Vor. II.J GENTIAN FAMILY. 613 
% Corolla without plaits or teeth in the sinuses. 
Corolla-lobes fringed; =rrate; flowers 1’~3' long. 
Corolla enclosed/ _1€ swollen wing-angled calyx. . 1. G. ventricosa. 
Corolla conspicw __y longer than the wingless calyx. 
Corolla-lobe aged all around their summits; leaves lanceolate. 2. G. crinita, 
Corolla-lobes ft.nged mainly on the margins; leaves linear. 3. G. detonsa. 
Corolla-lobes with entire or rarely denticulate margins; flowers 6''-12'’ long. 
Corolla-lobes fimbriate-crested at the base, acute. 4. G. acuta, 
Corolla-lobes naked, subulate-acuminate. 
Calyx-lobes unequal; flowers mostly 4-parted. 5. G. propinqua. 
Calyx-lobes equal; flowers 5-parted. 6. G. quinquefolia. 
% % Corolla with membranous toothed or lobed plaits in the sinuses. 
Margins of leaves and calyx-lobes scabrous or ciliate; seeds winged. 
Anthers separate, or merely connivent. 
Stems usually clustered; calyx-lobes unequal; corolla narrowly funnelform. 7. G. affinis. 
Stems mostly solitary; calyx-lobes equal; corolla campanulate-funnelform. 8, G. puberula. 
Anthers cohering in a ring or short tube. 
Corolla-lobes distinct, longer than or equalling the plaits. 
Flowers 1-4; corolla campanulate-funnelform, its lobes 2-3 times as long as the plaits. 
9g. G. Llliottit, 
Flowers several or numerous; corolla club-shaped, its lobes not much longer than the 
plaits. 10. G. Saponaria. 
Corolla-lobes none or minute, the plaits very broad. 11. G. Andrewsit. 
Margins of leaves and calyx-lobes smooth or nearly so. 
Flowers clustered, sessile, 2-bracteolate under the calyx. 
Corolla-lobes ovate, twice as long as the plaits; leaves broad, acuminate; seeds winged. 
‘ 12. G. flavida. 
Corolla-lobes rounded, little longer than the plaits; leaves narrow; seeds winged. 
13. G. linearis. 
Corolla-lobes ovate, acute, much longer than the broad plaits; leaves broad; seeds winged. 
14. G. rubricaulis. 
Corolla-lobes triangular-lanceolate; leaves obovate; seeds wingless. 15. G. villosa. 
Flowers solitary, peduncled, not bracteolate; leaves linear. 16. G. Porphyrio. 
1. Gentiana ventricosa Griseb. Swollen 
Gentian. (Fig. 2866.) 
Gentiana ventricosa Griseb. in Hook. Fl. Bor. Am. 2: 65. 
pl. 152. 1834. 
Annual; stem strict, terete, branched above, about 
1° high. Basal leaves obovate, small, those of the 
stem ovate-oblong, obtuse or acute at the apex, rounded 
/ or subcordate at the base, 1/ long, 4/’-6’” wide; flowers 
few, solitary at the ends of stout peduncles, 4-parted; 
calyx inflated, ovoid, about 9/” high, 4’/-5’” thick, 
wing-angled, enclosing the corolla; corolla-lobes ob- 
long, obtuse, lacerate-serrate; ovary elliptic-oblong. 
Grand Rapids of Saskatchewan, between Cumberland 
House and Hudson Bay (Drummond). Not recently 
collected. Ne ~ 
2. Gentiana crinita Froel. Fringed 
Gentian. (Fig. 2867.) 
Gentiana crinila Froel, Gen. 112. 1796. 
Annual; stem leafy, usually branched, 1°-3° 
high, the branches erect, somewhat 4-angled. 
Basal and lower leaves obovate, obtuse, the 
upper lanceolate or oblong-lanceolate, 1/—2/ 
long, acute or acuminate at the apex, sessile 
by a rounded or subcordate base; flowers 
mostly 4-parted, several or numerous, about 
2’ high, solitary at the ends of the usu- 
ally elongated peduncles; calyx-lobes lan- 
ceolate, acuminate, their midribs decurrent 
on the angles of the tube; corolla bright blue, 
rarely white, narrowly campanulate, its lobes 
obovate, rounded, conspicuously fringed all 
around their summits, scarcely fringed on the 
sides, spreading when mature; capsule spindle-shaped, stipitate; seeds scaly-hispid. 
In moist woods and meadows, Quebec to Minnesota, south to Georgia and Iowa. Sept.—Oct. 
