50 
14. CAEYOPHYLLACE^S;. 
1. Ela'tine Linn. Waterwoi t. 
1. E.kexandra (DC.) 1. oi^posite longer than their petioles, 
fl. slightly .stalked with 0 stam. and 3 obovate pet., caps, turbi- 
nate concave at the summit 3-celled, seeds nearly straight as- 
cending 8—12 in each cell.— ^. B. 95.5. R. I. f. 599. E. H>i- 
dropijier and E. frijietahx (Sm.). — Plant minute, creeping. Fl. 
alternate, axillary. Cal. 3-fid. — Forming small matted tufts 
under water, rare. A. VIII. E. S. I. 
2. E. Hydroji'iper (L. em., Koch.) ; 1. opposite shorter than 
their petioles, fl. sessile with 8 stam. and 4 ovate pet., caps, 
roundish depressed 4-celled, seeds bent almost double pendulou.s 
4 in each cell. — E. ]'>. S. 2670. — Plant minute, creeping. Cal. 
4-fid. — Very rare, growing under water. A. A'lII. E. I. 
Order XIV. CAR YOPHYLLACE.E. 
Sep. 5 or 4, distinct or connected into a tube. Pet. 5 or 4, 
clawed (rarely 0). Stam. usually twice as many, sometimes as 
many as the petals, free or connected at the ba,se. Anth. opening 
longitudinally. Ovary one, often stalked. Stigmas 2 — 5, sessile, 
filiform. Caps. 1- or imperfectly 2 — 5-celled, opening by twice 
as many teeth as stigmas, sometimes valvular. Placenta cen- 
tral. Embryo generally curved round mealj' albumen. — L. 
opposite, without or rarely with scarious stipules. 
Suborder I. SILEXE^. 
Sep. connate, forming a tube. Stam. 10. Filaments con- 
nate into a tube below and adnate to the stalk of the ovary. 
Caps, usually stalked. — Pet. 5, clawed in all our plants. No 
stipules. 
* Tiro or more imbricated opposite scales at the base of 
the cali/x. 
1. DiANTHi's. Cal. 5-toothed. Styles 2. Caps. 1 -celled, 
many-seeded, 4-valved at top. Seeds i)eltatc, convex 
above, concave beneath and more or less keeled. 
** No scales <(t the base of the calyx. 
2. Sapoxaeia. Cal. 5-toothed, terete. Styles 2. Caps. 
1-celled, 4-valved at top. Seeds filolmlar or reni/orni. 
[3. Ct^cubalus. Cal. 5-foothed. Styles 3. Ca/>s. a ylobose 
l-celled berry. Seeds reniform.] 
