444 GENTIANACE.E GENTIANA 



ly with a membranous or spatbaceous tube. Corolla funnelform 

 or campanulate to salverform or r tate, without pits large glands 

 or scales ; the sinuses with or without pleats or appendages. 

 Stamens as many as lobes of the corolla and inserted on its tube, 

 included: anthers connate into a tube or separate, remaining 

 straight after opening. Style very short or none : stigma of two 

 spreading or rarely united lamella, persistent. Seeds very 

 numerous, often Covering the whole inner walls of the thin 

 2-valved capsule. 



1 GENTTANELLA Gray Syn. Fl. ii, 116. Corolla without 

 extended pleats or lobes or teeth at the sinuses. Anthers usually 

 versatile. Stigmas distinct or only causually united. 



* Flowers large or middle sized, solitary on a naked peduncle ter- 

 minating the stem or branches, not bracteate at base, mostly 4-mer- 

 ous: corolla campanulate-funnelform, its lobes usually fimbriate or 

 or erose, not crowned: a row of glands alternating with V e base of 

 the filaments. 



0. serrata var. holopetala Gray Bot. Cal. i, 481. Slender, 2-16 

 inches high, with comparatively long peduncles : leaves linear or lanceolate- 

 linear: calyx-lobes ovate-acuminate, acutely carinate, the 2 exterior longer 

 and narrower than the others: corolla an inch or more long, its oblong 

 lobes entire or merely erose-denticulate around the summit : capsule short- 

 stipitate : seeds squamulose-roughened. In the high Sierra Nevada Moun- 

 tains and northward to Oregon. 



G. simplex Gray Pacif. R. Rep. v, 87, t. 16. Stem 2-10 inches high, 

 simple, bearing 2-4 pairs of lanceolate or linear-oblong leaves 3-9 lines 

 long, and a single blue flower on a slender peduncle: calyx-tube and lobes 

 hardly at all angled or carinate; the lobes nearly equal and similar : corolla 

 an inch long, its oblong -spatulate lobes entire or erose-dentate, and some- 

 times a fringe of a few bristly teeth low down on the sides: capsule raised 

 on a short stipe : seeds smooth but longitudinally striate, narrow, wingless 

 when mature except a cellular appendage at both ends. Higher parts of 

 the Cascade and Sierra Nevada mountains. 



* * Flowers small, 4-5-merous: corolla somewhat funnelform or 

 salverform when expanded, the lobes entire. 



O. tenella Rottb. Act. Hafn. x, 436, t. 2, fig. 6. " An inch to a span 

 high : leaves (2 to 6 lines 5 long) oblong or the lowest spatulate : calyx deeply 

 5- ( sometimes 4-) parted; the lobes foliaceous, oblong to ovate, usually 

 unequal: corolla 2}^ to 4 lines long, double the length of the calyx (more 

 lengthened in fruit), blue; its lobes ovate-oblong, rather obtuse, little 

 shorter than the tube : fimbriate crown conspicuous at the throat." High 

 mountain summits, Idaho to the Rocky Mountains. 



G acuta Michx. Fl. i, 177. G. Amarella var. acuta Herder. Stem 

 leafy, slightly wing-angled, simple or branched, 6-20 inches high: lower 

 leaves obovate to spatulate, obtuse, the upper lanceolate, acute or acumin- 

 ate at the apex, rounded or subcordate at base, sessile or somewhat clasp- 

 ing, 6-24 lines long: flowers numerous, racernose-spicate, 5-8 lines high: 

 pedicels 2-6 lines long,leafy-bracted at base: calyx usually almost 5-parted, 

 its lobes lanceolate or linear, equal or one or two of them longer: corolla 

 longer than the calyx, usually blue, its lobes oblong, acute or becoming 

 obtuse: crown in the throat of few setae: capsule sessile. In the high 

 mountains California to Alaska and across the Continent. 



