358 
GENTIAN ACE J2. (GENTIAN FAMILY.) 
uppermost linear; cymes clustered, flat-topped, the flowers all nearly 
sessile ; tube of the (purple-rose-colored) corolla less than twice the 
length of the oval lobes.—Oswego, New York, naturalized near the 
old fort. July. — Plant 6' - 12' high : corolla 3" - 4" long. 
ramosissima, Pers., var. pulchella, Griseb. Low 
(^ , hi S h ) * s ^ em many times forked above and forming a diffuse 
cyme ; leaves ovate-oblong or oval; flowers all on short pedicels; tube 
of the (pink-purple) corolla thrice the length of the elliptical-oblong 
o es. (E. Muhlenbergii, Griseb., as to Penn, plant. Exacum pul- 
2, ellum, Pursh .) — Wet or shady places, Flushing, Long Island, 
enn. and southward : certainly introduced, rare. —Flowers smaller 
than in No. 1. 
• E. spicata, Pers. Stem strictly upright; the flowers ses- 
f 1 e and spiked along one side of the simple or rarely forked branches; 
eaves oval and oblong, rounded at the base, acutish; tube of the 
(rose-colored or whitish) corolla scarcely longer than the calyx, the 
o es oblong. (E. Pickermgii, Oakes .)—Sandy shore, Nantucket, 
a-es Plant 6'-10'high, remarkable for the spike-like arrange¬ 
ment of the flowers. 
3. BART6^IA, Muhl. (Centaurella, im 
Calyx 4-parted. Corolla deeply 4-cleft, destitute of glancu 
fringes, or folds. Stamens short. Pod oblong, pointed with a 
large persistent at length 2-lobed stigma. Seeds minute. - Small 
annuals, or biennials, with thread-like stems and little awl-shaped 
greenish scales in place of leaves. Flowers small, yellowish- 
white, peduncled. (Dedicated, in the year 1801, to the late Prof 
Barton, of Philadelphia.) 
* tenella, Muhl. Stems (3'-10' high), branched above; 
ranches or peduncles mostly opposite, 1 - 3-flowered; lobes of 
w . a ° on 8> acu tish ; anthers roundish; style none. — Open 
times r ° mm0n : Petals rather longer than the calyx, or some- 
wifh 106 ° n ^ Centaurella Moseri, Griseb., is only a variety 
ie scales and peduncles mostly alternate, and the petals acute. 
4. GEIYTIANA, L. Gentian. 
Calyx 4 - 5-cleft. Corolla 4 - 5-lobed, regular, usually with in¬ 
termediate plaited folds which bear appendages at the sinuses. 
ty e short or none : stigmas 2, persistent. Pod oblong, 2 -valved, 
many-seeded. — Flowers solitary or cymose, showy. (Name 
rom entius, king of Illyria, who used some species medicinally*) 
§1* AmarelloIdes, Torr. & Gr.— Corolla tubular funnel-form, with' 
