ff. Stipules outside petiole, 

 g. Leaves lobed. 



h. Leaves with 2 rounded lobes at apex and 13 or 11 veins from heart-shaped base — Bauhinia, 

 page 168. 

 hh. Leaves deeply palmately lobed with mostly 5 long-pointed, finely toothed lobes — Cochlospermum 

 Family (Cochlospermaceae;* Cochlospermum*) , page 360. 

 gg. Loaves not lobed. 



i. Leaves long, very narrow, finely toothed — Willow Family (Salicaceae;* Salix*), page 54. 

 ii. Leaves broad, mostly not toothed, 

 j. Flowers minute, 

 k. Flowers unisexual. 



1. Leaves with stinging hairs — Nettle Family (Urticaceae; Urera). 

 11. Leaves without stinging hairs. 



m. Female flowers usually without petals, with 3 or 2 styles; fruit a drupe or capsule — 

 Spurge Family (Euphorbiaceae), page 260. 

 mm. Female flowers with usually 4 petals, 4 stigmas; fruit a berry with 4 nutlets — Holly 

 Family (Aquifoliaceae; Ilex). 

 kk. Flowers bisexual. 



n. Ovary inferior — Ginseng Family (Araliaceae; Dendropanax), page 426. 

 nn. Ovary superior — Bittersweet Family (Celastraceae). 

 ij. Flowers larger, often showy. 



o. Fruits 2-5 from a flower, berrylike, black, borne on an enlarged red disk ; flowers yellow — 

 Ochna Family (Ochnaceae; Ouratea). 

 00. Fruit 1 from a flower. 



p. Leaves pinnately veined; flowers with cuplike base bearing sepals, 5 petals, and mostly 

 manv separate stamens — Rose Family (Rosaceae), page 140. 

 pp. Leaves" palmately veined (pinnately veined in Quararibaea, page 336), flowers with parts 

 inserted at base, stamens many, united into a column around pistil, 

 q. Flowers with unbranched style — Bombax Family (Bombacaceae), page 382. 

 qq. Flowers with style having mostly 5 branches — Mallow Family (Malvaceae), page 326. 

 ee. Stipules absent. 



r. Seed exposed on 2-lobed, red fleshy base; flowers and fruits not produced; leaves lance-shaped, very 



narrow, thick, without lateral veins — Yew Family (Taxaceae; Podocarpus), page 30. 

 rr. Seeds enclosed in fruits maturing from flowers; leaves various. 

 s. Ovarv inferior. 



t. Leaves palmately veined, petiole joining blade usually above base — Hernandia Family (Her- 



nandiaceae; Hernandia), page 130. 

 tt. Leaves pinnately veined. 



u. Petals none or minute — Combretum Family (Combretaceae), page 386. 

 uu. Petals present. 



V. Fruit a drupe less than K inch long, 1-seeded— Sweetleaf Family (Symplocaceae; Syjn- 

 piocos), page 456. 

 vv. Fruit larger, various, usually many-seeded — Lecythis Family (Lecythidaceae*) . 

 ss. Ovary superior. 



w. Corolla of separate petals or absent. 

 X. Flowers unisexual. 



y. Calyx a cylindrical tube with 4 lobes; corolla absent — Mezereon Family (Thymeleaceae; 

 Daphnopsis) , page 380. 

 yy. Calyx of mostlv separate sepals. 



z. Pistils 3, each forming a drupe with 1 curved seed — Moonseed Family (Menispermaceae; 

 Hyperhaena). 



A. Styles 3 or 2; fruit a capsule or drupe — Spurge Family (Euphorbiaceae), page 262. 

 AA. Style 1, 3-forked; fruit of 3 winged keys — Thoxiinia portoricensis, page 310. 

 XX. Flowers bisexual. 

 B. Flowers minute. 



C. Flowers regular. . 



D. Flowers in long narrow racemes, white; fruit a minute capsule — Cyrilla li'amily 

 (Cyrillaceae, Cyrilla), page 298. ^ ., ,., . ,, • 



DD. Flowers in panicles or single; fruit a drupe— Icacina Family (Icacinaceae; Mappia, 



OttOSchulzia) . ^ , ,„ , ■ nr ,■ n m ^ 



CC. Flowers irregular, with 5 unequal petals— Sabia Family (Sabiaceae, Mehosma), page 314 . 

 BB. Flowers larger. 



E. Flowers regular. . . „ 



F. Pistils many, each with 1 style— Dillenia Family (DiUeniaceae, Dillenia*), page 344. 



FF. Pistil 1. " . ^., „ , „ , .., , . 



G. Flowers with 4 petals, 4 to many long stamens; pistil usually stalked, with short 

 style or none — Caper Family (Capparidaceae; Capparis, Morisonia), page 132. 

 GG. Flowers with 5 overlapping sepals, 5 petals, many stamens, and pistil with 2-5 

 styles— Tea Family (Theaceae), page 346. 

 EE. Flowers irregular, with usually 3 petals and 8 stamens united into a tube— .Milkwort 

 Family (Polygalaceae; Poiygala, Badiera), page 260. 

 WW. Corolla of united petals. 



H. Stamens separate and distinct. 



L Fruit a drupe — Olax Family (Olacaceae; Schoepfia, Ximenia). 

 IL Fruit a capsule— Heath Family (Ericaceae; Lyonia). 



23 



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