AMARYLLIDACE^ — IRIDACE^ 21 



2. E. grandifldrum, Pursh. 



Resembling the preceding but with larger flpwers and purple anthers. 

 Rooky Mta. 



14. CLINTONIA 



Perianth divisions similar, deciduous ; anthers attached near the 

 centre. Stemless or short-stemmed herbs with flowers in umbels on 

 a scape sheathed by the bases of the 2—4 large oblong leaves. 

 1. C. boreaUs, (Ait.) Raf. 



Flowers greenish yellow in terminal or lateral umbels ; scape 4-10 in. 

 long ; fruit a blue berry. Cool woods, E. Man. 



XV. AMARYLLIDACE.*; (Amabyllis Family). 

 Bulbous herbs with flat linear root leaves, closely resembling 

 LiliacesB, except that the perianth is adherent to the ovary and the 

 flowers are usually borne on a scape. 



1. HYPOXIS. Stab Grass. 



Perianth spreading, withering, persistent in fruit; seed globular. 

 Small stemless herbs with grass-like leaves and a few-flowered scape. 

 1. H. hirsuta, (L.) Coville. Yellow Star Gkass. 



Leaves longer than the scape; perianth hairy, greenish outside, yellow 

 within. Moist prairie, Man. and Sask. 



XVI. IRIDACE.a; (Iris Family). 



Herbs with equitant, 2-ranked, linear leaves and perfect flowers; 



parts of the perianth petal-like, the tube adnate to the 3-oelled ovary; 



'Stamens 3, distinct, with extorse anthers. Perennials from fibrous 



roots or rootstocks; flowers from a spathe of 2 or more leaves. 



1. IRIS. Fletje-db-lis. Flag. 



Flower tube prolonged above the ovary, stamens distinct, the 

 anthers sheltered by arching, somewhat petal-like branches of the 

 style. Perennials with sword-shaped leaves and large showy flowers. 

 1. I. versicolor, L. Large Blue Flag. 



Stem stout, angled on one side; leaves glaucous; fruit large, triangular 

 flowers blue, variegated with green, yellow, and white towards the centre. 

 Wet ground, E. Man. 



2. SISYRINCHIUM. Blue-eyed Grass. 

 Perianth spreading; fruit globular, 3-angled. Low, slender 

 perennials with grass-like leaves and 2-winged stems; flowers from 

 a 2-leaved spathe. 



