70 MICHIGAN ACADEMY OF SCIENCE. 



QUERCUS L. 



•825. Q. acuminata (Michx.) Houda. Chestnut or Yellow Oak. Q. Muhleribergii 

 Engelm. Rich woods. A medium sized tree. Alma, Ann Arbor, 0. A. Davis. C. & S. 



*826. Q. alba L. ^Vhite Oak. Rich woods. Rare in U. P., Menominee Co., Burt. 

 MS. Cat. Common. Th. 



827. Q. Alexanderi Britton. Alexander's Oak. Birmingham, Oakland Co. S. Alex- 

 ander; Addison, Lenawee Co., O. C. McLouth. Moist land adapted to swamp white 

 oak, bitternut and American Elm. 



828. Q. borealis Michx. Gray Oak. Q. rubra borealis (Michx.) O. A. Farwell, 

 similar to Red Oak. Keweenaw Co., O. A. Farwell. Referred by Elgelmann to Q. 

 rubra L. 



*829. Q. coccinea Wang. Scarlet Oak. Frequent. L. P. 



830. Q. coccinea x palustris Hill. Detroit, O. A. Farwell. Frequent. 



831. Q. ellipsoidalis E. J. Hill. Hill's Oak. A tall tree on moist sandy land. West 

 of Ann Arbor, C. A. Davis. 



832. Q. imbricaria ]\Iichx. Laurel or Shingle Oak. Barrens, Galesburg, H. Dale 

 Adams; Ann Arbor, C. A. Davis; Sturgis, F. P. Daniels; S. Mich., Dr. Wright. Rare. 



833. Q. Leana Nutt. Q. imbricaria x velutina Jackson, S. H. Camp; Ann Arbor, 

 C. A. Davis. 



*834. Q. macrocarpa Michx. Burr Oak. Over-cup or Mossy-cup Oak. Rich soil. 

 Common. A form of this oak occurs in Cheboygan Co., B. & K. Lower falls of Menom- 

 inee River, the farthest north of any station in the State, C. F. Wheeler. Th. 



835. Q. palustris DuRoi. Swamp, Spanish, or Pin Oak. Only seen in the S. por- 

 tion of the State; Port Huron, C. K. Dodge; Belle Isle; Monroe Co.; Jackson, Mar- 

 shall, W. J. B. ; Algonac, W. S. Cooper; Ypsilanti, C. A. Davis. 



*836. Q. platanoides (Lam.) Sudw. Swamp ^Vhite Oak. Q. bicolor Willd. Low 

 ground. A large tree. Common. C. & S. 



837. Q. prinoides Willd. Dwarf Chestnut Oak. A low shrub or small tree. Macomb 

 Co.; Barron Lake, Cass Co.; Brighton, Dr. J. B. Steere; Hubbardston; Muir; Gratiot 

 Co., Washtenaw Co., C. A. Davis. Infrequent. C. & S. 



*838. Q. rubra L. Red Oak. In the C. & S., a large tree. 



839. Q. Schneckii Britton. Schneek's Red Oak. Q. Texana Sargent. Texas Oak. 

 Wet woods, east of Ypsilanti, C. A. Davis. 



*840. Q. velutina Lam. Black Oak. L. P. Q. coccinea tinctoria A. Gray. This 

 species and Q. coccinea occur together in the C, and are seldom large — usually 40-50 ft., 

 and 12-15 inches in diameter. 



ULMACEiE Mirbel. Elm Family. 



ULMUS L. 



*841. U. Americana L. White or American Elm. Low grounds. Common. Th. 

 *842. U. fulva Michx. Slippery or Red Elm. Rich soil. Frequent. Th. 

 *843. U. racemosa Thomas. Cork or Rock Elm. River banks. Frequent. Th. 



CELTIS L. 

 *844. C. occidentalis L. Hackberry. Sugarberry. River banks. Frequent. C. & S. 



MORACE^ Lindl. Mulberry Family. 

 MORUS L. 



845. M. alba L. AVhite Mulberry. Ypsilanti, O. A. Farwell; Birmingham, S. 

 Alexander. 



*846. M. rubra L. Red Mulberry. A small tree on river bottoms. Ann Arbor, 

 C. A. Davis. C. & S. 



HUMULUS L. 

 847. H. Lupulus L. Common Hop. Banks of streams. Frequent northward. Th. 



