( 441 .) 
HYDRO'C HARIS* *. 
Linncan Class and Order. Dias'ciAf, Ennf.a'ndria 
Natural Order. Hydrochari'de;e, Dec. FI. Fr. v. iii. p. 265. — 
Lindl. Syn. p. 254. ; Introd. to Nat. Syst. of Bot. p. 254. — Rich, by 
Macgilliv. p. 414. — Loud. Hort. Brit. p. 536. — Mack. FI. Hibern. 
p. 272. — Hook. Brit. FI. (4th ed.) p. 425. — Hydrocharides, Juss. 
Gen. PI. p. 67. — Sm. Gram, of Bot. p. 84. — Musales; sect. Hy- 
drochariNjE; type, Hydrocharaceae ; Burn. Outl. of Bot. v. i. 
pp. 437, 464, & 465. — Palma;, Linn. 
Gen. Char. Flowers spathaceous. Sterile Flower (see fig. 1). 
Calyx (fig. 3.) in 3 deep, equal, oblong, concave segments, mem- 
branous at the edges. Corolla (see fig. 1.) of 3, roundish, undulated 
petals, much larger than the calyx, and alternate with its segments. 
Filaments (see fig. 6.) 9, awl-shaped, upright, in three rows ; the 
intermediate row producing, from its base internally, an awl-shaped 
stalk, or beak (see figs. 4 & 6.), resembling a style, stationed in the 
centre of the flower; the two other rows connected at the base, and 
adhering to the beak (see fig. 5). Anthers 2-lobed, below the 
pointed summit of each filament. Fertile Flower (see fig. 2). 
Calyx and Corolla as in the sterile flower. Gcrmen (see fig. 8.) 
inferior, roundish. Styles (see fig. 8.) 6, as long as the calyx, com- 
pressed, channelled. Stigmas cloven, acute; Capsule nearly glo- 
bular, leathery, of 6 cells. Seeds numerous, roundish, minute. 
The beaked filaments of the inner stamens of the sterile flower ; 
the 6 styles ; the inferior, 6-celled, many-seeded capsule of the 
fertile flower ; and the 3-cleft calyx, and 3-petalled corolla of both 
flowers ; will distinguish this from other genera in the same class 
and order. 
One species British. 
HYDRO'CHARIS MO'RSUS RATO. Common Frog-bit. 
Lesser Water-lily. 
Spec. Char. 
Engl. Bot. t. 808. — Curt. FI. Lond. t. 167. — FI. Dan. t. 878. — Linn. Sp. PI. p. 
I486. — Huds. FI. Angl. (2nd ed.) p. 436. — Willd. Sp. PI. v. iv. pt. II. p. 812. — Sm. 
FI. Brit. v. iii. p. 1084.; Engl. FI. v. iv. p. 250. — With. (7th edit.) v. ii. p. 515. — 
Lindl. Syn. p. 204. — Ilook. Brit. FI. p. 438. — Macr. Man. Brit. Bot. p. 221. — 
Lightf. FI. Scot. v. ii. p. 622.— Sihth. FI. Oxon. p. 135.— Abb. FI. Bodf. p. 216.— 
Rclh. FI. Cant. (3rd edit.) p. 411. — Purt. Midi. FI. v. iii. p. 78. — Hook. FI. Scot. 
p.290.— Orev. FI. Edin. p. 211.— FI. Devon, pp. 161, & 130.— Winch’s FI. of 
Norlhumb. and Durli. p. 65. — Walker’s FI. ofOxf. p. 299. — Irv. Lond. FI. p. 109. — 
Cow. FI. Guide, p. 34. — Baines’ Yorksh. FI. p. 99. — Leight. FI. of Shropsh. p. 496. — 
Mack. Catal. of PI. of Irel. p. 86. ; FI. Hibern. p. 273. — Hydrocharis asarifolia, 
Gray’s Nat. Arr. v. ii. p. 220. — Stratiotes foliis Asari, semine rotundo, Ray’s 
Syn. p. 290. — Morsus Ranee, Johnson’s Gerarde, p. 818. 
Localities. — In watery ditches, ponds, and slow streams ; frequent in England; 
more rare in Scotland. 
Fig. 1. Sterile Flower. — Fig. 2. Fertile Flower. — Fig. 3. Calyx. — Fig. 4. A 
separate Stamen. — Fig. 5. Ditto. — Fig. 6. Stamens. — Fig. 7. Rudiment of a Ger- 
men in the Sterile Flower. — Fig. 8. Gcrmen of Fertile Flower. 
* From udor, Gr. water ; and c/taro, Gr. to rejoice ; from the beauty of its 
leaves and flowers embellishing the waters, 
t See folio 143, note +. 
| See folio 34, note -f. 
