CHIOEA. EETTHBiEA. 



231 



Stam. 8. Style!. Stigma 2— 4-cleft. Ca,ps. 1-celled; pla- 

 centas on the inflexed margin of the valves. 



Tr. II. EHYTBItJEEJE. CoroHa fannelshaped. 



2. Eeythe^a. Gal. 5-fid. Cor. funnelshaped, limb short 

 5-fid. Stam. 6. Anth. erect, at length spirally twisted. 

 Style simple ; stigmas 2. Caps, imperfectly 2-ceUed from 

 the inflexed margins of the valves. 



■J. CiCBNDiA. Cal. 4-partite or lohed. Cor. funnelshaped, 

 limb short 4-fid. Stam. 4. Anth. erect, not twisted. 

 Stigma capitate, undivided. Caps. 1- or imperfectly 2-ceIled. 



** Styh peirsistent or stiff ma sessile. 



Tr. III. S WBR TIE^. Style often wanting, stigma persistent. 



'4. Gentiana. Cal. 4 — 5-cleft. Cor. funnel- or salver-shaped, 

 limb 4 — 5-cleft. Stam. 4 — 5. Stigmas 2. Caps, l-celled, 

 seeds on the inflexed margins of the valves. 



Subord. II. MENYANTHIDE.E. Corolla induplicate in the 

 bud. L. alternate. 



6. ViLLAKSiA. Cal. 5-parted. Cor. rotate, thin; limb 5- 



Earted, smooth on the disk, hairy or scaly at the base within, 

 tam. 5. Stigma with 2 toothed lobes. Caps, l-celled, 

 not bursting. — L. simple. 



6. Mjenyanthes. OaL 6-parted. Cor. funnelshaped, flfeshy ; 

 limb 5-parted, hairy within. Stam. 5. Stigma capitate, 

 notched. Caps, l-celled, 2-valved ; valves bearing the seeds 

 along their middle. — L. temate. 



Suborder I. Gentianece. Tribe I. Chlorea- 



1. Chxo'ka Linn. Yellow-'wort. 



1. C. perfolidta (L.) ; lowermost 1. eUiptic-oblong narrowed 

 below, stem-l. broadly connate, st. perfoliate. — R. xvii. 1060: — 

 St. 12 — 18 in. high, simple. Stem-1. triangxilar-ovate, con- 

 nected by their whole breadth in rather distant pairs, glaucous. 

 Panicle forked, many7flowered. Cal. divided to its base into 

 linear-subulate segments. Cor. bright yellow. Stigm?:^ yellow. 

 — Damp chalky places. A. VII. — IX. E. I. 



Tribe II. Erythrceece. 



2. EKTTHE.a;'A Benealm. Centaury. 



1. E. pulehel'la (Pries) ; st. much branched acutely qua- 

 drangular, 1. ovate the uppermost oblong-lanceolate, A. aii 



