110 DESCRIPTIONS OF THE SHRUBS 



* Leaves deciduous, composed of many (7-31) blades (or twice-pin- 



nate) . (B. ) 

 B. Stem of leaves winged between the blades ; fruit red. (C.) 

 C. Blades (9-21) about entire, smooth above ; berries hairy. 



MonsTAiN Sumach (115) — Rhus copallina. 

 C. Blades (9-21) finely toothed, brown-hairy beneath. Japan 



Sumach — Rhus semialSita (R. Osb^ckii). 



C. Blades (11-15) coarsely toothed, leaf-stem hairy. European 

 or Elm-leaved Sumach (116) • — Rhus CoriSiria. 



B. Stem of leaves vsdthout wings between the blades. (D.) 



D. Blades (7-15) without notches, smooth on both sides ; berries 

 white ; plants very poisonous to the touch. (B.) * 



E. Berries small, pea-like ; in moist ground. PolsoN Sumach 



(119) — Rhus V&nix (R. venenJita). 



B. Berries large — cherry-like ; from Asia. Lac Sumach 

 — Rhus succedSiuea. 

 D. Blades (11-13) sharply serrate ; not poisonous ; berries red ; 

 stem smooth. (F.) 

 P. Blades regularly serrate ; shrub to 15 feet. Smooth Sumach 



(120) — Rhus glabra. 



F. Blades deeply and irregularly cut ; shrub to 8 feet. Cut- 

 leaved Sumach (121) — Rhus gl&,bra lacini^ta. 



D. Blades hairy beneath ; berries red. (G.) 



G. Stem velvety-hairy ; tall, 10-30 feet. (H.) 



H. Blades (11-31) regularly notched. Staghoru Sumach 



(114) — Rhus typhina (R. hfrta). 

 H. Blades deeply and irregularly cut. Fekn-leaved Sumach 

 (122) — Rhus typhina laciniita. 

 G. Stem less velvety ; blades 9-13; low, nearly procumbent ; 

 poisonous; fruit red ; southern. Dwarf Sumach — Rhus 

 pumila. 

 G. Stem slightly hairy when young ; tree-like, 20-30 feet high ; 

 hardy only South ; very poisonous ; from Japan. Varnish 

 or Lacquer Tree — Rhus verniclfera. 



* Leaves deciduous, simple, rounded at tip ; fruit generally abortive 



and plume- or smoke-like, Cdtinus. (I.) 

 I. 10-15 feet high. Smoke Bush (123) or Venice Sumach — Rhus 



C6tinus (Cotinus C6tinus). 

 1. 20-40 feet high. Wild Smoke-tree or Chittam Wood — Rhus 

 Cotinoides (Cotinus Cotinoides). 



* Leaves evergreen, usually simple (occasionally with 3 blades) , entire- 



edged ; low, 2-8 feet high ; hardy only in the extreme South ; from 

 California. (J.) 



