200 Rhodora [August 



Panicum virgatum var. cubense in Michigan. — In August of 

 1920, while engaged in field work for the Michigan Geological and 

 Biological Survey in the Jack Pine Plains south of Burt Lake, Che- 

 boygan County, Michigan, the writer found an interesting Panicum 

 which was later identified as Panicum virgatum L. var. cubense Griseh. 

 Panicum virgatum L. has been reported from several stations in Mich- 

 igan; it is listed in Beal's Michigan Flora as infrequent. Var. cu- 

 bense Griseb., however, has not, so far as the writer is aware, been 

 reported from the state, nor from any inland station. According to 

 Hitchcock and Chase (The North American Species of Panicum, 

 Cont. Nat. Herb. vol. 15, p. 92) its range of distribution is the At- 

 lantic Coastal Plain from Connecticut to Florida; also in the Ber- 

 mudas and Cuba. It seemed so far out of range in northern Michigan 

 that I submitted a specimen of the material to Professor A. S. Hitch- 

 cock, w r ho verified my determination. 



The plant was found in one locality only, namely in a depression 

 where the sandy soil was considerably more moist than the soil 

 typical of the Jack Pine Plains. In this locality it was fairly abun- 

 dant and exhibited a vigorous growth. — J. H. Ehlers, University of 

 Michigan. 



Vol. 23, no. 270, including pages 153 to 180, was issued 24 October, 1921. 



