52. poLEMONrAcaa;. — 53. coktoltulace^. 237 



[SWUjR'TIA peren'nis (L.), which has 2 curious fringed 

 glands at the base of each cor.-segm. (E. B. 1441), was formerly 

 reported from Wales.] 



Suborder II. Menyanthea. 



5. Limnan'themtim: Gm. 



1. L. nymphteoXdes (Link) ; 1. roundly heartshaped floating- 

 wavy at the edges, ped. clustered 1-fl., cor. ciliate. — Villarsia 

 Vent. E. B. 217. It. xvii. 1042.— Floating. St. long, round, 

 branched. L. resembling those of Nymphcea alba, but, much 

 smaller. Fl. yellow. Caps, sometimes 3-Talved. — Still places 

 in rivers, rare. P. VII. Vlll. E. 



6. Mentan'thes Linn. Buckbean. 



1. M. tnfoliata (L.). — E. B. 495. — St. ascending, round, leafy. 

 L. temate. Leaflets equal, obovate, wavy. Raceme long- 

 stalked, opposite to a leaf^ many-flowered. Cor. flesh-coloured, 

 densely fringed -ndthin. — Boggy places. P. V. — VII. E. S. I. 



Order LIT. POLEMONIACE^. 



Cal. inferior, 5-parted, persistent. Cor. hj-pogynous, regular, 

 5-lobed. Stam. 5, unequal, on the tube of the corolla. Ovary 

 3-celled. Stigmas 3-fid. Caps. 3-ceIled, 3-valved ; valves 

 separating at the axis. — xSo stipules. 



1. PoLEMONiUM. Cal. 5-fid. Cor. rotate, vrith a short tube 

 and 5-lobed limb ; throat neaily closed by the dilated bases 

 of the filaments. 



1. Polemo'nitim Linn. Jacob's Ladder. 



1. P. caruleum (L.) ; st. angular, 1. glabrous pinnate, leaflets 

 ovate-lanceolate pointed, panicle downy glandular. — E. B. 14. 

 — St. 1 — 2 feet high, simple, hollow. L. alternate, leaflets 

 many. Fl. many, somewhat drooping, bright blue or white. — 

 Bushy hilly places, rare. P. VII. E. S. 



Order LIII. CONVOLVLLACE.^. 



Cal. inferior, of 6 persistent imbricate often unequal sepals. 

 Cor. hypogynoiis, regular, plaited, deciduous. Stam. 4 — 5, from 

 near the base of the corolla. Ovary of 2 — 4 cells, few-seeded, 

 surroimded by an annular hj'pogynous disk. Style 1, rarely 2. 



