324 PENTANDRIA. TRIGYNIA. rhus. 



A shrub 1 — 3 feet high, slender, smooth, except towards the 

 summit, where it is a little pubescent ; leaflets very broad- 

 ovate, acuminate, with the upper surface smooth and shining; 

 lateral ones sessile ; the terminal one on a peduncle nearly an 

 incli long; margin entire, or with a few obtuse sinuate teeth. 

 Flowerts in axillary clusters towards the upper part of the 

 stem, greenish. Berries subglobose, white, smooth. 



Hab. In dry woods. June — July. Poison- Oak. 



/5. radicans* : stem climbing. R. radicans L. Willd, 

 Spec. I. p. 14(^1. Bot. Mag. t. 1806. Big. Bost. p. 73. 

 Ejmd.Mcd. Bot. III. p. 19. t. 42. Elliott Sk, I. p. 363. 

 Walt, Car. p. 25d. R. Toxicodendron /3. vulgare Mich^ 

 F/. I. p. 183, P i< r .? A F/. I. p. 205. R a e m. <^ Sc hu 1 1, 

 VI. po 651. Co Id. Noveb. 65. 



A vine climbing trees and houses to a great height, to which it 

 attaches itself by its lateral radicles. Leaves ternate ; leaflets 

 ovate, acuminate, smooth, generally entire, (the lower ones 

 sinuate-dentate.) Flowers dioecious, in axillary racemes, green- 

 ish. Berries white. 



Hab. In woods, hedges, and about habitations ; very common. 

 June. Poison Fine. — Mercury, 



This plant is by many Botanists considered a distinct species 

 from R. Toxicodendron^ but I am of the opinion of Pursh 

 and Mic h aux, tiiat it is a mere variety. They are both 

 poisonous, but in a much less degree than R. Vernix. 



6. R. aromaticvm A i t. : leaflets sessile, ovate-rhomboid, 

 dentate, pubescent beijeath ; flower.* amentaceous, dioecious ; 

 berries pilose. Willd. Spec. I. p. 1482. Jit. Ke.w. I. p„ 

 367. Turpin Ann. jl/us. V. p. 445. t. 30. Mich. FL 

 I. p. 184. Purs/t F/. I. p. 205. E I lio 1 1 Sk. I. ^. 3QA. 

 Roem. ^Schult. VI. p. 652. Lobadium aromaiicnm 

 Raf. 



A small shrub with smooth slender branches. Leaves ternate ; 

 petioles an inch long, pilcse ; leaflets subrhomboidal, about an 

 inch and a Jiaif lung, acute, closely sessile, pubescent beneath ; 

 terminal one narroH-ed and entire at tlie base ; margin coarsely 

 toothed. Flowers in short dense axillary racemes or aments, 

 bracteate at the base. Calyx 5-lobed, half as long as the pe- 

 tals, coloured ; segments nvate, obtuse. Petals yellowish, ob- 

 long, glandulifcrous at the base. Slamens 5. Sligmas near!) 

 sessile, capitate. Berries subglobose, red, villous, in small 

 dense clusters. 



Hab. In mountain tracts ; from New-England to Pennsylvania. 

 Near Williams College, Massachusetts. Dewey. On the 

 Catskill Mountains, New-York. Knevels and Brace. 

 April. 



According to Mr. Brace, the flowers are fretid. The R. 

 ^uaveolens of Ait on does not appear to be a distinct species. 



