HOFFMANN: FLORA OF BERKSHIRE COUNTY. 281 



West Stockbridge ]\It. and Harvey Mt., West Stockbridge; Tom 

 Ball, Alford. Also on a wooded bank at a low altitude in Sheffield. 

 Although this species is commonly considered a calcicole, all the above 

 stations except that in Sheffield were found to be in acid soil. 



A. stolonifera Wiegand. — (A. ohlonqifoHa Man. ed. 7 in part; 

 vid. Rhodora, 14: 144, 1912. A. spicata 111. Fl. ed. 2.) 



Rocky summits and sand-plains. Frequent in the southern part 

 of the valley and on the Taconics. 



Hybrids of Amelanchier. 



Several aberrant specimens of Amelanchier from Berkshire sub- 

 mitted to Professor Wiegand were determined by him as hybrids of 

 A. laevis, in one case probably with A. canadensis and in other cases 

 with an undetermined parent. 



Hybrids of A. canadensis and A. stolonifera from the rocky summit 

 of West Stockl)ridge Mountain and the sand-plain, Sheffield, have 

 been determined by Professor Wiegand. 



CRATAEGUS. Hawthorn; Red Haw. 



C. anomala Sarg. — North Achims. 



C. Brainerdi Sarg., var. asperifolia (Sarg.) Eggleston. — North 

 Adams; Alford. 



var. scabrida fSarg.) p]ggloston. — Williamstown. 



C. Crus-galli L.— Becket. 



C. foetida Ashe. — (C. Baxteri Sarg.) 



Great Barrington. 



C. Holmesiana Ashe. — Lanesboro; Lenox; Stockbridge. 



C. macrantha Lodd. — (C . ferentaria Sarg.) 



Coinnioii. 



var. rhombifolia (Sarg.) Eggleston. — Great Barrington. 



C. macrosperma A.she. — Common. 



var. demissa (Sarg.) Eggleston. — Lenox. 



var. matura (Sarg.) Eggleston. — (C scrcna Sarg.) 



Lenox. 



var. pastorum (Sarg.) Eggleston. — (C. glaucophyUa Sarg.; C. 

 genialis Sarg.) 



Williamstown; I^enox. 



C. MONOGYXA Jacq. E.NGLisii H.wvTiiGRN. — (C. oxycantha Man. 

 ed. 7; vid. Rhodora, 11: 47, 1900.) 



