COLCiliCUM. 



Calyx, none, (excpt some scattered Spathce) 



Corolla, with 6 divisions. Tube angular, extending down to 

 the root. Segments of the border spear-cgg-shaped, concave, 

 upright. 



Stami n a. Filaments 6, awl-shaped, shorter than the blossom. 

 Antheroe oblong, with 4 valves, fixed sideways to the fila- 

 ments. 



Pistilla. Germen buried within the root. Styles 8, thread- 

 shaped, as long as the stamina. Stigmata reflected, chan- 

 nelled. 



Pericarpium. Capsulaoi 3 lobes, connected on the inside 

 by a seam, blunt, with 3 cells, opening inwards at the seams. 



Seeds many, nearly globular, wrinkled. 



ALISMA. 



Calyx. Periantkium 3 leaves ; leqfits egg-shaped, concave, 

 permanent. 



Corolla. Petals 3, circular, large, flat, greatly expanded. 



Stamina. Filaments 6, awl- shaped, shorter than the blos- 

 som. Anthera roundish. 



Pistilla. Germina more than 5. Styles simple. Stigmata 

 blunt. 



Pericarpium. Capsula compressed. 



Seeds solitary, small. 



N. B. The Alisma Damasonium has 6 pistilla, and 6 cap- 

 sules, tapering to a point. The A. natans has generally 8 ; 



the A. plantago has from 1 2 to 18 capsulae, and as many pistilla. 



ERICA. 



Cal\x. Periantkium with 4 leaves j leqfits egg-oblong, per- 

 manent. 



b 



