166 REPRODUCTIVE ORGANS. CHAP. Ill, 



rallel to the valves,, as in Draba; and sometimes 

 they are contrary, as in Subularia, but always lon- 

 gitudinal. The cells of the silique are generally 

 two, as in Chdranthus ; but sometimes the valves 

 are without partitions, and the pod consequently 

 one-celled, as in the genus Isatis. 



Pefini- ARTICLE 7. The Legume. The legume (PL VI. 

 Fig. 70 is a dry and elongated pericarp, consist- 

 ing of two valves with two opposite seams, to the 

 one of which only the seeds are attached, as exem- 

 plified in the Pea and Bean. It consists for the most 

 part of one cell only, as in Lathy rus ; but some- 

 times it consists of two cells, as in Astragalus; and 

 sometimes of many, as in Lotus. It is one-seeded, as 

 in Trifollum procumbens; two-seeded, as in Trifo- 

 lium Jragiferum ; or many-seeded, as in Pisum. 



figure. Its figure is oblong, as in Ulex ; or cylindrical, 

 as in Orobus ; or compressed, as in Hippocrepis ; 

 or rhomboidal, as in Ononis ; or gibbous, as in 

 Astragalus; or spiral, as in Medicago; or inversely 

 heart-shaped, as in Polygala. The substance of 

 the legtime when ripe is membranaceous, as in 

 Medicago ; or leathery, as in Vicia ; or firm and 

 woody, as in Mimosa. The surface is smooth, as 

 in Lathy rus Nissolia ; or rough, as in Lathy rus 

 hirsutus. 



Such is the general character of the legtime ; 

 but there is also a peculiar variety of it which, 

 though externally forming longitudinal sutures, to 

 one of which only the seeds are attached, does not 



