424 
those at the base of the culm crowded and equitant; ligule a ring 
of short hairs ; leaves smooth and glabrous, glaucous, 4’-15’ long, 
2-4” wide, abruptly acute, the uppermost culm leaf short, and 
usually remote from the infloresence, or often wanting ; spikes 
4-6, 3'-5’ long, erect or slightly spreading ; spikelets divergent to 
the triangular rachis, which is scabrous onthe angles ; empty scales 
of the spikelet 1-nerved, scabrous on the keel, the first ovate, 
acute, about two-thirds as longas the second; second 2-toothed, 
the teeth obtuse and erose at the apex, oblong, 11%4’’—2” long, 1n- 
cluding the scabrous awn which is 14” long; third scale about 
144” long including the awn which is 14” in length, brown, ovate, 
3-nerved, the nerves pubescent with long ascending hairs; fourth 
scale empty, 1” long, elliptic in outline, cucullate, remote from the 
third, bearing an awn about 14” long just below the apex; seed 
34’’ long, narrowly oval in outline, triangular, translucent, yellow- 
ish streaked with purple. 
Resembles C. Floridana Vasey; that species differs in having 
only 1 or 2 spikes; larger spikelets having 5 scales and 2 flowers, 
the upper one staminate; second empty scale broad and rounded 
at the erose apex; the hairs on the nerves of the third scale 
shorter; the fourth scale obovate and obliquely truncate at the 
apex. 
Collected by the writer near Orange Bend, Lake Co., Florida, 
during the past summer, in low pine lands, no. 2149. It was also 
secured by A. H. Curtiss at Jacksonville in 1875 ; his number 3445 
is the same. Fredholm obtained it along the banks of the St. 
John’s River in Duval Co., Florida, in 1893, no. 319. 
Notes on some Cyanophyceae of New England. 
By WILLIAM ALBERT SETCHELL. 
The-Cyanophyceae or Blue-Green Algae of the United States 
are little represented in collections and exsiccatae, and their occut- 
rence and distribution is in great need of more careful study. For 
many years there has been a lack of good monographs relating to 
the group, and the redescribing under many different names of 
the same form made the matter of the identification both of gen- 
era and of species so difficult that there has been little temptation 
to the ordinary student to pay any attention at all to any of the 
forms. 
