240 51. GENTIASTACaa!. 



short, 4 — 6-fid. Stam. 4 — 5. Anth. erect, at length spirally 

 twisted. Style simple ; stigmas 2. Caps, imperfectly 2- 

 celled from the inflexed mai-gins of the valves. 



3. CiCBNDiA. Oal. 4-partite or lohed. Cor. salver-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. III. SWEETIEJE. Style often wanting, stigma persistent. 



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

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

 l-celled, seeds on the inflexed margins of the valves. 



Subord. II. MENYANTHE^. Corolla induplicate in the 

 bud. L. alternate, or opposite to the fl.-stems. 



5. LiMNANTHBMUM. Cal. 5-parted. Cor. rotate, thin ; limb 

 6-parted, smooth on the disk, hairy or scaly at the base 



J, within. Stam. 5. Stigma with two toothed lobes. Caps. 

 1-ceUed, not bursting. — L. simple, floating. 



6. Mbnyanthbs. Cal. 5-parted. Cor. funnelshaped, fleshy ; 

 limb 5-part6d hairy within. Stam. 5. Stigma capitate, 

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

 seeds along their middle. — L. ternate. 



Suborder I. Genfianece. Tribe I. Chlorecs. 

 1. Chlo'ea Linn. Yellow wort. 



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

 below, stem-1. broadly connate, st. perfoliate. — E. B. 60. M. 

 xvii. 1060. — St. 12 — 18 in. high, simple. Stem-1. triangular- 

 ovate, connected by their whole breadth in rather distant pairs, 

 glaucous. Panicle forked, many-flowered. Cal. divided to 

 its base into linear-subulate segments. Cor. bright yellow. 

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



Tribe II. Erythrceea. 



2. ERYTHKiE'A Renealm. Centaury. 

 * Stamens from top of cor.-iube. 



1. E. pulchd'la (Fries) ; st. much branched acutely qua- 

 drangular, 1. ovate the uppermost oblong lanceolate, fl. all 



