CATALOGUE OF FOREST TREES. 



67 



A small tree, rarely exceeding 12 meters in height, with a trunk sometimes 0.60 meter in diameter, or in the 

 Eocky Mountain region reduced to a low shrub ; commou in all the northern forests, in northern New England 

 taking possession of ground cleared by fire of the coniferous forests. 



Wood light, soft, close-grained, compact; medullary rays numerous, thin; color, light brown, sap-wood clear 

 yellow; specific gravity, 0.5023; ash, 0.40. 



The small acid fruit used domestically and by herbalists in the preparation of cough mixtures, etc. 



106. Prunus umbellata, Elliott, 



8k.i,541. Eaton, Manual, 6 ed. 286. Dietrich, Syn. ill, 44. Chapman, Fl. S. States, 119. Wood, CI. Boot, 328; Bot. & Fl. 102. 

 Young, Bot. Texas, '251.- Vasey, Cat. Forest Trees, 13. 



P.pumila, Walter, Fl. Carollniana, 146 [not Linnajus]. 



Cerasus umbellata, Torrey & Gray, Fl. N. America, i, 409. Eaton & Wright, Bot. 190. Ecemer, Syn. Men. iii, 78. 



SLOE. BLACK SLOE. 



South Carolina, south near the coast to Mosquito inlet and Tampa bay, Florida, and through central Alabama 

 to eastern Mississippi (Holly Springs and Enterprise, Mohr). 



A small tree, 5 to 6 meters in height, with a trunk 0.25 to 0.38 meter in diameter ; dry, sandy soil. 



Wood heavy, hard, close-grained, compact ; medullary rays numerous, thin ; color, dark reddish-byown, the 

 sap-wood much lighter ; specific gravity, 0.8202 ; ash, 0.12. 



The black or red pleasantly acid fruit used as a preserve. 



107. Prunus emarginata, Walpers, 



Bep. ii, 9. Dietrich, Syn. iii, 42. London, Arhoretnm, ii, 714. Watson in King's Eep. v, 79. ^Torrey, Bot. Wilkes Exped. 284. 

 Brewer & Watson, Bot. California, i, 167. 



Cerasus emarginata, Douglas in Hooker, Fl. Bor.-Am. i, 169. Don, Miller's Diet, ii, 515. Torrey & Gray, Fl. N. America, 

 i, 410. Eaton & Wright, Bot. 189. EoBmer, Syn. Mon. iii, 79. Torrey in Pacific E. E. Eep. iv, 83. Bolander in 

 Proc. California Acad, iii, 79. 



Cerasus erecta, Presl, Epimel. Bot. 194. Walpers, Ann, iii, 854. 



Cerasus glanduUsa, Kellogg in Proc. California Acad, i, 59. 



Vancouver's island and the valley of the lower Eraser river, south through western Washington territory and 

 Oregon, east to the western slopes of the Bitter Eoot mountain, Idaho (Lolo trail, Watson), and the valley of tho 

 Jocko river, Montana [Ganby & Sargent). California along the western slopes of the Sierra Nevadas and on the 

 Coast ranges, from San Francisco bay to the Santa Lncia mountains {O. B, Vasey), reaching an elevation of /rom 

 3,000 to 4,000 feet. 



A tree often 12 to 15 meters in height, with a trunk sometimes exceeding 0.30 meter in diameter ; at high 

 elevations and throughout central California reduced to a shrub 2 to 3 meters in height, or in the Santa Lucia 

 mountains 15 to 18 meters in height, with a trunk 0.60 to 0.90 meter in diameter ( Vasey) ; generally along streams 

 or in low, rich woods. 



The wood of the type not collected. 



Var. mollis, Brewer, 



Bot. California, i, 167. Hall in Coulter's Bot. Gazette, ii, 86. 



Cerasus mollis, Douglas in Hooker, Fl. Bor.-Am. i, 169. Hooker, London Jour. Bot. vi, 217. Don, Miller's Diet, ii, 515. 

 Torrey & Gray, Fl. N. America, i, 410. Loudon, Arboretum, ii, 417. Eaton & Wright, Bot. 189. Nuttall, Sylva, ii, 

 14, t. 46; 2 ed. i, 164, t. 46. Eoemer, Syn. Mon. iii, 79. Eichardson, Arctic Exped, 425. Newberry in Pacific E. E. 

 Eep. vi, 73. Cooper in Pacific E. E. Eep. xii, 29, 59; Am. Nat. iii, 406. Lyall in Jour. Linnseau Soc. vii, 131. Gray 

 in Proc. Am. Acad. Tiii, 381. 



P. mollis, Walpers, Eep. ii, 9.- Dietrich, Syn. iii, 42. Torrey, Bot. Wilkes Exped. 284. Vasey, Cat. Forest Trees, 13. 

 Macouu in Geological Eep. Canada, 1875-'76, 194. 



The common northern and Idaho form, more or less wooly pubescent, especially on the under side of the leaves. 

 Wood light, soft, not strong, brittle, close-grained, compact; medullary rays numerous, thin ; color, brown 

 8trea.ked with green; specific gravity, 0.4502; ash, 0.21. 



