44 Rhodora [FEBRUARY 
Some EXTENSIONS OF Loca RANGEs. — The Report on the Fora 
of the Boston District, Ruopora ix. 85, May (1907), makes no men- 
tion of the occurrence in this section of Dicksonia punctilobula (Michx.) 
Gray, forma cristata (Maxon) Clute. I am, therefore, glad to state 
that it was collected in Sherborn, Mass., August 3, 1912. It was 
found growing with an abundance of the type near the edge of rocky, 
deciduous woods. <A frond was placed with the Boston Society of 
Natural History as No. 1138 of the Flora of Sherborn, Mass. 
The same report characterizes Onoclea Struthiopteris (L.) Hoffm. 
as “rare; not reported from south of Boston." The fact that this 
species was collected in Sherborn December 15, 16, 1912, may be of 
interest. The station was rather large, there being certainly thirty 
or more crowns which were growing on a rocky hill at the side of a 
shady cart-road which gives access to the orchards, woodlots, and 
pastures which border it. Of course at the time of collection the 
sterile leaves were dry and brown; but several mature fertile fronds 
were gathered and sent to the Gray Herbarium and to the Boston 
Society where they are numbered 1199 of the Flora of Sherborn. 
Another interesting collection, July 16, 1911, was that of Sagittaria 
graminea Michx. on the shore of Farm Pond. Material sent to the 
Boston Society was identified by Dr. J. A. Cushman. This species 
is mentioned in Ruopona xii. 4, January (1910), as being reported 
from “scattered stations in northern half of district." The finding 
it at Sherborn, therefore, seems to show an extension of range.— 
Martha Lovise Loomis, Sherborn, Massachusetts. 
ALNUS CRISPA (Ait.) Pursh, var. mollis (Fernald), n. comb. A. 
mollis Fernald, Ruopona, vi. 162 (1904). Extended experiences 
in the field in New England, eastern Canada and Newfoundland 
during the past decade have convinced the writer that, although a 
well pronounced pubescent extreme of less boreal range than true A. 
crispa, A. mollis cannot be kept apart from the older species on any 
absolute characters and is better treated as a variety.— M. L. FER- 
NALD, Gray Herbarium. 
Vol. 15, no. 169, including pages 1 to 20, was issued 7 February, 1918. 
