31. CUCXJRBITACEJ5.— 32. PORTULACE^. 121 



Order XXXI. CUCURBITACE^. 



Cal. 5-toothed, tube adnate with the ovary. Cor. 5-cleft, 

 often scarcely distinguishable from the calyx, reticulated with 

 veins. Stam. 5, more or less cohering. Auth. sinuose. Ovary 

 3 — 5-celled or spuriously 1 -celled ; placentas parietal. Style 

 short. Stigmas lobed. Fr. more or less succulent. Seeds flat, 

 in an arillus ; embryo flat ; albumen 0. — Plants succulent, 

 climbing with extra-axillary tendrils. Often monoecious or 

 dioecious. 



1. Bryonia. Cal. 5-toothed. Cor. 5-cleft. Male : Stam. 5, 

 in 3 bundles. Fem : Style 3-fid. Fruit a globose few-seeded 

 beiTy. Seeds oval, compressed, more or less bordered. 



1. Bryonia iwiw. Red Bryony. 



1. B. dioica (L.); 1. palmate 5-lobed dentate rough on both 

 sides with callous points, fl. dioecious, cal. of the fertile fl. half as 

 long as the corolla. — E. B. 439. — St. climbing. Tendrils simple. 

 Fr. red. — [B. alba (L.) has the fertile cal. as long as the ccr. 

 and black fruit. It is said to be monoecious.] — Hedges and 

 thickets. P. v.— IX. E. 



Order XXXII. PORTULACE.E. 



Sep. 2, rarely 3 or 5, cohering at the base ; aestivation imbri- 

 cate. Pet. usually 5, from the base of the calyx. Stam. inde- 

 finite, inserted with the petals, often opposite to the petals ; fila- 

 ments distinct. Ovary 1-celled. Style 0. Stigmas several. Caps, 

 opening transversely or by 3 valves ; placenta central. Embryo 

 curved round the albumen. 



1. Montia. Cal. of 2 sepals, persistent. Cor. 5-parted, with 

 3 segments smaller than the others, tube split to the base in 

 front. Stam. 3, inserted in the throat and opposite to the 

 smaller segments of the corolla. Ovary turbinate. Style 

 very short. Stigmas 3. Caps. 3-valved, 3-seeded. 



1. Montia Linn. 



1. M.fontana (L.).— E. -B. 1206. St. 11. 1.— L. opposite, spa- 

 thulate, entire. Valves of the caps, rolled longitudinally inwards 

 after the seeds have fallen. —a. M. minor (Gm.); st. short ascend- 

 ing rigid, ped. axillary and terminal, seeds reticulate-scabrous. — 

 j3. M. rivularis (Gm.) ; st. flaccid ascending, ped. axillary, seeds 

 reticulate.— Watery places. ^. in water. A. IV.— VIII. 



