GENERA OR FAMILIES. 363 



(15) Trifolium calyx tubular, five-cleft ; corolla persistent ; 



keel shorter than both wings and standard ; pod small, in- 

 dehiscent, shorter than the calyx, 1-2 rarely 3-4-seeded. 



9. Crassulaceous Plants. CRASSULACE.E. 



(16) Sedum sepals five, cohering at the base, often foliaceous ; 



petals five, spreading ; stamens ten. 



10. Saxifragaceous Plants. SAXIFRAGACE.E. 



(17) Parnassia calyx deeply five-cleft ; petals five ; stamens 



five, accompanied by five scales, each having a tuft of glo- 

 bular-headed filaments. 



11. Umbelliferous Plants. UMBELLIFERJJ. 



* Albumen solid. 



f* Fruit ovate or elliptical, rounded or slightly compressed 

 dor sally. 



{ Vittce single between the ribs. 



(18) FoBniculum fruit nearly taper ; carpels with five prominent 



obtusely-keeled ridges, of which the lateral form a margin, 

 and are rather broader than the others. 



J{ VittcB two or more between the ribs. 



(19) Silaus fruit nearly taper ; carpels with five sharp winged 



equal ridges, of which the lateral form a margin ; inter- 

 stices with many vittaj. 



ft Fruit much compressed dorsally. 



(20) Angelica fruit two-winged on each side ; carpels with 



three dorsal raised filiform ridges, and two marginal ones 

 dilated into a wing twice as broad as the rest ; interstices 

 with single vito. 



