31, CUCURBITACES. 117 
pinuatifid or (C. pectinatum DC.) pectinate.— Ponds and ditches, 
rare. P. VII. VIII. 
2. M. spicatum (L.); fl. whorled forming a leafless spike, bracts 
small entire, spike erect when in bud.—£. B. 83.—L. 4 in a 
whorl, submersed, lower bracts often pectinate—Ponds and 
ditches. P. VI. VII. 
3. M. alterniflorum (DC.); sterile fl. alternate about 6 form- 
ing a leafless spike, spike nodding when in bud afterwards erect, 
fertile fl. about 3 together in axillary whorls at the base of the 
spike.—E. B. S. 2854.—L. 3 or 4 in a whorl, submersed.— 
Ponds and ditches. P. VII. VIII. E. 8. 
2. Hirruris Linn. Mare’s Tail. 
1. H. vulgaris (L.); 1. lmear 6—12 in a whorl with a callous 
point.—H. B. 763. St. 44, 1.—St. simple, or sometimes branch- 
mg at the base, erect. Fl. in the axil of each of the upper leaves, 
often without stamens. In deep water the submersed leaves are 
elongated flaccid pellucid and not callous at the end.—In stag- 
nant water and slow streams. P. VI. VII. 
Order XXXI. CUCURBITACEA. 
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. Anth. 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 moncecious or dicecious. 
1. Bryonta. Cal. 5-toothed. Cor. 5-cleft. Male. Stam. 5 
in 3 bundles. Fem. Style3-fid. Fruit a globose few-seeded 
berry. Seeds oval, compressed, more or less bordered. 
1. Bryonra Linn. Red Bryony. 
1. B. dioica (L.); 1. palmate 5-lobed dentate rough on both 
sides with callous points, fl. dicecious, 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 cor. 
and black fruit. It is said to be moneecious.|—Hedges and 
thickets. P. V.—IX. E. 
