13. ELATINACBiE. 14. CAETOPHTLLAOEiE. 45 



U. 189. — j3. P. uliginosa (R.) ; caps, rather wedgeshaped below, 

 fl. larger. — a. Wye Downs, Kent. Mr. J. F. Duthie. /3. Cronk- 

 ley Fell, Yorkshire. Mr. James Backhouse. P. VI. VII. E. 



Order XIII. ELATINACE^. 



Sep. 3 — 5, distinct, or slightly connate. Pet. 3 — 5. Stam. 

 as many or twice as many as the pet., free. Caps. 3 — 6-celled, 

 3 — 5-valved, loculicidal, dissepiments adhering to central axis. 

 Styles 3 — 5 ; stigmas capitate. Seeds many, alliimien 0, embryo 

 curved with the seed. — L. opposite. Stip. minute or inconspi- 

 cuous. 



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

 6 — 8. Styles 3 — 4. Caps. 3 — 4-c6lled, many-seeded. Seeds 

 cylindrical, straight or bent. 



1. Elati'ne lAnn. Waterwort. 



1. E. hexan'dra (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.— ^. B. 955. E. I. f. 599. E. Hy- 

 dropiper and E. tripetala (Sm.). — Plant minute, creeping. El. 

 alternate, axillary. Cal. 3-fld.— Forming small matted tufts 

 under water, rare. A. VIII. E. S. I. 



2. L. Hydropiper (L.) ; 1. opposite shorter than their petioles, 

 fl. 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. 2670. E. siphosperma Dum. — Plant minute, creeping. 

 Cal. 4-fid. — Very rare, growing under water. A. VIII. E. I. 



Order XIV. CARYOPHYLLACE^. 



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 a,s the petals, free or connected at the base. Anth. opening 

 longitudinally. Ovary one, often stalked. Stigmas 2 — 5, sessile, 

 filiform. Caps. 1- or imperfectly 2 — 5-ceUed, opening by twice 

 as many teeth as stigmas, sometimes valvular. Placenta cen- 

 tral. Embryo generally curved round mealy albumen. — L. 

 opposite, without or rarely with scarious stipules. 



Suborder I. SILEXE^. 

 Sep. connate, forming a tube. Stam. 10. Filaments connate 



