PRIMULACE 51 
pink with yellow centre, nearly sessile, plant densely 
czspitose, leaves very small, blunt, pubescent; high, 
clefts of rocks. A. glaczalzs, Hoppe; flowers red, rarely 
white, stalked, corolla-lobes entire, plant czspitose, leaves 
lanceolate, blunt, hairy; very high; Switzerland, Styria. 
A. pubescens, DC.; flowers white with yellow centre, 
leaves lanceolate, acute, hairy ; Switzerland, Dauphiny, 
Pyrenees, rare. A. Charpenterit, Heer; flowers pink, on 
long stalks, corolla-lobes incised, plant czespitose, leaves 
spathulate, blunt, hairy; very rare; Valais, Ticino. J. 
pyrenaica, Lam.; flowers white, on long stalks, with 2-3 
lanceolate bracts, calyx pubescent, leaves lanceolate, 
keeled; Pyrenees. A. cylindrica, DC.; flowers small, 
white, on long hairy stalks, leaves in dense cylindrical 
rosettes, linear-lanceolate, hairy; Pyrenees. 
2. /PRIMUDA,) de, 
Flowers in umbels surrounded by an involucre of 
bracts, rarely solitary, pink, violet, yellow, or white; 
stem always leafless; calyx 5-toothed ; corolla funnel- or 
saucer-shaped, 5-lobed; stamens 5, epipetalous; ovary 
nearly globular, style filiform, stigma capitate; seed- 
vessel a 5-valved capsule. Many species of Primula dis- 
play marked dimorphism or heterostyly—that is, some 
flowers have shorter and some longer styles; in the 
former, the nearly sessile anthers are placed in the throat 
of the corolla, nearly level with the stigma in the other 
form ; in the latter, the anthers are fixed half-way down 
the corolla-tube, and again nearly level with the stigma 
in the other form. Since the flowers in the same plant 
are always all of one kind, this promotes cross-fertilisation 
