GENTIANACE.E. 



t. 60. Smith Eng. Fl ii. 218. Gentiana perfoliata'ZzVm. sp. pi. 

 335. Chalky hills and banks in various parts of Europe. 



Root of a few twisted fibres. Stem )12 or 18 inches high, erect, 

 round, leafy, unbranched, terminating in an upright, leafy, repeatedly 

 forked panicle, of many elegant, bright yellow, scentless flowers, open in 

 sunshine only, with scarlet stigmas. Leaves ovate, acute, combined and 

 perfoliate. The whole herb is very glaucous, subject to mildew. Its 

 qualities similar to those of Gentiana and Erythraea, but weaker. Smith. 



SABBATIA. 



Calyx' 5-1 2-parted. Corolla rotate, 5-12-parted, withering on 

 the capsule. Anthers at length revolute. Stigma with 2 arms 

 which become spirally twisted. Capsule 1 -celled, with the valves 

 a little turned inwards. 



1101. S. angularis Pursh.fi. am. sept. \. 137. Elliott. Bot. 

 i. 285. Bigelow. med. bot. iii. t. 57. Torreyfl. i. 218. Chi- 

 ronia angularis Mich. Jt. am. bor. i. 146. Damp rich soils in 

 the United States. Common in moist meadows, among high 

 grass. 



Height from 1 to 2 feet. Stem erect, smooth, square, with the angles 

 winged. Branches axillary, opposite. Leaves opposite, ovate, but 

 variable in length and width, heart-shaped at base, clasping half the 

 stem, 5-nerved, smooth, acute. Flowers terminal, forming a large 

 corymb. Tube of the calyx angular, with 5 broad segments. Corolla 

 5-parted with oval segments twice as long as the calyx. Anthers ob- 

 long, and slightly recurved at the tune when the flower first opens. 

 After shedding their pollen they become revolute and curl up. Ovary 

 ovate ; style longer than the stamens, declined ; stigma 2-parted, the 

 segments separate at first, but gradually becoming twisted spirally to- 

 gether. Capsule 1-celled, 2-valved. One of the most pure and simple 

 bitters. Extensively employed in North America in both intermittent 

 and remittent fevers. 



S. gracilis Pursh. and others are said by Bigelow to be equally 

 efficacious. 



LISIANTHUS. 



Calyx campanulate, 5-cleft ; the segments erect, thinner and 

 more membranous at the edges. Corolla funnel-shaped, the 

 tube unequal or ventricose on one side ; limb 5-cleft, naked at the 

 throat, withering. Anthers generally revolute when dry. Stigma 

 bilamellate. Capsule 2-valved ; the edges of the valves bearing 

 the placentae and inflexed ; 2-celled, many-seeded. Martius. 



1102. L. pendulus Martins n. g. and sp. ii. 94. t. 172. 

 Subalpine mountains of Brazil, near Villa Rica and S. Joao d'el 

 Rey in the province of the mines. 



An annual. Stem simple, erect, 1J foot high or more, square at the 

 bottom, round at the top. Leaves in 4, 5, or 6 pairs, oblong, rather 

 acute, the lowest the shortest, and somewhat decurrent, with 3-5 

 vanishing ribs. Flowers 2 or 3, terminal, on long graceful nodding 



522 



