GENTIANACEiE. 177 



2. Pnle'ttia. Corolla 4-lobed, tlte lobes all sjmrred at tlie base. Flow- 



ers yellowish or purplish, somewhat cymosc. 



3. OcHtin'ua, Coj-olla not spijrrea, 4-o-lobea, mostly funnel-form or 



bell-shapefl, generally with teeth or folds in the sinuses of the 

 lobes. Stigmas 2, persistent. Pod oblong. Seeds innumerable. 

 Flowers showy, in late summer and autumn. 



4. Stenyau'tlics. A bog-plant. Corolla short, funnel-form, 5-lobed, 



densely viMte-bearded on tlie upper face. Leaves alternate, coni- 

 pomid, c{f 3 oval leaflets, Tlie flowers in a raceme at tlie summit 

 of a naked scape, white or tinged with pink. 



5. Aiimnan'themnm. An aquatic, with simple i-ound-heart-shaped 



floating leaves on long petioles. Corolla white, wheel-shaped, 

 5-parted, beardecl at the base only. Flowers in an umbel borne on 

 the petiole. 



1. FBA'SEKA, Walt. American Columuo. 

 F. Carolinien'siS, Walt. Tall and showy. Leaves 

 whorled, mostly in fours. Eoot thick. Flowers numerous 

 in a pyramidal panicle. — Dry soil. 



2. IIAIE'NIA, Bork. Spdkred Gentian. 

 H. deflex'a, Griseb. Stem erect, 9-18 inches high. Leaves 

 3-5-nerved, those at the base of the stem oblong^spathulate, 

 petioled ; the upper acute and sessile or nearly .so. Spurs 

 of the corolla curved. — Not common in Ontario ; common 

 onitha Lower St. Lawrence. 



3. KESiTIA'SA, L. GENTIAN. 



1. G. erini'ta, Froel. (Fringed Gentian.) Corolla fun- 

 nel-form, 4-lobed, the lobes fringed on the margins ; no plaited 

 folds in the sinuses. Flowers shy-blue, solitary, on long 

 naked stalks^ terminating the stem or simple branches. 

 Ovary lanceolate^ Leaves lance-shaped or ovate-lanceolate. 

 — Low grounds. 



2. G. deton'sa. Fries., {G-. serrata, Gunner.) (Smaller 

 Fringed G.) is distinguished from No. 1 by the shorter or 

 almost in^nspiouous fringe of the corolla, the linear or 

 lance-linear leaves, and the broader ovary. — Moist grounds, 

 ohieily in the Niagara District. 



3. G. quinqueflo'ra, Lam. (Five-flowered G.) Corolla 

 t^ibular-f unnel-form , pale-blue, no folds in the sinuses, 



