KHDS 



1529 



ones having appeared in tlie trade, so far as tin 

 knows. 



In the following enumeration, two species of 

 (Nos. 3 and 4) are included. 



itromatica, 5. glabra, 8. snccedanea, 10. 



atropurpurea, 3. integrit'olia, 1. Toxicodendron 6 



Canadensis, 5. laciniata, H. 11. trilobata, 5. 



copallina, 15, Osbeckii, IB. typhina. H. 



Coriaria. 14. ovata. 2. venenata, 9. 



cotinoides, 4. pumila, 12. vernidfera. 13. 



Cotinus, 3. radicans, 6. Vefnix, 9. 



diversiloba, 7 semialata, 16. 



A. Foliage simple. 



B. Peduncles not plumose in fruit. 1. integrifolia 

 2. ovata 



BB. Peduncles plumose in fruit 3. Cotinus 



4. cotinoides 

 AA. Foliage compound. 



B. Lfts. normally S ■"). Canadensis 



(). diversiloba 

 7. Toxicodendron 

 BB. Lfts. many. 



c. Lvs. smooth on both iides. . 8. glabra 



9. venenata 

 10. succedanea 



cc. £a-s. pubescent beneath 11. typhina 



12. pumila 

 1.1 vernicifera 



D. Rachis margined 14. Coriaria 



DD. Rachis winged between 



lfts 1.5. copallina 



lU. semialata 



1. integrifdlia, Benth. & Hook. Shrub, 2-8 ft. high: 

 lvs. oval, entire, or occasionally long-petioled. with a 

 lfts.: panicles and new growths pul>erulent: lis. white 

 or rose-colored : fr. very large. California. S.S. 3:109. 

 I species. 



'^^^l^.N^V 



2115. Rhus glabra ( 



2. ovata, Watson. Another Californian species re- 

 sembling the last, but with larger and smoother leaves. 



3. C6tinu3, Linn. Smoke Bush. Venice Sumach. A 

 bush 10-12 ft. high, with simple obovate lvs. and brown 



bark fls purple m ample loose panicles and on very 

 long pedicels, which become profusely plumose, giving 

 the plant the smoky appearance from which it derives 

 its common name Eaily summer. Eu., Asia. Var. 

 atroptirpiirea, Hoit , is distinguished by the darker 



/f^l^- 



^'^^'-.ri^ 



%^^:,*^»^ 



2116. Young plants of Rhus typhn 



color of Its indoresc. n 

 mon in cultivation, in 

 itself as readily :is - 

 when killed by lion i - 

 replaced, Ung. 5.11s. 



4. cotinoides, Nutt. 

 undivided, oval or ob^ 

 yellow, m large panicl 

 they develoj). Flowei 

 sunies most liiilli int i 

 S.S. 3:9b-<)— Kiiouii , 

 Sometimes c.illi il ( h 



5. Canadensis, M n - 

 ing shrub, .i-h ti 1 

 bescent, petiolate. n 



appear. Rocky wu." 

 has the lfts. deejilN 

 best cover plants m 

 by Layers. Will II i 

 adapted to di\ , I'l.'k 

 6. Toxicodendron, 



, var laciniata 



Poison Oak. Poison Ivt 

 lant: lvs. smooth or often 

 Slim itc. or lolled, petiolate- 



iil.l I il « Ih II ilM . .lune. N 

 ml I Ih I K. 11 ill planting 

 |M I . iMiu 1. ill iin, and for 

 tal 



refore not to bi 

 glabra, Linn. !■ 



laciniita, ( 1 1 n i i n i i [ i , i _ > - 



autumn. R.H. IhUJ, p. 7. V. lU.lOl. 



9. venenata, DC. Dogwood. Poison Sumach. Usu- 

 ally taking the form of a tree, 10-20 ft. high: lfts. 7-13 

 on a red petiole and midrib, smopth, shining green 

 above, pale beneath: fls. in a narrow panicle, drooping: 

 fr. small, flattened, white. June. Moist ground, eastern 

 N. Amer. — One of the most beautiful, but unfortunately 



