GENERA OK FAMILIES. 167 



41. LentibulariaceoTis Plants. Lentibulariace^. 



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



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



vided. 



42. Aquifoliaceous Plants. Aquifoliace.e. 



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



leaves. 



43. Oleaceous Plants. Oleace^. 



(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. Convolvnlaceous Plants, Convolvulace^. 



* 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-lilce, leafless. 



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



bular. 



45. Polemoniaceous Plants. Polemgniacete. 



(203) Polemoniujn — corolla rotate, with five stamens. 



