GENERA OR FAMILIES. 167 



41. Lentibulariaceous Plants. LENTIBULARIACE.E. 



(195) Pinguicula calyx 4-5-lobed ; leaves entire, radical. 



(196) Utricularia calyx two-lobed ; leaves floating, much di- 



vided. 



42. Aquifoliaceous Plants. AQUIFOLIACE^ 



(197) Ilex flowers small, clustered in the axils of the alternate 

 leaves. 



43. Oleaceous Plants. OLEACE;E. 



(198) Fraxinus calyx and corolla none; leaves pinnate; fruit 



dry, oblong, winged. 



(199) Ligustrum calyx and corolla four-parted ; leaves simple 



fruit a berry. 



44. Convolvulaceous Plants. CONVOLVULACE^E. 



* Stems furnished with leaves. 



(200) Convolvulus calyx five-parted, with two small, distant, 



basal bracts ; corolla bell-shaped, five-plaited. 



(201) Calystegia calyx five-parted, enclosed in two foliaceous 



bracts ; corolla bell-shaped, five-plaited. 



** Stems thread-like, leafless. 



(202) Cuscuta calyx 4-5-cleft ; corolla urceolate, or nearly glo- 



bular. 



45. Polemoniaceous Plants. POLEMONIACE.E. 



(203) Polemonium corolla rotate, with five stamens. 



