444 : GENTIANACE 4 GENTIANA 
ly with a membranous or spathaceous 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 lamelle, persistent. Seeds very 
numerous, often covering the whole inner walls of the thin 
2-valved capsule. 
§ 1 GENTIANELLA Gray Syn. FI. 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 t' e base of 
the filaments. 
G. serrata var. holopetala Gray Bot. Cal. i, 481. Slender, 2-16 
inches high, with comparatively long peduncles: leaves linear or Janceolate- 
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. 
G. tenella Rottb. Act. Hafn. x, 486, t. 2, fig.6. ‘‘ An inch to aspan 
high: leaves (2 to 6 lines long) oblong or the lowest spatulate: calyx deeply 
5-( sometimes 4-) parted; the lobes foliaceous, oblong to ovate,: usually 
unequal: corolla 244 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, racemose-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. 
