description. In Bhutan the species is met with in dry 
sunny positions in rocky soil at about 16,000 feet above 
sea-level. P. chasmophilais a member of the Soldanelloides 
section of the genus, whereof there are several species in 
the eastern Himalaya and Western China, most of them 
characterised by their diminutive size and relatively 
small leaves associated with large and conspicuous 
flowers, though usually they enlarge considerably after 
flowering. Perhaps the extreme of this condition is met 
with in P. uniflora, Klatt, a Sikkim species in which the 
leaves are remarkably small while there is but a single 
large flower. The nearest allies of P. chasmophila are 
the Chinese P. spicata, Franch., and the Himalayan 
P. Wattii, King. 
Description.—Herb, about 8 in. high. Leaves all radical, stalked, slightly 
bullate, oblong-lanceolate, base shortly cuneate, 1-14 in. long, 4-2 in. wide, 
pinnately lobulate, thin, green, the lobules wide-ovate, 1-2-toothed, about 
zo in. long, puberulous on both surfaces, but especially beneath ; midrib much 
raised beneath, purplish, puberulous; lateral nerves about 7 along each side the 
midrib, raised beneath ; petiole 4-3 in. long, purple, puberulous. Flowers 
clustered, reflexed, sessile, often 3 together; peduncle 23-3 in. long, j; in. 
thick, finely puberulous; bracts calycine, unequal, more or less ovate, the 
largest 2 in. long. Calyx campanulate, } in. long, irregularly 5-lobed, the 
lobes sometimes 2-4-toothed at the tip, very finely puberulous externally, 
green and often suffused with purple. Corolla deep violet, fragrant; tube 
funnel-shaped, 2 in. long, puberulous outside ; limb ¢ in. across, deeply 5-lobed ; 
lobes very distinctly emarginate. Anthers zz in. long, inserted below the 
middle of the tube. Ovary subglobose; style slender, tipped by the discoid- 
capitate stigma, 
Tas. 8791.—Fig. 1, calyx and pistil; 2, calyx, in section, showing ovary and 
style ; 3, corolla, in section ; 4and 5, anthers :—all enlarged. 
