930 GENTIANACEAE 
7. DASYSTEPHANA Adans. 
Annual, biennial or mainly perennial herbs. Leaves opposite: blades entire or essen- 
tially so, but the margins often more or less ciliolate-scabrous or erose. Flowers perfect, 
commonly sessile and clustered, rarely solitary and pedicelled, the whorls mainly of 5 parts 
each. Calyx persistent: lobes minute or foliaceous, smooth and glabrous or ciliolate- 
scabrous. Corolla salverform, funnelform or clavate, with neither glands at the base of the 
tube nor filaments at the base of the lobes: lobes converging, erect or spreading, accom- 
panied by plaits in the sinuses. Stamens with converging or cohering anthers. Ovary 
l-celled. Ovules numerous, mainly over the whole ovary-cavity. Capsule stipitate. The 
plants flower in summer and fall. GENTIAN. 
Calyx-lobes ciliolate-scabrous. 
Corolla open funnelform : anthers separate, often converging. 1. D. puberula. 
Corolla campanulate-funnelform or clavate: anthers coherent into a ring or tube. 
Corolla-lobes larger than the plaits, surpassing them or equalling them in length. 
Corolla-lobes much longer than the plaits: stem pubescent. 
Calyx-tube glabrous. d 
Leaf-blades rounded or subcordate at the base: corolla-plaits with 2 
unequal fimbriate lobes. 
Leaf-blades narrowed at the base: corolla-lobes with 2 equal nearly 
entire lobes. 
Calyx-tube pubescent. 
Corolla-lobes about as long as the plaits : stem glabrous. 
Corolla-lobes minute or obsolete. 
Calyx-lobes smooth and glabrous or essentially so. X 
Flowers sessile, clustered : corolla-plaits entire or 1-2-toothed. D. villosa. . 
Flower solitary, pedicelled: corolla-plaits fimbriate. . D. Porphyrio. 
1. Dasystephana pubérula (Michx.) Small. Stems 2-4.5 dm. tall, finely pubescent 
or rather puberulent : leaf-blades lanceolate to oblong-lanceolate, 2.5-4 cm. long, slightly 
revolute, sessile: calyx about 2 cm. long ; lobes linear to narrowly linear-lanceolate, about 
as long as the tube: corolla rose-purple, 3.5-4.5 cm. long, campanulate-funnelform ; lobes 
ovate, 9-12 mm. long, spreading, much larger than the cleft and laciniate plaits : capsule- 
body about 2 cm. long: seeds oblong, conspicuously winged. [Gentiana puberula Michx. ] 
In dry or stony soil, Ohio to the Northwest Territory, Georgia and Kansas. 
2. Dasystephana parvifdlia (Chapm.) Small. Stems 3-7 dm. tall, finely pubescent : 
leaf-blades ovate to lanceolate or oblong-lanceolate, 1-4.5 cm. long, rounded or subcordate at 
the base : calyx 2.5-3 cm. long ; lobes erect, linear-elliptic to almost linear, much longer than 
the glabrous tube : corolla rose-purple, 4-5 em. long, funnelform ; lobes ovate, much longer 
than the unequally cleft and fimbriate plaits: capsule-body about 2.5 cm. long : seeds con- 
spicuously winged. [Gentiana Elliothi Chapm., not Raf. G. Elliottii var. parvifolia Chapm.] 
On river banks and in ditches, Virginia to Florida. 
3. Dasystephana latifdlia (Chapm.) Small. Stems 3-5 dm. tall, finely jme 
leaf-blades oblong to broadly elliptic, or sometimes nearly linear, 2-8 cm. long, more = ess 
narrowed at the base: calyx 1.5-2.5 cm. long ; lobes spreading, linear to linear-lanceolate, 
about as long as the glabrous tube or sometimes slightly shorter or longer: corolla Wer 
purple, 4-5 cm. long, funnelform ; lobes ovate, relatively narrower and more seu i n : 
those of D. parvifolia, much longer than the nearly equally cleft and almost entire plat Zs 
capsule-body nearly 2.5 cm. long: seeds conspicuously winged. [Gentiana Elliottii var. 
latifolia Chapm. ] 
In moist soil, especially on river banks, Virginia to Florida and Alabama. f 
4. Dasystephana décora (Pollard) Small. Similar to G. latifolia in habit : -— : 
blades thinner and more decidedly acuminate : calyx less than 1.5 em. long ; lobes M 
ing, subulate to linear-subulate, shorter than the pubescent tube : corolla purple, 2. p6s ds 
long ; lobes ovate, much longer than the cleft plaits: capsule-body about 2 cm. long: 
winged. [Gentiana decora Pollard. } 
In moist soil, in mountain woods, Virginia to Georgia. blades 
5. Dasystephana Saponaria ( L.) Small. Stems 3-8 dm. tall, glabrous : ek HD "s 
lanceolate to oblong or elliptic, 2.5-7.5 em. long: calyx 1.5-2 cm. long ; lobes spa en is 
linear-spatulate, mainly slightly shorter than the glabrous tube : corolla blue or R e 
blue, 3.5-4 em. long ; lobes broad, scarcely, if at all, longer than the broad cleft an ios 
toothed plaits: capsule-body fully 1.5 em. long: seeds winged. [Gentiana Sapona 
In swamps and moist soil, Ontario to Minnesota, Florida and Louisiana. Jub 
6. Dasystephana Andréwsii (Griseb.) Small. Stems 3-6 dm. tall, seater 2 
blades lanceolate varying to linear-lanceolate or more often ovate-lanceolate, Tio odd 
em. long, acute or acuminate: calyx 1 cm. or barely 1.5 cm. long; lobes emph 
. D. parvifolia, 
D. latifolia. 
D. decora. 
. D. Saponaria. 
. D. Andrewsii. 
Cy PAV m 
