ORDER XXXVII. — VITACE^. 263 



Order XXXVL— CEDRELEA'CE^. R. Br. 



Calyx short, 4 — 5-cIeft. Petals 4 — 5, alternating with the 

 segments of the calyx. Stamens twice the number of the petals, 

 the opi)osite ones shorter. Ovary 5-cellecl, situated on a torus. 

 Fruit a woody 3 — 5-celk'd capsule. 



Genus I.— SWIETE'NIA. L. 10—1. 



(In honor of Van Swieten, a Dutch botanist.) 



Genus same as the order. 



1. S. Mahog'oni, (L.) a large tree, with reddish-brown wood 

 Leaves abruptly pinnate ; leaflets small, usually 4 pairs, ovate-lanceo- 

 late, unequal at the base. Floioers in panicles, axillary. South Amer 

 iea, Honduras, Southern Florida. Mahogany. 



Order XXXVIL— VITA'CE^. Juss. 



Calyx minute, 5-toothed. Petals 4 — 5, caducous. Flowers 

 dioecious. Stamens equal the number of petals and opposite 

 them. Filamerits sometimes slightly cohering. Anthers ver- 

 satile. Ovary 2-celled, 2 ovules in each cell, surrounded at the 

 base by an expansion of the torus. Styles short or none. 

 Stigma simple. Fruit a globose, pulpy berry. Lower leaves 

 opposite, upper alternate. Flowers sometimes polygamous, 

 small, greenish. Climbing shrubs. 



Genus I.— YI'TIS. L. 5—1. 

 (From a Celtic word signif^ving the best of trees.) 



Calyx scarcely toothed, small. Petals 4 — 5, spreading, or 

 more generally united at the top, caducous. Ovary usually 2- 

 celled, with 2 ovules in each C(dl. Fruit a berry, 1 — o-celled 

 and 1 — o-seeded. Peduncles usually changed into tendrils. 



1. V. rotundifo'lu. (Mich.) Stem twininc:, ascending tlie highest 

 trees, with fsmooth bark, sometimes not climbing ; t>raiicljes verrucose. 

 X(?a7'(?.s- cordate, botli surfaces shining, glalirous ; small tufts of hair at 

 tl>e juMction of the veins, ob-ciirely 3 lobed, toothed. Ftowerx in ra- 

 cemes, composed of numerous sm:i!l tunb.-l.s |)<>lvg;imons. Fmif large, 

 with a coriaceous integument, pleasant to the taste. — Yellow. ^ . May 

 — June. Common in tlie middle and h)W country of Georgia and Car- 

 olina. V. vu/pica, (X.) Bidl-yrape. Mimcadine-grape. Fox-grape. 



2. V. CORDIFO'UA, (Mich.) Leaves cordate, acuminate, toothed, gla- 

 brous, often slightly 3-lobed. Flowers numerous, in loose racemes. 

 Fruit small, sour, nearly black when i-ipc — Yellow. ^ . Common on 

 the banks of stieams. May. Whiter-grape. Fro-^t grape. 



8. V. ripa'ria, (Mich.) Leaves unequally incised and toothed; teeth 

 very coarse, acuminate, somewhat ;}-lobed ; jietioles, margins, and 



