1911] Pease,— Helianthus subrhomboideus in New Hampshire 103 
Massachusetts. Quite likely it is often taken for B. ternatum, var. 
intermedium, with which indeed, so far as can be judged from her- 
barium series, it seems to intergrade, while at the other end speci- 
mens with less and less obtuse pinnules taper off into B. obliquum. 
The examination of much material, both in the Gray Herbarium and 
my own collection, has practically convinced me that through this 
form B. obliquum and B. ternatum, var. intermedium inosculate. 
Lycopodium clavatum, var. megastachyon Fernald & Bissell. On 
24 November, 1910, in a grove of Pinus rigida in a pasture in Sharon, 
Massachusetts, I came upon a clubmoss which I recognized as this 
recently described variety, with which I had become familiar in the 
summer of 1909 in Hillsboro County, New Hampshire. Of the three 
sheets collected, one sheet (2026), having nine one-spiked peduncles 
to one two-spiked, must be called nearly typical megastachyon. The 
other two sheets, which together show seven unispicate and nine bi- 
spicate peduncles, are very good intermediates. In the original de- 
scription this variety was recorded from the western part only of the 
state. 
* 
STOUGHTON, MASSACHUSETTS. 
HELIANTHUS SUBRHOMBOIDEUS IN New HawrsumE.— On 11 
September, 1908, T collected in fruit along the Grand Trunk Railway, 
about a mile northwest of Gorham, New Hampshire, an unfamiliar 
composite. A few days later, 23 September, 1908, Mr. A. H. Moore 
and I found the same species in the Grand Trunk freight-yards at 
Berlin, New Hampshire, about five miles from the former locality. 
On 18 July, 1910, the Gorham locality was revisited and the plants 
were found to have increased considerably in numbers and to be com- 
ing into flower. Specimens were sent to the Gray Herbarium where 
Professor Fernald kindly identified them as Helianthus subrhomboideus 
Rydb., a native of high plains of the Northwest and not hitherto 
reported from the range of Gray's Manual. The existence of two 
stations and the tendency of one of them to spread suggest that this 
species may be expected along the Grand Trunk in adjacent western 
Maine and northeastern Vermont and that it may become a permanent 
addition to our flora. Specimens from both stations are in the her- 
barium of the writer and one from the Gorham locality has been 
placed in the Gray Herbarium.— ARTHUR STANLEY Pease, Urbana, 
Illinois. 
