Fig. 436: a-d, Drymaria pachyphylla: a, habit, x ^2', b, flower cluster, x 1; c, flower, 

 X 5; d, seed, x 5. e and f, Sagina saginoides: e, habit, x 1; f, fruit, x 5. g and h, Silene 

 acaulis: g, habit, x V2', h, flower, x 2i/^. (V. F.). 



