Rbodora 
JOURNAL OF 
THE NEW ENGLAND BOTANICAL CLUB 
Vol. 1 November, 1899 No. 11 
TWO NEW SPECIES OF MARINE ALGAE FROM 
BRIDGEPORT, CONNECTICUT. 
Isaac HOLDEN. 
For some years past, both marine and fresh water algae have been 
so persistently sought for in the waters of Bridgeport and vicinity that 
additions, even to the local list, are not now very frequent. It is a 
source of some satisfaction, therefore, to be able to report the two fol- 
lowing species, which seem to be quite new and certainly have some 
interesting peculiarities. Perhaps no species of Hydrocoleum has here- 
tofore been reported from still water (See Gomont’s Monographie 
des Oscillariées). 
The only stations in which the two plants have as yet been found, 
though carefully sought for elsewhere, are in the same marsh and only 
a few rods apart. 
Hydrocoleum majus, n. sp. Stratum dark aeruginous. Sheaths 
agglutinated, forming mostly an amorphous, gelatinous, diffluent mass, 
from which the outer extremities of the trichomes project, naked or en- 
veloped in broad ragged sheaths, or the trichomes escape entirely and 
become independent.  Trichomes aeruginous, not contracted at the 
nodes, 25-30 p in diameter; articles 5-10 times shorter than the 
diameter of the trichome (3-6 y long); dissepiments granulated ; 
apex attenuate-truncate ; apical cell conspicuously calyptrate. 
Found in brackish marsh ditches, forming a gelatinous, tubular 
coating on old stems of Spartina, later floating; occurring at Bridge- 
port, Connecticut, in late spring and early autumn, disappearing in 
winter and in the heat of summer. Distributed in Collins, Holden 
and Setchell, Phycotheca Boreali-Americana, No. 602. 
The writer first collected this plant in May, 1896, and has since 
observed its appearance regularly in May and September, except in 
the autumn of 1898, when it failed to appear at all. 
