79. IIYDROCHARIDK.E. 
30') 
the base of the segments of the j)erianth. Anth. bursting in- 
wards. Ovary inferior, 3-celled. Ovules 2 in eacli cell, erect. 
Style 1. Stigmas 3, rcHexed. Fr. baccate, not bursting. Embryo 
minute, quite inclosed in the albumen. 
1. Tam us. Perianth bellshapcd, limb 6-parted. Male with 
() stamens. Fern, with the perigone adhering to the ovary 
and persistent. Stain, very short, abortive. 
1. Tamus Black Bryony. 
1. T. communis (L.); 1. undivided cordate acute. — E.B.91 . — 
Diircious. Root large, thick, fleshy. St. very long, twining. 
Racemes a.villary, on long stalks. FI. yellowish-green, regular, 
small. Berry red. — Hedges and thickets. P. V. VI. E. 
Subclass II. ENDOGENS. 
Leaves parallel-veined, persistent. Root resembling the 
stem internally. 
Subdivision I. FLORIDiE. 
Floral envelopes whorled. 
Order LXXIX. IIYDROCHARIDE^. 
Sep. 3, herbaceous. Pet. 3, regular, coloured. Stam. ejiigy- 
nous. Ovary solitary, inferior; placentas parietal, sometimes 
projecting into the centre of the ovary. Stigmas 3 — 6. Fr. (h’y, 
or succulent, not bursting, 1- or spuriously many-celled. Seeds 
numerous. Albumen 0. Embryo straight, cyhuch’ical. Radicle 
at the opposite end from the hilum. 
1. IIydroch.aris. Dicceious. Cal. .3-parted. Pet. 3. Male 
with 9 — 12 stamens in 3 rows surrounding 3 abortive styles. 
Fern, with 3 abortive filaments and 3 fleshy scales surround- 
ing the 6 deeply bifid styles. Caps, inferior, 6-celled, many- 
seeded. 
2. Stratiotes. Dicecious. Cal. 3-parted. Pet. 3. Male 
with 12 or more stamens surrounded by numerous abortive 
ones. Fern, with 6 deeply bifid styles. Berry inferior, 6- 
celled, many-seeded. 
1. IIydrocharis Frog-bit. 
1. H. Mor.sus-ranee (L.). — E. B. 808. St. 44. 16. R. 112. — • 
Floating. Creeping. L. stalked, roundish-reniform, entire. FI. 
white, delicate, springing from a pellucid membranous sheath. 
