GENTIANACEAS. (GENTIAN FAMILY.) 
357 
linear, more than half the length of the white corolla. (S. corym- 
bdsa, Baldw.) — Wet pine barrens, N. Jersey and southward. June - 
August. 
2. S. annularis, Pursh. Stem square and 4-angled , stiff, erect, 
much branched above , the branches many-flowered ; leaves ovate-heart- 
shaped ,, clasping ; calyx-lobes lanceolate-linear, nearly half the length 
of the rose-purple (rarely white) corolla. — Dry river-banks, S. New 
York to Michigan. July. — Stem l°-2° high, bushy. Corolla showy, 
with a yellowish-green 5-rayed star in the centre. 
•*- Loosely panicled-branched ; the branches alternate or forked: pe¬ 
duncles slender , \-flowered. 
3. S. stellariS, Pursh. Stem weak, nearly round; leaves ob¬ 
long or ovate-lanceolate , the uppermost linear ; calyx-lobes very narrow , 
shorter than the corolla , which is bright purple-rose-color, with a yel¬ 
low star-like eye edged with crimson. — Brackish meadows, Plymouth, 
Massachusetts, to New Jersey and southward. July, Aug. — Flowers 
smaller than in No. 2. 
4. S* gracilis, Salisb. Stem, branches, and peduncles very 
slender , diffuse ; leaves linear , or the lowest rather oblong, the upper¬ 
most thread-form ; calyx-lobes setaceous , about the length of the corolla , 
which is nearly as in No. 3, but with a less bright eye. — Salt-marsh¬ 
es, New Jersey and southward. 
* * Corolla 7-12 parted. 
5. S. cllloroides, Pursh. Stem nearly round; loosely pani- 
cled above; the peduncles slender, 1-flowered ; leaves oblong-lance¬ 
olate ; calyx-lobes linear, half the length of the deep rose-colored (rare¬ 
ly white) corolla. — Borders of brackish ponds, Plymouth, Massachu¬ 
setts, to New Jersey and southward. July-Sept.— Stem 1°-2P high, 
slender; the very handsome (9-11-parted) flowers l^-2 f broad. 
S. calycosa, Pursh, is not known in the Northern States. 
2. ERVTIIRiFA, Pers. Centaury. 
Calyx 4 - 5-parted, the divisions slender. Corolla funnel-form 
or salver-form, with a slender tube and a 4 - 5-parted limb, which 
in withering twists on the pod. Anthers exserted, erect, twisting 
spirally. Style slender, single : stigma capitate or 2-lipped. — 
Low and small branching annuals, chiefly with rose-purple or red¬ 
dish flowers ; w T hence the name, from ipvdpos, red. (All our 
Northern species were doubtless introduced from Europe, and oc¬ 
cur only in a few localities.) 
L E, Centanrium, Pers. (Centaury.) Stem upright, co¬ 
rymb os ely branched above; leaves oblong or elliptical, acutish; the 
