CYRILLA FAMILY. 601 
ber. Drupes white. Tall shrub 10 to 18 feet high; frequently arborescont. Most 
abundant in the pine-barren swamps of the Coast Pine belt. Leaves extremely poi- 
sonous to the touch. 
Type locality: ‘‘Hab. in America septentrionali, Japonia.” 
Herb. Geol. Surv. Herb. Mohr. 
Rhus radicans L. Sp. Pl. 1:266. 1753. Porson Ivy. Porson VIN. ‘ 
Rhus toxicodendron radicans Torr. Fl. U. 8. 324. 1824. 
R. toxicodendron var. vulgare Michx. Fl. Bor. Am. 1:183. 1803. 
Ell. Sk. 1:363. Gray, Man. ed. 6, 119, in part. Chap. FI. 69. 
SAKHALIN, JAPAN, Kure IsLanps, MEXxIco. 
_Alleghenian to Louisianian area. Nova Scotia, Ontario; New England west to 
Dakota and Arizona, south to the Gulf from Florida to western Louisiana and 
Arkansas. 
ALABAMA: Throughout. In rich damp woods. Bottom lands. Flowers white, 
May; fruit ripe in August and September. A stout root climber, ascending the 
highest trees; lateral branches 3 to 4 feet long. Also creeping on the ground and 
over rocks. Leaves soft, entire, more or less toothed and incised. Like the last, 
poisonous to the touch. ‘ 
Economic uses: The fresh leaves are used medicinally, being the ‘Rhus toxico- 
dendron” of the United States Pharmacopwia. 
Type locality: ‘Hab. in Virginia, Canada.” 
Herb. Geol. Surv. Herb. Mohr. 
Rhus toxicodendron L. Sp. Pl. 1: 266. 1753. Porson Oak. 
Rhus toxicodendron var. quercifolium Michx. Fl. Bor. Am. 1:183. 1803. 
Ell, Sk. 1:363. Gray, Man. ed. 6, 119, in part. Chap. Fl. 69. Coulter, Contr. 
Nat. Herb. 2: 68, in part. 
Carolinian and Louisianian areas. New Jersey to Florida and Texas. 
ALABAMA: Throughout, but much less frequent. In dry sterile soil, barren hill- 
sides and pine barrens. Flowers greenish white; April. Fruit ripe in August and 
September. Drupes white. Low shrub,1 to scarcely 2 feet high, with an erect, 
slender stem from a creeping slender root, never climbing, leaves thick, obtusely tri- 
lobed. Most frequent in the sandy pine ridges of the Coast Pine belt. Forms inter- 
grading with the last have not been met with. Leaves equally deleterious. 
Type locality: ‘‘ Hab. in Virginia, Canada.” 
Herb. Geol. Surv. Herb. Mohr. 
Rhus aromatica Ait. Hort. Kew. 1: 367. 1789. FRAGRANT SUMACH. 
Rhuse canadensis Marsh. Arb. Am. 129. 1785. Not Nutt. 
Ell. Sk. 1: 364. Gray, Man. ed. 6,119. Chap. Fl. 69. Coulter, Contr. Nat. Herb. 
2:68. 
Alleghenian to Louisianian area. Ontario and New England; Vermont west to 
Michigan, south to West Virginia; Ohio Valley to Missouri, southern Kansas, Arkan- 
sas, and Texas, and from Tennessee to Georgia and western Florida. id 
ALABAMA: Tennessee Valley. Mountain region to the Upper division of Coast Pine 
belt. Clay County, Che-aw-ha Mountain, 2,400 feet. Madison County, flanks of 
Montesano, 600 to 800 feet. Jackson County, Gurley’s, 800 feet. Dekalb County, 
Lookout Mountain, 800 feet. Blount County, Warnock Mountain, 800 feet. ' Dale 
County, Ozark, scarcely over 250 feet above the sea. Flowers yellowish, March, 
April. Fruit ripe in June; drupes scarlet, aromatic. A slender shrub, 8 to 12 feet 
high, with wandlike branches. Most frequent on the calcareous slopes of the Ten- 
nessee Valley. ; : 
Type locality: ‘‘Native of Carolina, Mr. John Bartram.’ 
Herb. Geol. Surv. 
CYRILLACEAE. Cyrilla Family. 
CYRILLA L. Mant. 1:50. 1767. 
One species, southeastern North America. 
Cyrilla racemiflora L. Mant. 1:50. 1767. LEATHERWOOD. BLAck TI-TI. 
Ell. Sk. 1:294. Chap. FI. 272. Sargent, Silv. N. A. 2:3, ¢. 52. 
Louisianian area. Western Florida along the coast to North Carolina and west to 
eastern Louisiana. 
ALABAMA: Central Pine belt to Coast plain. Sandy swamps, borders of pine-barren 
streams. Autauga County (Z£. 4. Smith). Lee County, Auburn (Baker §: Earle). 
