42 14. CARYOPHYLLACE^. 



3 — 5-valved, loculicidal, with central placentas. Styles 3 — 5, 

 stigmas capitate. Seeds many, albumen 0, embryo curved with 

 the seed. — L. without stipules, opposite. 



1. Elatine. Cal. 3— 4-parted. Pet. 3— 4. Stam. 3— 4 or 

 6—8. Styles 3 — 4. Caps. 3 — 4-celled, many-seeded. Seeds 

 cylindrical, straight or bent. 



1 . Elatine Linn. "Water- wort. 



1. E. hexandra (DC); 1. opposite longer than their petioles, 

 fl. slightly stalked with 6 stam. and 3 obovate pet., caps, turbi- 

 nate concave at the summit 3-celled, seeds nearly straight as- 

 cending 8—12 in each cell.— R. /. f. 599. E. Hydropiper E. B. 

 955. E. tripetala Sm. — Plant minute, procumbent. Fl. alter- 

 nate, axillar)'. (^al. 3-fid. — Forming small matted tufts under 

 water, rare. A. VIII. 



2. E. Hydropiper [Ij.); 1. opposite shorter than their petioles, 

 fl. stalked or nearly sessile with 8 stam. and 4 ovate pet., caps, 

 roundish depressed 4-celled, seeds bent almost double pendulous 

 4 in each cell. — E. B. S. 1:670. E. Schkuhriana (Hayne) Reich, 

 — Fl. quite sessile in our plant. Cal. 4-fid. — Very rare, growing 

 under water. A. VIII. E. I. 



Order XIV. CARYOPHYLLACE^. 



Sep. 6 or 4, distinct or connected in a tube. Pet. 5 or 4, 

 clawed. Stam. usually twice as many as, sometimes equal to, 

 the petals, free or connected at the base. Anth. opening longi- 

 tudinally. 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 central. 

 Embryo generally curved round mealy albumen. — L. without 

 stipules, opposite. 



Suborder I. SILENE^. 



Sep. united into a tube. Stam. united below into a tube 

 which is connate with the stalk (carpophore) of the ovary. Caps, 

 stalked. 



1. DiANTHUS. Cal. 5-toothed, with 2 or more imbricate 

 opposite scales at the base (except in D. prolifer). Pet. 5, 

 clawed. Stam. 10. Styles 2. Caps. 1-celled, many-seeded, 

 opening at the top with 4 valves. Seeds peltate, convex 

 above, concave beneath and more or less keeled. 



2. Saponaria. Cal. 5-toothed, naked at the base. Pet. 5, 



