68 Tennessek Flora. 



Q. velutina Lam. Q. tinctoria Bartram. Q. coccinea var. 

 tinctoria A. Gray. Black oak. Quercitron. Large forest 

 tree. Maximum height, about 150 feet ; trunk diameter, 5 feet. 

 O. S. April, May. Fruit maturino- the next season. M. 



Q. digitata (Marsh.) Ludw. Spanish oak. (Q. falcata 

 Michx.) Maximum height, 90 feet by 5 feet diameter. In sili- 

 ceous soil. May, June. Acorns ripe in October. 



Q. nana (Marsh.) Sargent. Q. ilicifolia Wang. Bear or 

 scrub oak. Dry, gravelly places in the barrens. May. 

 Acorns maturing in October. 



Q. Marylandica McBnch. Black-jack oak. Stony, gravelly 

 ridges, siliceous formations. O. S. May, June. Acorns ma- 

 ture in October. 



Q. nigra L. Water oak. Maximum height, about 80 feet ; 

 diameter, 4 feet. In siliceous and argillaceous soils. M. and 

 E. Tenn. Prefers the banks of streams. Ocoee Valley. April, 

 May. Acorns in September, October. Fruiting the second 

 year. 



Q. Phellos L. Willow oak. Large tree, attaining from 80 

 to 100 feet by 3 feet diameter. Prefers moist situations in ar- 

 gillaceous soils. O. S. April, May. Fruit maturing in Sep- 

 tember. Fruiting the second year. 



Q. imbricaria Michx. Shingle oak. Attaining 100 feet by 

 3^ feet diameter. Especially frequent in the basin of M. Tenn. 

 April, May. Fruit maturing the second year. 



Q. alba L. White oak. Maximum height. 150 feet by 5 

 feet diameter. O. S. May, June. xA-corns mature in Septem- 

 ber, October, il. 



Q. minor (Marsh.) Sargent. Post oak. Biggest size, 100 

 feet; diameter of trunk, 4 feet. In dry soil. O. S. May, 

 June. Acorns mature same year in September, October. 



Q. lyrata Walt. Overcup oak. In moist soil, mostly in 

 M. Tenn. Height, 100 feet by 3 feet diameter. April, ]\Iay. 

 Fruit maturing the first season. 



Q. macrocarpa Michx. Mossy cup or bur oak. A large 

 tree , attaining 160 feet by 8 feet diameter. Loves rich bot- 

 tom lands. O. S. May, June. Acorns maturing the same 

 season. They are sometimes 2 inches high. 



Q. platanoides (Lam.) Ludw. O. bicolor Willd. Swamp 

 white oak. A large tree, attaining no feet by 9 feet diameter. 

 Mississippi bottoms. May, June. Acorns mature in Septem- 

 ber. October. 



Q. Michauxii Nutt. Cow oak. Attaining 100 feet by 7 feet 

 diameter. Rich bottom lands. O. S. April, May. Acorns 

 ripe in September. October. 



Q. Prinus L. Rock chestnut oak. Rocky, but rich, hill- 



