72 ANACAKlHACK.i:. (CASHEW FAMILY.) 



2. R. glabra, L. Smooth ami filaiuous ; k-iiflcts 17 - .'Jl, ohloiiff-lancco- 

 lati-, senate, aemiiiiiate, wliite lu'iicatli. — ()|)i'n woods in dry riili soil. July. 

 — A .slinili (1- 10 lii,!:;li. I'etioles terete. 



.'1. R. COpallina, L. (Simai'II.) Uranelies and \viii<;-iiiargiiif<l jietiolcs 

 tomeiito.sc ; leaflets 9-21, lanceolate or ovate-lanceolate, acute or obtuse, 

 mostly entire, smooth above, paler iuid (hjwiiy lieneatii; jiaiiicle ofti-n larf^e 

 and spreading. — Margins of tields and ojien woods. July -August. — A 

 shrub or small tree. 



4. R. pumila, l\Iichx. Low, procumbent ; branches and jicticjles tomen- 

 to.se; leatlets 11 -13, oval or oblong, acute, coarsely serrate, jiale and tomeu- 

 tose l)eneath. — Pine barrens, Georgia to North Carolina. — IJranches 1° high. 



» * Flowers diacious, in loose axillary ]ianicles : drupe whitish, smooth : leaves 

 pinnate and trijbiiolate. — [Juice jwisonous.) 



5. R. venenata, DC- (Poison Elder.) Smooth ; leaves pinnate ; leaf- 

 lets 7-13, ovate or oblong, abruptly acute or acuminate, entire; jiauides 

 loug-peduncled, narrow, erect. ( U. Vernix, L.) — Swamps. July. — A shrub 

 8° -12° high. 



G. R. Toxicodendron, L. (Poison Oak, .Poison Ivy.) Branches 

 and petioles smootii ; leaves trifoliolate ; leaflets ovate or oblong-ovate ; pani- 

 cle small, s])reailing. 



Var. quercifolium, Michx. Stems low, erect; leaflets mostly vari- 

 ously lobed. — Dry ])ine barrens. 



Var. radicans, Torr. Stems climbing by rootlets ; leaflets toothed or 

 entire, rarely lol)ed, more or less pubescent. — Swamps. July. 



* * * Flowers dicecious, in loose panicles : drupe oblong, smooth, scarlet : nut 



chartaceous : seeds arillale : leaves pinnate. 



7. R. Metopium, L. Smooth; leaflets 3 - 7, coriaceous, long-stalked, 

 ovate or elliptical, acuminate, entire ; panicle narrow, as long as the leaves ; 

 calvx lobes vellow-ish white; petals and stamens 5. — South Plorida. — A tree 

 15° -20° high. 



* * * * Flowers dia'cious, in short hracted spikes, appearing with the leaves : 



drupe red, hairy : leaves trifoliolate. 



8. R. Canadensis, Marsh. Stem low, smooth; leaflets ovate, or the 

 terminal one obovate, obtuse, pubescent when young, toothed above the mid- 

 dle; spikes single or clustered, spreading. — Dry open woods in the upper 

 districts. March- April. — Shrub l°-2° high. Spikes 1' long. — Plant 

 aromatic, not poisonous. 



***** Flowers perfect, in an open panicle, the pedicels mostly abortive, 

 elongating, and plumose : drupe smooth. 



9. R. COtinoides, Nutt. Smooth ; leaves simple, membranaceous, oval, 

 obtuse, entire, acute at the base, the upper ones long-petioled ; panicle nearly 

 sessile, narrow, with erect branches; flowers minute. — Alabama (Buckley, 

 Mohr). — Leaves, with the petiole, 3' -4' long. 



