XIV KEY TO THE OEDEES. 



B. Stamens not more tbau twice as many as the petals. 



* Stamens just as rnany as the petals, and one stamen in front of 



each petal. 

 Bebbebidace^. — Herbs (with us). Anthers opening by 



uplifting valves V 10 



PoBTTJLACAOE^. — Sepals 2. Styles 3-oleft. Leaves 2, 



fleshy 37 



ViTACE^. — Shrubs, climbing by tendrils. Calyx minute, 44 



Rhamnace^, — Shrubs, not climbing 45 



Plumbaginace^. — Herbs, Calyx plaited. Styles 5. 



Ovary ] -celled and 1-seeded 144 



Lyslmaehia, in 



Pbimulace,*, is occasionally polypetalous. Flowers yel- 

 low, in axillary spikes ; the petals sprinkled with 

 purplish dots 145 



* * Stamens either just as many as the petals and alternate with 



them, or not of exactly the same number. 

 -1— Corolla irregular. 



FuMARiACEJE. — CoroUa flattened and closed. Stamens 6. 15 



ViolacEjE. — Corolla ) -spurred. Stamens 5, Pod with 3 



rows of seeds on the walls 26 



Balsaminace^. — Corolla 1-spnrred, the spur with a tail. 



Stamens 5, Pod bursting elastically 42 



PoLYGALACE^. — Lower petal keel- shaped, usually fringed 

 at the top. Anthens 6 or 8, 1-oelled, opening at 

 the top. Pod 2-oelled 48 



Legitminos^. — Corolla mostly papilionaceous. Filaments 

 often united. Ovary simple, with one parietal 

 placenta. Leaves compound 49 



-I- -1— Corolla regular, or nearly sp. 



1. Calyx superior (i.e., adherent to the ovary, wholly or 

 partially). 



(a) Stamens perigynous (inserted on the calyx). 



Crataegus, in 



RosACEiE. — Shrubs. Stamens oocasionallyfromStolOonly. 



Leaves alternate, with stipules. Fruit drupe-like, 



containing 1-5 bony nutlets 62 



Saxitragaoe^. — Leaves opposite or alternate, without 



stipules. Styles or stigmas 2 ; in one instance 4. 



Ovary 1 -celled, with 2 or 3 parietal placentae 75 



