XXIV. ANACARDIA‘CEE: RHU’S, 191 
3 ft. to 4 ft. with several upright stems, forming a small bush, from 
the base of which proceed many prostrate runners. 
ww AR. 7. 2 radicans Tor. & Gray. R.T. a vulgare Miche, ; R. T. B ra- 
dicans Tor. (Bot. Mag. t. 1806. and N. Du Ham. 2. t.48., and our 
Jigs. 288. and 289.) — Climbing ; leaves more commonly entire, or 
nearly so. The Rhis radicans 
of the London gardens, readily 
known from the preceding variety 
by its trailing or climbing stem, 
and by its entire leaflets, 
288. Rhos Toxicodéndron radicans. 289. Rhiis Toxicodéndron radicans, 
x 4 R, T.3 microcérpon Tor. & Gray R. Toxicodéndron y microcérpon 
Miche. — Leaves oval-oblong; fruit smaller. 
These varieties, which have been hitherto, for the most part, treated as 
belonging to two species, R. radicans and FR. Toxicodéndron, are com- 
mon in many parts of North America; sometimes covering the surface of 
the ground to a great extent, and at other times climbing to the top of the 
highest trees, and penetrating the bark with their fibrous roots, The terri- 
ble effects of their poison are frequent, and well authenticated. 
§ iii, Lobddium Dec. 
Sect. Char. Leaf of 3 leaflets, and palmately disposed on the tip of the com- 
mon petiole, cut in a serrate manner; the teeth large. Flowers in a dense 
catkin. Sexes polygamous. There are two-lobed glands under the ovary, 
alternate with the stamens. Styles 3, short, distinct. Drupe rather com- 
press ed, villose. Nut smooth. Aromatic shrubs. (Dec. Prod., ii. p. 72.) 
8. R. aroma’tica Ait, The aromatic Rhus, or Sumach. 
Adentifieation. «Atte Hort. Kew., 1. p. 367.3; Dec. Prod., 2. p 73.; Don’s Mill., 2, p. 75.; Tor. and 
ray, 1. p. 219. . 
Synonymes. R. suaveolens Ait.; R. trifoliata Lodd. Cat. ; ieee] 
&. canadénsis Marsh.; Lobadium aromaticum Raf.; Turpinia 
Raf. ; Schm4lzia Desv.; Myrica trifolidta Hort.; Toxico- 
déndron crenatum Mill. Dict: No. 5. 
sel i ta Turp. in An. du Mus., 5. p. 445. t. 30.3; and our 
Spec. Char., §c. Leaves pubescent when young 
(at length coriaceous, and often glabrous) ; leat- 
lets sessile, rhomboid-ovate, unequally and in- 
cisively toothed, the terminal one narrowed at 
the base. (Zor. and Gray.) A small aromatic 
shrub. Pennsylvania to Carolina and Georgia. 
Height 1ft. to 4ft. Introd. in 1772. Flowers 
small, yellow; April and May. Fruit small, 
light red ; ripe in September. 
Drunes the size of a small pea, light red, more 299. Rhts arumatica, 
