West Himalayan Forms. 

 t Petals entire or only faintly emarginate : throat constricted but not annulated. 



24 (25).* P. purpurea, Royle ; Tibet, Lahul to Kumaon, 10-14,000 feet. (A 

 very variable plant, but in its normal conditions quite distinct from P. Stuartii ; 

 fruit linear erect, exceeding the calyx ; flowers purple). 



25 (24). P. Moorcroftiana, Wall.; Kumaon and Kullu, 16,000 feet. (Fruit 

 often one inch long and more than twice the calyx ; flowers purple. Though 

 a very different-looking plant, is generally treated as a variety of purpurea.) 



26. P. Inayati, Duthie ; Hazara, 4,500 feet. 



27. P. Stuartii, Wall. ; Tibet, Kashmir, and Chamba, also Sikkim, 

 12-14,000 feet. (Fruit linear, about same length as the calyx ; flowers yellow 

 perfumed.) 



28. P. Traillii, sp. nov. ; Kullu, 16,000 feet. (Fruit globular, contained within 

 the calyx ; flowers pale blue.) 



** Central and Eastern Himalayan Forms. 



29. P. sikkimensis, Hook.; Sikkim, in wet places, 11-15,000 feet. (Fruit 

 globose; flowers lemon-yellow, delicately perfumed.) 



If Petals distinctly emarginate and often crenate-serrate ; throat constricted and 

 obstructed with hairs, or furnished with a distinct annulus. 



30. P. prolifera, Wall. ; Khasia and Naga hills, in running water, 8,000 feet. 

 (Capsule globose : flowers yellow. Allied to, but distinct from, the Javan 

 P. imperialis and also P. sikkimensis and P. Traillii.) 



31 (32). P. elongata, Watt; Sikkim, 12-13,000 feet. (Closely allied 

 to P. obtusifolia.) 



32 (31). P. obtusifolia, Royle ; Kunawar, Kumaon, Sikkim, and Bhutan. 



It is by no means certain that we have correctly identified P. obtusifolia, Royle, 

 and possibly two or more very distinct plants have been placed under it : — 

 var. Roy lei, Fl. Brit. Ind., Sundakfu, Sikkim, a purple-flowered plant at 

 10-12,000 feet, and a yellow condition at Yangpung at 15,000 feet. But if 

 this be correct it is curious that while the purple-flowered forms have a strong 

 metallic smell that causes headache if much inhaled, the yellow states have a soft 

 delicate odour and are much like P. sikkimensis and P. prolifera. It is often seen 

 with solitary axillary flowers and with or without umbellate scapes on the same 

 root. 



33. P. Tanneri, King ; Sikkim, 14,000 feet. (This is the plant to which I gave 

 the MS. name of P. Balfouri and issued specimens under that name before 

 I knew of its having been described : it seems also to be P. obtusifolia var. 

 Griffithii of the Fl. Brit. Ind. Flowers pale lavender-blue.) 



34 (35)- P- Kingii, Watt ; Sikkim. (Flowers dark purple or claret-coloured ; 

 ruits globose.) 



35 (34). P. Gammieana, King; Sikkim, 14,000 feet; also Yatung, Tibet. 

 (Is possibly only a form of P. Kin git.) 



3 6 (37)- P- Dickieana, Watt; Sikkim, Lachen, 10-13,000 feet. (Flowers 

 yellow, pubescent, not perfumed.) 



37 (36). P. Pantlingii, King ; Sikkim. (Probably = P. Dickieana.) 



38. P. Elwesiana, King ; Sikkim, 12,000 feet. (Flowers large, solitary, 

 purple, softly pubescent.) 



39. P. tenella, King ; Chumbi Valley, Sikkim, 13,000 feet. (Flowers solitary, 

 large, bluish-white, glabrous ; bract outside the calyx, and flower thus sessile.) 



Section 5 : Petiolaris. — Leaves, originally spathulate but becoming 

 ovate, elliptic to rotund, and more or less cordate, deeply and sharply 

 * See footnote on p. 199. 



