SfiGKEGAlES OP RHUS. 13'}' 



Lookout Mountain, Georgia, July, 1898, Albert Euth, n. 356 

 as in U. S. Herb. Perhaps a more pubescent form, with some- 

 what doubly lobed leaflets, is Percy Wilson's n. 155 from Taylor's 

 Ridge, also in the mountains of northwestern Georgia. 



T. QUBKCIFOLIUM. Rhus querctfoHa, Steud. Nom. 1 ed. 689. 

 Habit of the last two, the leaflets quite as strongly lobed, but 

 angularly and acutely so ; fruits of the largest, in short glom- 

 erules or racemes, depressed-globose, polished and nearly glab- 

 rous. 



Inhabits the coastal plain, mostly in pine barrens, from Dela- 

 ware to Florida ; excellent specimens in U. S. Herb, from 

 Laurel, Del., Commons; Salisbury; Md.; Chickering; Cape Henry, 

 Va., Kearney; Wilmington, N. C. McCarthy. This doubtless 

 coastal plant is typical for the var. quercifolia of Michaux. Its 

 leaflets are patterned always after the black- oak type, i. e. are 

 acutangular, while in both T. compactum and moniicola they 

 have sinuate and rounded lobes, imitating the white-oak type 

 in that respect, though not in color. 



T. OKiENTALE. Branches stout, strongly angular, ferrugi- 

 nous-tomentulose the first season, afterwards glabrate,lenticellate: 

 leaflets, large, the terminal one on a short petiolule, broadly 

 ovate, cuspidately acute, entire, commonly 4 or 5 inches long, 3 

 or 4 in width, deep green on both faces, glabrous above, also 

 beneath except in axils of midvein, these strongly hirsute : 

 panicles short, divaricately branched ; flowers large, petals not 

 nervose as in American species: fruit large, globose; epicarp thin- 

 ner than in any American species, fragile, striate, sparsely 

 muriculate, setose-hispid about the apex when immature. 



The Japanese so-caUed Rhus Toxicodendron is in several par- 

 ticulars so different from any and all New World species that 

 it forms a fair subgenus ; yet I can not discover that it has ever 

 been indicated as a variety, not to say species ; though I can 

 hardly see how this neglect was possible, and fear the above 

 name may prove a synonym. My type is on sheet 19548, TJ. S. 

 Herb., from Hakodate, 1862, by Maximowicz. 



