ANALYTICAL KEY. 9 



Stamens on the calyx; styles 2 or 3 Saxifragaceae, 5j 



Shrubs or trees with opposite leaves. 



Pinnately veineil, not lobeil Celastraceae, "o 



Palmately coniijound; stamens 4 to 8 Sapiudaceae, 37 



2. Ovai'u iind fni'd iiifcrlor or inainlt/ so. 



Tendril-bearing herbs; flowers monoecious, axillary Cucurbitaceae, G3 



Shrubs with opposite leaves; flowers dioecious Ccrnaceae, 03 



Shrubs; stamens opposite the clawed petals Rliamuaceae, 35 



Shrubs; stamens alternate with the petals. 



Leaves alternate; fruit a berry Saxifragaceae, 55 



Leaves opjiosite, entire; style 1 ConiacecB, C3 



Herbs; fruit a many-seeded cai)sule Saxifragaceae, 55 



Herbs; parts of the flower mostly in fours (rarely 2 or G) Onagraceae, 59 



Herbs; flowers in umbels; styles 2; fruit dry Umbelliferae, G3 



Division 2. Gamopetalae : petals more or less united into one piece. 



A. Ovary inferior, or largely so. 



Stamens more numerous than the lobes of the corolla, 8 or 10. 



Distinct and free from it, or nearly so Ericaceae, G8 



Stamens as many as the lobes of the corolla (5, rarely 4), united into a tuljc. 



Flowers in an involucrate head . . , Compositae, GO 



Flowers separate in racemes or spikes Lobeliaceae, G7 



Stamens as many as the corolla-lobes, distinct. 



Nearly or quite free; leaves alternate, no stipules Campanulaceas, G7 



Inserted on the corolla; leaves opposite or whorled. 



"With stipules, or in whorls, entire Rubiaceae, G5 



Without stipules, opposite Caprifoliaceas, G4 



Stamens only 3, fewer than the lobes of the corolla. 



Leaves opposite; stamens distinct Valerianae eae, 66 



Leaves alternate; stamens united Cucurbitaceae, G3 



B. Ovary superior (free), or mainly so. 



1. Stamens more numerous titan the lobes of the coi'oUa. 



Pistil single and simple; leaves compound Leguminosae, 38 



Pistils several and simple; leaves simple, fleshy Crnssulaceae, 58 



Pistil compound, with one undivided style Ericaceae, GS 



2. Stamens as many as the divisions of the corolla and oj)])oslfe them. 



Styles 5; ovary 1-ovuled, fruit 1-secded Plumbaginaccae, 71 



Styles 1; capsule at least several-seeded Primulaceae, 72 



