xxiv GENERA. 



IV. TETEANDRIA. 



I. MONOGYNIA. 



A. Tl. of \ petal, inferior. Seed!. Globulaeie^. 



675. GLOBTJLAIIIA. Invol. tiled. Cal. tubulax. Sta. inserted in tube of corolla. FI. 

 in a head. Hue. p. 303. 



B. Fl. of 1 petal, superior. Seed 1. Cal. double. Ft. in a head. (The covering of tte 

 Seed is sometimes considered as an inferior calyx. Its border forms what is here called the 

 outer Cal.) Dipsace^. Aggregate of Linn. 



376. DIPSACUS. Invol. of many L. : the outer exceeding the inner. Recept. chafiy. 

 Outer Cal. a thickened margin ; inner a cup without awns or setas. Plant rough. L. opposite, 

 often combined. Chaff long and somewhat pungent, p. 170. 



377. CEPHALABIA. Invol. tiled ; the outer falling short of the inner. Rec. chaffy. 

 Outer Cal. with bristle-Uke teeth. Inner a denticulate cup. Chaff soft and blunt, p. 170. 



378. KNAUTIA. Invol. of many L. Rec. hirsute, not chaffy. Outer Cal. with sharp 

 teeth; inner with 8-16 subulato-setaceous teeth, p. 171. 



380. SCABIOSA. Invol. of many L. Recept. chaify. Outer Cal. with 8 depressions, 

 and a scariose, plaited margin ; inner of 5 rough, simple setas. In S. pauciseta these setas are 

 more or less deficient, p. 171. 



379. PTEBOCEPHALITS. Invol. of 2 rows. Recept. chaffy. Outer Cal. with 8 pits 

 and a short, scariose margin ; inner of about 10 feathery setas. p. 171. 



C. Fl.of\ petal, superior. Seeds 2, separate. L. simple, in whorls, {except in Putoria.) 

 372. KUBIA. Cor. campanulate. Fr. of 2 roundish berries, not crowned, p. 168. 



370. VALANTIA. Cor. campanulate. El. in threes ; the central perfect, 4-cleft ; lateral 

 barren, 3-cleft. Calyces at length united at the base, and becoming homy. p. 167. 



369. GALIUM. Cor. rotate. Fr. dry, not crowned, p. 164. 



868. ASPERULA, Cor. tubular. Er. dry, not crowned, p. 163. 



366. PUTORIA. Cor. funnel-shaped. Berry dicoccous, crowned with the calyx. Woody. 

 L. opposite. Fl. in terminal clusters, p. 163. 



367. SHERARDIA. Cor. funnel-shaped. Er. dry, crowned with the calyx. Fl. terminal. 

 Habit of Gs!imm. p. 163. 



371. CRUCIANELLA. Tube of Cor. filiform, with claw to the border. Cal. of 2 L. 

 Seeds linear, p. 167. 



D. Fl. of one petal, inferior. Seeds more than one, in a simple seed-vessel. 

 789. MAIANTHEMUM. Cal. 0. Cor. 4-partite, rotate. Er. a berry of 2 or 3 cells 

 and as many seeds. Aspaeage^. p. 363. 



555. CICENDIA. Cor. funnel-shaped. Caps, imperfectly 2-ceUed, splitting at the top. 

 Seeds many, immersed in the placentas. Anthers not twisting. Stigma cloven. Smooth, bitter 

 Herbs, with simple, entire, opposite L. Gentiane^. p. 249. 



664. CENTUWCULUS. Cor. tubular, including the smooth stamens. Caps, globose, 

 1-ceUed, circumsciss. A minute plant, with alternate L. and inconspicuous Fl. Peimulace^. 

 p. 299. 



680. PLANTAGO. Cor. bent back. Sta. very long. Caps. 2-4-ceUed, circumsciss. Fl. 

 in spiJces, each with a bract. PlantaginEjE. p. 309. 



Gentiana 4. 



