1911] Flora of the Boston District,— VIII 27 
Var. OCCIDENTALIS Greene. Leaves fewer, 15-48 (av. 36), bright 
green and glabrous (or if whitened soon glabrate) above, those im- 
mediately below the inflorescence 5-12 (av. 7.8) cm. long, 5-20 (av. 
10) mm. wide.— Gravelly or sandy soils and along streams, Newfound- 
land to Alaska, south to Washington County, Maine, Great Gulf, 
White Mts., New Hampshire, Minnesota, South Dakota, Colorado, 
and California; also in Asia and introduced in Europe. Ascending 
in the Shickshock Mts., Gaspé Co., Quebec, along mountain brooks to 
625 m. and known in New Hampshire only from banks of a stream in 
the Great Gulf, altitude 1070 m. (A. S. Pease). 
REPORTS ON THE FLORA OF THE BOSTON 
DISTRICT,— VIII. 
Tuts report on Cyperaceae has been based on carefully determined 
specimens. These are in the Gray Herbarium, and the herbaria of 
the New England Botanical Club, Wellesley College, the Boston 
Society of Natural History, the Peabody Museum at Salem, and the 
private herbaria of Messrs. J. R. Churchill, Walter Deane, C. A. 
& A. W. Cheever, C. H. Knowlton, A. S. Pease, W. P. Rich, R. A. 
Ware and E. F. Williams. 
There proved to be extant so many specimens over fifty years old, 
that it has seemed best to limit such citations, as they are matters of 
merely secondary interest. Henceforth only such aged specimens as 
are of special note will be quoted. 
The reports received, in connection with the Essex, Middlesex and 
Metropolitan Park Floras, have given adequate data for the common 
species, but there are still very large areas on the west and south which 
are little known. We urge all who have herbaria to join us in this 
work, or to report additions at any time. 
CYPERACEAE. 
CYPERUS. 
C. aristatus Rottb. Sandy strands of fresh-water ponds. Mystic 
Pond (Wm. Boott, Oct. 1, 1876; C. E. Perkins, Aug. 2, 1882; W. P. 
Rich, Sept. 29, 1891); Cambridge (B. D. Greene, no date); Concord 
(H. Little, no date); Heard's Pond, Wayland (E. Hunt, July, 1873; 
