OF BRITISH PLANTS. 431 



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

 indehiscent, with one or many seeds ; embryo curved. 



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



3. Sagittaria, 344, 362. 



Order LXXX. BUTOME^E. 



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. JUNCAGINEJ2. 



Perianth uniform, herbaceous, or none. Stamens hypogynous. Ova- 

 ries superior; ovules one or two, erect, approximated at the base. 

 Pericarps indehiscent. 



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



Order LXXXII. AROIDEJE. 



Flowers mostly unisexual, arranged on a spadix. Perianth with 

 three, four, or six divisions, or none. Stamens definite and opposite to 

 the segments of the perianth, or numerous ; anthers extrorse. Ovaries 

 free, solitary or numerous, with from one to three cells, and one or 

 many seeds ; stigmas one or two. Fruit indehiscent, succulent or dry ; 

 embryo in the axis of a fleshy albumen. 



AIUNE/E. TYPHIXEE. 



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



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



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, indehiscent, 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.E. 



Perianth with six or eight segments, regular, petaloid. Stamens 

 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. Ruscus, 366, 378. 2. Convallaria, 163, 170. 



3. Paris, 182, 190. 



