148 31. CFCUEBITACEJE. 32. PORTULACEJE. 



spike. E. B. S. 2854. L. 3 or 4 in a whorl, submersed. Ponds 

 and ditches. P. V. VIII. E. S. I. 



2. HIPPTJ'RLS Linn. Mare's-tail. 



1. H. vulgdris (L.) j 1. linear 6 12 in a whorl with a hard 

 point. E. B. 763. St. 44. 1. St. simple, or sometimes branch- 

 ing at the base, erect. Fl. in the axil of each of the upper 

 leaves, often without stamens. In deep water the submersed 

 leaves are long flaccid pellucid and not hard at the end ; in 

 running water often wholly submersed flaccid and barren. 

 In stagnant water and slow streams. P. VI. VIL E. S. I. 



Order XXXI, CUCURBITACE^E. 



Gal. 5-toothed, tube adnate to the ovary. Cor. 5-cleft, 

 often scarcely distinguishable from the calyx, netted with veins. 

 Stam. 5, more or less cohering. Anth. sinuous. Ovary 35- 

 celled or spuriously 1-celled ; placentas parietal. Style short. 

 Stigmas lobed. Fr. more or less succulent. Seeds flat, in an 

 aril ; embryo flat ; albumen 0. Succulent, climbing with extra- 

 axillary tendrils ; often monoecious or dioecious. JStip. 0. 



1. BRYONIA. Cal. 5-toothed. Cor. 5-cleft. Male : Stam. 5 

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

 seeded berry. Seeds oval, compressed, more or less bor- 

 dered. 



1. BRYO'NIA Linn. Red Bryony. 



1. B. dioi'ca (Jacq.) ; 1. palmate 5-lobed dentate rough on 

 both sides with hard points, fl. dioecious, cal. of the fertile fl. 

 half as long as the corolla. Sy. E. B. 517. St. climbing. Ten- 

 drils simple. Fr. red. [B. alba (L.) has the fertile cal. as long 

 as the cor. 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 ; imbricate in the 

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

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

 filaments distinct. Ovary 1-celled. Style 0. Stigmas several. 

 Caps, opening transversely or by 3 valves ; placenta central. 

 Embryo curved round the albumen. Stip. scarious. 



