1914-15.] BOTANICAL SOCIETY OF EDINBURGH 319 



different from the type P. filipes. Watt, and that they 

 cannot be included under one name. 



P. filipes, Watt, 1 is a Bhutan plant, known only from 

 Griffith's specimens (Plate XXXI). 2 The director of Kew 

 has kindly allowed me to photograph the sheet which is in 

 Kew Herbarium. It is a multicipital rhizomatous plant with 

 slender thread-like petioles carrying thin membranous 

 laminae which are ovate oblong or orbicular and entire or 

 slightly lobed. The plant is more or less pubescent, but 

 has apparently no long articulate hairs. The scape is also 

 slender, quite short, shorter than the foliage, and bears a 

 many-flowered (up to 10) umbel with minute linear bracts 

 and flowers on filiform pedicels 1-3 cm. long. The calyx is 

 very small — only 2 mm. long — and the lobes are very short. 



The habitat given by Griffith and cited by all writers is 

 Bhutan, on rocks near Chuka, alt. 6500 feet. I assume it 

 occurs on moist ledges — the foliage is against its being a 

 true rupestral. 



Unquestionably in its delicate growth-form, its short 

 inflorescences, and delicate flower-pedicels, P. filipes, Watt, 

 recalls features of P. Listeri, King, but the two species are 

 diagnosed at once by the form of foliage which in P. filipes, 

 Watt, is usually entire and ovate oblong, in any case seems 

 never to be ivy-shaped, by the umbel which is many- 

 flowered in P. filipes, Watt, and by the calyx which is 

 quite small in P. filipes, Watt. 



1 The following is -the description of the species in Flora of British 

 f ndia : — 



" P. filipes, Watt, in ' Journ. Linn. Soc. Bot.,' ined. ; sparsely pubescent, 

 not mealy, leaves l-!. 1 , inch, orbicular ovate or oblong, cordate entire, 

 lobulate or toothed, petiole as long as the blade, very slender, scape 

 shorter than the leaves, 6-8 fid., calyx-lobes short, very broad, corolla 

 flesh-coloured, mouth not annulate, limb Hat, capsule globose included, 

 seeds very minute, smooth. Primula, Griff. Itin. Notes, 123, n. 396; 

 Notul., iv, 299 ; Ic. PI. Asiat., t. 485, f. 1. 



"Bhotan ; rocks near Chuka, alt. 6500 feet, Griffith. 



" Roolstock elongate, woody. Leaves membranous. Scape about 

 equalling the petiole, slender in flower, thickened in fruit ; bracts small, 

 subulate. Calyx broadly campanulate. Corolla-tube }■ inch, three 

 times as long as the calyx, funnel-shaped ; limb as much broad ; lobes 

 obovate, two-lobed. Seeds 5 \j inch, dark brown, obtusely-angled. Allied 

 to the Chinese P. ^conica, Hance (P. poculiformis, Bot. -Mag., t. 6582), 

 but much smaller and more delicate, and the corolla-tube is longer. " 



2 The specimen at the left upper corner of plate is turned top 

 downward on the sheet; by looking at it reversed an idea of the 

 growth-form of the plant will be obtained. 



