18 Rhodora [FEBRUARY 
distinctly 2-4-nerved on both sides; achenes ovate or suborbicular, 
1.5-2 mm. long, 1.1-1.5 mm. wide, substipitate, not at all bent or 
contorted.—MassAcHUsETTs: swale by Swan Pond, Dennis, July 
23, 1918, Fernald, no. 16,473; Harwich, June 10, 1916, Winslow & San- 
ford; swale, West Yarmouth, July 22, 1907, E. W. Sinnott; Hyannis, 
July 4, 1874, Wm. Boott. New Jersey: Pemberton, July, 1873, 
Canby (sheaths smooth); New Egypt, June 10, 1905, J. H. Grove, no. 
48; Forked River, June 1, 1896, hb. Joseph Crawford; Albion, June 26, 
1907, Van Pelt, no. 2; rich swampy woods, Cape May Court House 
June 1, 1912, Bayard Long, no. 7245. DELAWARE: swamp, Mills- 
boro, June 18, 1875, Commons. VIRGINIA: open swamp, 3 miles 
west of Williamsburg, June 16, 1921, Grimes, no. 3781. SouTH 
CAROLINA: Santee Canal, May, Ravenel. GEORGIA: bank of wood- 
land stream near Atlanta, May 29, 1901, Curtiss, no. 6802. 
FLORIDA: without date or definite locality, Croom. ALABAMA: 
without definite locality, 1867, Peteers. The New Jersey and Dela- 
ware specimens cited are in the herbarium of the Philadelphia Aca- 
demy of Sciences. 
C. Mitchelliana is a rather striking plant of the Coastal Plain and 
the Piedmont, in its strongly granular perigynia suggesting C. mari- 
tima, but in all other respects clearly a member of the group of C. 
crinita. From all variants of that species, C. Mitchelliana is ordinarily 
well distinguished by the characters given. C. crinita, var. gynandra, 
however, to which C. Mitchelliana is nearest and to which it has 
usually been referred, sometimes has plane achenes; and a single - 
immature specimen from the District of Columbia (Takoma Park, 
May 17, 1903, J. H. Painter, no. 166) suggests an intermediate condi- 
tion in other characters, in that the young perigynia are granular, 
but not nerved, and are somewhat inflated. Two sheets, one from 
western Louisiana, Hale, and one from Texas, Wright, have uncon- 
torted achenes and the perigynia somewhat granular. But the latter 
are nerveless, more or less inflated, and, in the Wright specimen, 
obovate; the spikes are densely flowered and the lower sheaths 
entirely smooth. These plants seem best regarded as an extreme 
phase of C. crinita. NU 
The redescription and citation of specimens above are rendered 
desirable by the vagueness of Curtis's original diagnosis. Indeed, 
the evidence as to the application of the name C. Mitchelliana is 
not altogether satisfactory. Curtis places emphasis chiefly on the 
shortness of the spikes in his plant and mentions none of the perigynial 
characters which set the species, as here interpreted, apart. Prof. 
W. C. Coker, who has kindly interested himself in the matter, informs 
