202 Rhodora [October 



long, mucronate at base, the cells constricted above to prominent 

 arched necks : style similar to that of P. rotundifolia. — Bale des 

 Chaleurs, Quebec to South Dakota and Georgia; Japan, Korea, 

 Manchuria. 



P. GRANDiFi.ORA, Radius, Diss. Pyrol. 27, t. 3, fig. 2 (1821). P. 

 rotundifolia, vax. piimihi^ Hornem. dansk. oecon. Plantel., ed. 3, 463 

 (1821). P. ^roenlandiai, Hornem. Fl. Dan. xi. t. 1817 (1825). P. 

 pumila, Hornem. ex Cham. <S: -Schl. Linnaea, i. 514 {1826). P. 

 rotundifolia, var. grandiffora, DC. Prodr. vii. 773 (1839). Thclaia 

 grandifora, Alefeld. Linnaea, xxviii. 68 (1856). Plant 5 to 1 6 (aver- 

 age 10) cm. high: leaf-blade i to 3 (average 2) cm. long: petals 

 thick, white to crimson, 7.5 to 11 (average 8.7) mm. long: stamens 

 4 to 5.5 (average 5) mm. long; the anthers 1.7 to 2.3 (average 2) 

 mm. long, muticous at base, the cells barely constricted above : style 

 without annulate tips. — Greenland and Arctic America, south to Hope- 

 dale, Labrador. 



Gray Hkrbarium. 



NOTES ON 'IHE FLORA OF BERKSHH^E COUNTY, 

 MASSACHUSETTS. 



Ralph Hoffmann. 



The following records from Berkshire County, Massachusetts, may 

 be of interest. They refer to plants which either have not hitherto 

 been recorded from Massachusetts, or are known from very few sta- 

 tions in the state. These plants fall into more or less well-defined 

 groups. In the cold sphagnum bogs and on the higher mountains 

 occur northern plants which either reach or approach their southern 

 limit for New England in Berkshire County. The western and south- 

 ern river valleys, on the other hand, extend into New York or Con- 

 necticut, and on their well-drained slopes occur plants which for the 

 most part have been prevented by the unbroken Hoosac Plateau from 

 extending their range into central Massachusetts. Two or three plants 

 are advent ive but at least one is well-established. 



Specimens of all the plants here recorded have been placed in the 

 Herbarium of the New England Botanical Club. They have all been 

 collected by me except in three instances where the plants were gath- 

 ered by Mr. M. L. F'ernald. I have to thank Mr. Fernald for his 



