192 IOWA ACADEMY OF SCIENCES. 



The flowers appear in May and June, and the acorns 

 ripen in September and October. Within Iowa the species 

 is widely distributed. The species ranges northward into 

 Minnesota, southward into Missouri, eastward to Maine, 

 but apparently not to the westward of Iowa. Our speci- 

 mens are from Johnson, Appanoose, Decatur, Ringgold, 

 Fremont, and Pottawattamie counties. We have observed 

 the species in Allamakee, Dubuque, Jackson, Scott, and 

 Taylor counties. The State University herbarium con- 

 tains specimens from Delaware county. Professor Fink 

 reports the species from Fayette county; Mr. Reppert, 

 from Muscatine county; Professor Hitchcock, from vStory 

 and Blackhawk counties; Professor Macbride, from Hum- 

 boldt county; and Mr. Mills, by letter, from Henry county. 



Arthur, Contr. to the Flora of Iowa, p. 29; Hitchcock, 

 Trans. St. Louis Acad, of Science, Vol. 5, p. 518; Fink, 

 Proc. Iowa Acad, of Sciences, Vol. 4, p. 101; Fitzpatrick, 

 Proc. Iowa Acad, of Sciences, Vol. 5, p. 128 and p. 164; 

 Vol. 6, p. 196; Iowa Geol. Sur., Vol. 8, p. 314; Cameron, 

 low-a Geol. Sur., Vol. 8, p. lOS; Macbride, Iowa Oeol. Sur., 

 Vol. 4, p. 119; Vol. 7, p. 107; Vol. 9, p. 153; Vol. 10, p. 648; 

 Rei:fpert, Iowa Geol. Sur., Vol. 9, p. 387; Sargent, Forest 

 Trees of N. A., p. 148. 



Quercns vehd'ina Lam., Encycl., 1:721, 1783. Black Oak. 

 Quercitron. This species very much resembles Quercus 

 cocci nea Wang.; the outer bark is dark brown, rougher, the 

 inner bright orange; leaves pinnatifid or lobed to beyond 

 the middle, brown-pubescent or stellate-pubescent when 

 young, glabrous when mature, dull green above, pale 

 green and usually pubescent on the veins beneath, leaf- 

 lobes triangular-lanceolate or broad-oblong, usually 

 coarsely toothed at the apex, lobes and teeth bristle- 

 tipped; acorn ovoid, about twice the length of the cup, cup 

 hemispheric or top-shaped, commonly short-stalked, scales 

 more or less pubescent, the upper somewhat squarrose. 

 Quercus tinctoria Bartram, Travels, 37, name only, 1791; 

 Quercus cocci nea var. tinctoria A. Gray, Man., Ed. 5, 454, 

 1867. 



