98 MICHIGAN ACADEMY OF SCIENCE. 



STAPHYLEACE^E DC. Bladder-nut Family. 



STAPHYLEA L. 



*1419. S. trifolia L. American Bladder-nut. Marquette Co., and southward, Burt. 

 Frequent along river banks in L. P. Th. 



ACER ACE JE J St. Hil. Maple Family. 

 ACER L. 



*1420. A. Negundo L. Box Elder. Ash-leaved Maple. Th. Negundo aceroides 

 Moench. River banks. A small tree. West of Lake Superior, and north to Saskatche- 

 wan Valley. Macoun in Candian Cat. Frequent in Grand River Valley; escaped from 

 cultivation in St. Clair Co., C. K. Dodge; Belle Isle, Alma, Ann Arbor, C. A. Davis. Th. 



*1420a. A. nigrum Michx. Black Sugar Maple. A. saccharinum nigrum T. & G. 

 Common. C. & S. 



1421. A. Pennsylvanicum L. Striped Maple. Abundant in U. P. Whitney; com- 

 mon at Petoskey, and occasional as far S. on the Huron shore as Alcona Co., Winchell 

 Cat.; in the interior as far as Houghton Lake. N. & U. P. 



1422. A. platanoides L. Norway Maple. Banks of Huron River, Ypsilanti, O. A. 

 Farwell. Introduced from Europe. 



*1424. A. rubrum L. Red or Swamp Maple. On low ground and along streams. 

 Very common. Th. 



*1425. A. saccharinum L. Silver Maple. A. dasycarpum Ehrh. Low ground along 

 rivers. Common. C. & S. 



*1426. A. Saccharum Marsh. Rock or Sugar Maple. A. saccharinum Wang. Fre- 

 quent in the U. P., and abundant in the lower, forming extensive groves, either alone 

 or in connection with beech. Th. 



*1427. A. spictatum Lam. Mountain Maple. Common in U. P.; Alcona Co., Winch. 

 Cat.; Crystal Lake, Montcalm Co.; Alma, C. N. & U. P. 



HIPPOCASTANACE^E T. & G. Buckeye Family. 

 AESCULUS L. 



1428. AE. glabra Willd. Ohio Buckeye. Fetid B. Lenawee Co., W. J. B. , Washtenaw 

 Co., O. A. Farwell, and probably in other localities in the southern tier of counties. S 



1429. AE. Hippocasfenum L. Horse-chestnut. Escaped from cultivation. St. Clair 

 Co., C. K. Dodge; Washtenaw and Wayne counties, O. A. Farwell. 



BALSAMINACEJE Lindl. Jewel-weed Family. 

 IMPATIENS L. 



*1430. I. aurea Muhl. Pale Touch-me-not. 7. pallida Nutt. Macomb Co.; Ionia 

 Co.; Sugar Is., Winch. Cat.; Ann Arbor, C. A. Davis. Much rarer than the next. Th. 



*1431. I. biflora Walt. Spotted Touch-me-not. I. fulva Nutt. Keweenaw Co., 0. A. 

 Farwell; Alma, Ann Arbor, C. A. Davis. Southward. 



RHAMNACE^E Dumort. Buckthorn Family. 



RHAMNUS L. 



*1432. R. alnifolia L'Her. Alma, Ann Arbor, C. A. Davis. Common. Th. 

 *1433. R. cathartica L. Buckthorn. Escaped from cultivation. Lansing, and very 

 likely in other portions of the state. 



