CXXX. AllOlDEiE. 389 



cuneate connective, dilated above into a convex, glandular, 

 2-porous disk, opening througli a pore in the summit of the 

 disk. Carpels many, crowded, free, with 3 parietal placentas, 

 incompletely 3-celled; ovules few ; style short ; stigma convex, 

 glandular. Berry 1-celled, few-seeded.— iil<«^/<, i:nu?n. iii. p. 

 57 ; JBot. Mag. t. 832. 



Marsh or water plants, with thick rhizomes. Leaves radical, on long 

 petioles, cordate-hastate, nerved. Spathe large, creamy-white, sweet- 

 scented.— i2. africana, also called Calla /Ethiojnca and the " Lily of the 

 Nile," is a common ditch plant throughout the colony ; and another species, 

 with spotted leaves, has recently been found at Natal. 



2. STYLOCHITON, Schott. 



Spathe short ; tubular at the base. Spadix included, inter- 

 ruptedly clothed with stamens and pistils. Male: Perianth 

 urceolate ; filaments free, filiform ; anthers 2-celled, bursting 

 longitudinally ; ovary rudimentary. Female : Ovary enclosed 

 in a cup-shaped perianth ; 2-4- celled ; style exserted ; stigma 

 hemispherical ; ovules 2 in each cell. — Schott, Trod. Hyst. 

 Avoid, p. 344. Grueinzia, Sonder. 



Stemless herbs, with hastate, petioled, radical leaves.— 1 species, from 

 Natal. 



3. PISTIA, Linn. 



Spathe tubular at base, connate with the spadix ; limb 

 spreading, furnished with a process, iuvolucrating the spadix 

 above. Spadix interruptedly androgynous; female at base, 

 male at the free apex. Anthers 3-8, adnate to the thickened 

 apex of the spadix, subglobose, opening by a transverse^ fur- 

 row. Ovary 1, obliquely placed on the adnate base of the 

 spathe, 1-celled ; o\'ules numerous, from a subbasal placenta ; 

 style terminal, thick; stigma cup-shaped. Berry few- or 

 many-seeded. — Kunth, I. c. p. 7. 



Floating plants, with long, fibrous roots. Leaves several, sessile, ex- 

 panding like a rose, entire, nerved. Spadiccs axillary, soUtary, on a very 

 short scape.— P. stratiotes, or an allied species, is found in still waters at 

 Natal. 



4. LEMNA, Linn. 



Spathe androgynous, delicately membranous, sub-bivalve, in 

 the marginal fissure of a lenticular or oblong frond ; the males 

 reduced to a stamen, the female to a pistil. Stamen hyi)ogy- 

 nous, exserted ; filaments filiform ; anthers 2-celled, didymous, 

 the cells separate, globose, opening across. Ovary sessile, 1- 

 celled ; ovules 1-4 ; style short ; stigma depressed. Utricle 

 membranons, 1-4-seeded.— -£•«<//. Gtn. n. 1068 ; E. Bot. 1. 1095. 



Small floating plants, covering the surljacc of stagnant watei-, and known 



