OP BRITISH PLANTS. 431 



Ovaries three, six, or more ; as are the styles and stigmas. Cap- 

 sule indehiseent, with one or many seeds ; embryo curved. 



1. Alisma, 164, 180. 2. Actinocarpus. 



3. Sagittaria, 344, 362. 



Order LXXX. BUTOME^. 



Perianth free, six-parted, the three inner pieces petaloid. Sta- 

 mens hypogynous. Ovaries three, six, or more, distinct or united, 

 with as many simple stigmas. Follicles several, distinct or united. 

 Seeds minute, numerous, attached to a reticulated receptacle, 

 lining the inner surface of the cell. 



1. Butomus, 191, 191. 



Order LXXXI. JUNCAGINE^E. 



Perianth uniform, herbaceous, or none. Stamens hypogynous. 

 Ovaries superior ; ovules one or two, erect, approximated at the 

 base. Pericarps indehiseent. 



1. Triglochin, 164, 179. 2. Scheuchzeria, 164, 179. 



Order LXXXH. AROIDE.E. 



Flowers mostly unisexual, arranged on a spadix. Perianth with 

 three, four, or six divisions, or none. Stamens definite and oppo- 

 site to the segments of the perianth, or numerous ; anthers ex- 

 trorse. Ovaries free, solitary or numerous, with from one to three 

 cells, and one or many seeds ; stigmas one or two. Fruit indehis- 

 eent, succulent or dry ; embryo in the axis of a fleshy albumen. 



ARINE.E. TYPHINE/E. 



1. Arum, 345, 362. 3. Typha, 343, 348. 



2. Acorus, 164, 170. 4. Sparganium, 343, 348. 



LEMNES. 

 5. Lemna, 49, 57. 



Order LXXXIII. NAIADES. 



Flowers perfect or monoecious. Perianth of two or four pieces, 

 or none. Stamens definite, hypogynous. Ovaries one or more, 

 superior ; stigma simple ; ovule solitary, pendulous. Fruit dry, 

 indehiseent, one- celled, one-seeded ; seed pendulous. 



1. Potamogeton, 96, 116. 3. Zannichellia, 343, 347. 



2. Ruppia, 96, 117. 4. Zostera, 45, 46. 



Order LXXXIV. SMILACE^:. 



Perianth with six or eight segments, regular, petaloid. Sta- 

 mens three, six, or eight, hypogynous or perigynous. Ovary free, 

 with three or four cells, which contain one, two, or many seeds ; 

 style one, stigma three-parted. Fruit a berry. Testa generally 

 membranous, albumen horny. 



1. Buscus, 366, 378. 2. ConvaUaria, 163, 170. 



3. Paris, 182, 190. 



