212 51. GENTIANACES. 
erect. Fl. smaller than those of the next, blue, rarely white— 
Woods and thickets. P.V. VI. Lesser Periwinkle. —E. 8.? I.? 
*2. V. major (L.); st. somewhat ascending, 1. ovate acute or 
subcordate, their margins as well as those of the elongate-subu- 
late calyx-segments ciliated. —H. B. 514.—St. at first ascending, 
afterwards prostrate and rooting, flowering shoots erect. Fi. 
large, purplish-blue.—Hedges and thickets, naturalized. P. IV. 
Greater Periwinkle. E. 8.2 1.? 
Order LI. GENTIANACEA. 
Cal. mferior, persistent. Cor. regular, 4—8-fid, hypogynous, 
marcescent ; zstivation imbricate-twisted. Stam. inserted on the 
cor., as many as the segments. Ovary of 2 carpels with the edges 
slightly inflexed or meeting. Caps. or berry many-seeded, gene- 
rally 2-valved. 
Subord. I. GENTIANEZ. Corolla twisted in estivation. 
L. opposite. 
* Style deciduous. 
Tribe I. CHLOREA. Corolla rotate. 
1. Cutora. Cal. 8-parted. Cor. nearly rotate, 8-parted. 
Stam.8. Style 1. Stigma 2—4-cleft. Caps. ]-celled, pla- 
centas on the inflexed margins of the valves. 
Tr. Il. ERYTHRAEA. Corolla funnelshaped. 
2. Eryrurma. Cal. 5-fid. Cor. funnelshaped, limb short 
5-fid. Stam. 5. Anth. erect, at length spirally twisted. 
Style simple, stigmas 2. Caps. imperfectly 2-celled from 
the inflexed margins of the valves. 
3. Cicenpr1a. Cal. 4-partite or-lobed. Cor. funnel-shaped, 
limb short 4-fid. Stam. 4. Anth. erect, not twisted. 
Stigma capitate, undivided. Caps. 1- or imperfectly 2-celled. 
** Style persistent or stigma sessile. 
Tr. II. SVWERTIE A. Style often wanting, stigma persistent. 
4. Gentrana. Cal. 4—5-cleft. Cor. funnel- or salver-shaped, 
limb 4—5-cleft. Stam.4—5. Stigmas 2. Caps. 1-celled, 
seeds on the inflexed margins of the valves. 
Subord. Il. MENYANTHIDEZ. Corolla duplicate in zsti- 
vation. L. alternate. 
5. Vinuarsia. Cal. 5-parted. Cor. rotate, thin; limb 5- 
parted, smooth on the disk, bearded or scaly at the base. 
