IOWA ACADEMY OF SCIENCES. 193 



The Quercitron is infrequent in Iowa, and occurs in 

 upland woods. The species is readily distinguished in the 

 woods, but not so readily from the herbarium specimens. 

 The color of the outer and inner bark is the safest guide. 

 The pubescence in the axils of the veins beneath varies, 

 and is to be found in Qaercus cocchiea Wang. The squar- 

 roseness of the scales intergrades. 



The Quercitron has been confused with the scarlet oak 

 to such a degree by Iowa botanists that it is extremely 

 difficult to give any definite information regarding its 

 range in Iowa. The reports of the species from eastern 

 Iowa seem, the more credible. We have looked upon 

 the reports from western Iowa with considerable suspicion. 



For many years the species has been recognized as 

 occurring in Johnson county. Dr. White reported the 

 species from Iowa, and was quoted by Professor Bessey. 

 Professor Macbride reported the species from Dubuque and 

 Humboldt counties; Messrs. Nagel and Haupt, from Scott 

 county; Professor Pammel, from Hardin county; Profes- 

 sor Fink, from Fayette county; Mr. Gow, from Adair 

 county; Mr. Rigg, from Calhoun county; and Messrs. 

 Barnes, Reppert, and Miller, from Scott and Muscatine 

 counties. 



White, Geol. Sur. of Iowa, Vol. 1, p. 13S; Bessey, Contr. 

 to the Flora of Iowa, p. 119; Arthur, Contr. to the Flora 

 of Iowa, p. 29; Nagel and Haupt, Proc. Davenport Acad, 

 of Nat. Sciences, Vol. 1, p 163; Fink, Proc. Iowa Acad, of 

 Sciences, Vol. 4, p, 101; Cow, Proc. Iowa Acad, of Sci- 

 ences, Vol. 6, p. 61; Cameron, Iowa Geol. Sur., Vol. 8, p. 

 198; Macbride, Iowa Geol. Sur., Vol. 7, p. 107; Vol. 9, p. 

 153; Vol. 10, p. 648; Pammel, Iowa Geol. Sur., Vol. 10, p. 

 313; Barnes, Reppert, and Miller, Proc. Davenport Acad, 

 of Nat. Sciences, Vol. 8, p. 256; Rigg, Notes on the Flora 

 of Calhoun county, p. 25. 



Quercus ellipsoidalisFt. J. Hill, Botanical Gazette, Vol. 27, 

 p. 204, 1899. Tree twenty-five to sixty feet high, one to three 

 feet in diameter, bark rather smooth, shallow-fissured, dark- 

 ish colored near the ground, dull gray above, dull red within, 



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