350 GENTIANACEvE. (GENTIAN FAMILY.) 



# # Flowers smaller, 4-5-werous; corolla somewhat funnel -form or salver-form, 



its lobes entire : peduncles short or none, terminal and lateral on the acute- 

 angled stem. 



3. G. Amarella, L. Stems 2 - 20' high ; leaves lanceolate to narrowly 

 oblong, or the lowest obovate-spatulate, the margins minutely scabrous ; calyx- 

 lobes (4 - 5) f oliaceous, lanceolate or linear ; corolla mostly blue, \' long or 

 more, with afimbriate crown at the base of the oblong acute lobes ; capsule sessile. 

 Var. aciita, Hook. f. Calyx almost 5-parted ; crown usually of fewer and 

 sometimes very few setae. Lab. to N. Vt. and N. Minn., west and northward. 



4. G. quinqueflora. Lam. Stem rather slender, branching (1-2 

 high) ; leaves ovate-lanceolate from a partly clasping and heart-shaped base, 

 3 - 7-nerved, tipped with a minute point ; branches racemed or panicled, about 

 5-flowered at the summit ; lobes of the small 5-cleft calyx awl-shaped-linear ; 

 corolla pale blue, 6 - 9" long, its lobes triangular-ovate, bristle-pointed, without 

 crown, but the glands at the base of the slender obconical tube manifest ; capsule 

 stipitate. Moist hills, Maine to Ont., 111., and south along the mountains to 

 Fla. Var. OCCIDENTALIS, Gray. Sometimes 2-3 high, and paniculately 

 much-branched ; calyx-lobes more leaf-like, linear-lanceolate, reaching to the 

 middle of the broader funnel-form corolla. Va. and Ohio to Minn., south to 

 Tenn. and La. 



2. PNEUMONANTHE. Corolla (funnel-form or salver-form) with thin- 

 membranaceous toothed or lobed plaits in the sinuses ; no crown nor glands , 

 capsule stipitate ; autumn-flowering perennials, the flowers large, sessile or 

 short pedunculate and bibracteate (except in n. 12). 



# Anthers unconnected or soon separate; leaves rough-margined; seeds winged. 



5. G. affinis, Griseb. Stems clustered, 1 high or less-, leaves oblong 

 or lanceolate to linear ; flowers numerous and thyrsold-racemose or few or rarely 

 almost solitary ; calyx-lobes unequal, the longest rarely equalling the tube, the 

 shortest sometimes minute; corolla (blue or bluish) Y long or less, rather 

 narrowly funnel-form f with ovate spreading lobes, the plaits with conspicuous 

 laciniate appendages sometimes equalling the lobes. Minn, to the Pacific. 



6. G. pub(rula, Michx. Stems (mostly solitary) erect or ascending 

 (8 - 16' high), mostly rough and minutely pubescent above leaves rigid, linear- 

 lanceolate to oblong-lanceolate (1-2' long) ; flowers clustered, rarely solitary . 

 calyx-lobes lanceolate, much shorter than the bell -funnel -form open bright-blue 

 corolla, the spreading ovate lobes of which are twice or thrice the length of the 

 cut-toothed appendages. Dry prairies and barrens, western N. Y., Ohio, and 

 Ky., to Minn, and Kan. Oct. 



# * Anthers cohering in a ring or short tube ; flowers in terminal and often axil- 



lary clusters. 



i- Calyx-lobes and bracts ciliolate-scabrous ; seeds conspicuously winged', leaves 

 rough-margined. 



7. G. Saponaria, L. (SOAPWORT G.) Stem erect or ascending, smooth , 

 leaves ovate-lanceolate, oblong, or lanceolate-obovate, narrowed at the base ; 

 calyx-lobes linear or spatulate, acute, equalling or exceeding the tube, half the 

 length of the corolla ; lobes of the club-bell-shaped light-blue corolla obtuse, 



