IRIDE^ 145 



stigmas orange, truncate, corm small, enclosed in a fibrous 

 envelope; Pyrenees. 



2. Iris, L. 



Flowers regular, enclosed in a green or brown spathe ; 

 sepals usually larger than the petals, all brightly coloured; 

 stigmas 3, petaloid, bifid at the apex, arching over the 

 stamens ; leaves chiefly radical, ensiform, springing from 

 a fleshy rhizome. 



A. Sepals bearded on the inside: — I. germanica, L., 

 Purple Flag; flowers large, several on a stem, nearly 

 sessile, sepals chiefly blue, reflexed, filaments as long as 

 the anthers ; rocks and walls ; Southern Switzerland, 

 Pyrenees. I. pallida, Lam. ; stem bearing several flowers, 

 sepals violet, stem longer than the leaves; Western 

 Switzerland, Tirol. /. virescens, Red. ; flowers whitish- 

 yellow, tube of perianth enclosed in the spathe, stem 

 longer than the leaves ; rocks ; Sion. /. pumila, L. ; 

 tube of perianth much longer than the spathe, stem 2-4 

 in., shorter than the leaves, flowers variable in colour; 

 Southern Tirol. 



B. Sepals not bearded on the inside : — /. Pseudacorus, 



L, Yellow Flag ; flowers yellow, sepals recurved, striped 



with brown, petals very small and narrow; by water, 



frequent. /. sibirica, L. ; flowers violet, petals larger 



than the stigmas, stem 1^-3 ft., longer than the leaves, 



cylindrical ; damp meadows ; Switzerland (rare). Jura, 



Tirol, Piedmont, Lombardy, Pyrenees. /. graminea, L. ; 



flowers violet, petals larger than the stigmas, stem 6-9 in., 



shorter than the narrowly lanceolate leaves, 2-edged ; 



Ticino (rare), Vosges, Pyrenees. 



VOL. II. K 



