1901] Clinton,— Two new Smuts on Eriocaulon 79 
Rockfield, September, 1900, Adirondack Junction, September, 1900.. 
Well distinguished by its entire calyx-lobes from all the known 
forms of the small group of species distinguished by the longitudinal 
grooves on the inner faces of the nutlets, of which Crataegus tomen- 
fosa, L., is the type. 
COCCINEAE. 
CRATAEGUS COCCINEA, Linnaeus (Sargent, Bot. Gazette, xxxi, 13), 
J. G. Jack, Caughnawaga, 1899, May, 1900, J. M. Macoun, Levis, 
September, 1900, 4. C. Waghorn, Newfoundland, where it is prob- 
ably the only species. Common on the coast of Maine and to be 
looked for in the coast region of the Maritime Provinces and in the 
valley of the lower St. Lawrence River. 
CRATAEGUS COCCINEA var. ROTUNDIFOLIA, Sargent (Bot. Gazette, 
xxi, 14), J. Œ. Jack, near Montreal, August 19, 1887, Isle of Orleans, 
August, 1895, September, 1900, Caughnawaga, October, 1899, May, 
1900, Adirondack Junction, October, 1899, Chateaugay, October, 
1899, May, 1900; 7. M. Macoun, Levis, September, 1894. 
CRATAEGUS PRAECOX Sargent (RHODORA, ill, 27), J. G. Jack. 
Chateaugay and Caughnawaga, May and August 1899. May, 1900. 
ARNOLD ARBORETUM. 
TWO NEW SMUTS ON ERIOCAULON SEPTANGULARE. 
(Contribution from the Cryptogamic Laboratory of Harvard University, No. 46.) 
G. E. CLENTON. 
IN November of last year the writer finding some specimens of 
Eriocaulon septangulare With. at Ellis, Massachusetts, took a few of 
the plants home for herbarium specimens. Examination of the flower- 
heads a few days later disclosed the fact that the ovaries were 
infected with a new species of smut belonging to the genus Tolypo- 
sporium. A visit again to Ellis showed that all of the plants then 
to be found, several hundred, were infected, so it was merely a 
question of collecting all of the heads to get the smut in quantity. 
The fungus is so inconspicuous that one is not likely to discover it 
