258 



XXVI. CAKYOPHYLLE,E. 



Siellaria. 



Pistil 



and andreecinm 

 (mag.). 



Stellaria. 

 Compressed seed, entire, and with vertical 



mid transverse sections, 

 with incumbent cotyledons (mag.). 



Steltaria. 

 Dehiscent fruit. 



Colobanthus. 

 Apetalous flower, stamens 



alternate with 

 the sepals (mag.). 



nujTiitiia matroiperma. 



Seed, entire, and with vertical and transverse sections sliowing the 

 accumbcnt cotyledons (mag.). 



Sperguhtria marg'mata. 

 Winged seed, entire, and with vertical and 



transverse sections, 

 with incumbent cotyledons (mag.). 



Jlolostevm. 



Depressed seed, vcntnil 

 keeled face (mug.). 



Holostetun. 

 Sagina. 



llolotteiiin unilirllatitin. 



bccd, cut vertically and transversely, with 



incumbent cotyledons (mag.). 



PRINCIPAL GENERA. 



Cerastiuin. Stellaria. 



Colobanthus. Qneria. 



Ctrtutium arrense. 



Heed, entire, nnd with vertical and transverse 

 sections, with Incumbent cotyledons (mug.). 



'Arenaria. 

 *Spergula. 



Buffbnia. 

 Spergularia. 



TRIBE III. POLYCARPEM, D.C. 



Sepals free, or united at the base by the disk. Petals as in Alsinece, usually 

 small, hypogynous, inserted with the stamens on a slightly developed torus, or 

 shortly perigynous. Style simple at the base, 3-2-fid above. Stamens 5 or fewer. 

 Leaves usually furnished with scarious stipules. 



PRINCIPAL GENERA. 



Drymaria. Polycarpon. Ortegia. 



Lceflingia. Polycarpeea. Stipulicida. 



Caryophylfece, with Paronychieee, Portttlacea, Amarantacec?, liasellcce, Chenopodiete, P/iytolacccte, 

 Nyclagi)iete, and even Polygonece, form a group of plants of which the common character ia a curved 

 embryo surrounding a floury albumen (see these families). Those Carynphyllea which have petals, definite 

 stamens, a one-celled and many-ovuled ovary, and opposite leaves, are easily distinguished from all these 

 families" ; but the apetalous and few-ovuled generu approach several of them. Notwithstanding their 

 parietal placentation, we may unite to this group Mesembryanthemece, which have a curved embryo 

 surrounding a floury albumen, and Cacteat, which have a curved but usually exalbuminous embryo. 



