Rhodora 
JOURNAL OF 
THE NEW ENGLAND BOTANICAL CLUB 
Vol. 11. April, 1909. No. 124 
TWO NEW SPECIES OF CHARACIUM.! 
F. D. LAMBERT. 
(Plate 79.) 
Characium gracilipes n. sp. Cellula 80-480 » longa, 5-13 и diam., 
regulariter curvata, parte media fusiformis, superne in setam longam, 
inferne^in stipitem longam filiformem attenuata, rhizoideis minutis- 
simis substrato affixa. 
Cells 80-480 y long, 5-13 & diameter, regularly curved; middle part 
fusiform, tapering above into a long hair, below into a long filiform 
stipe, attached to the substratum by very minute rhizoids.— On the 
minute crustacean, Branchipus vernalis, Medford, Massachusetts, 
May, 1903, 1904, 1905, and 1906. 
In May, 1903, while I was collecting with a class in biology, in 
Medford, Mass., on the edge of the Middlesex Fells, one of my stu- 
dents called attention to a small green object moving about in a small 
pool. On examination it proved to be a fairy shrimp, Branchipus 
vernalis, one of the animal forms for which I was searching, and as 
its color was so very unusual, a number of the animals were collected 
and carried to the laboratory. А microscopic examination showed 
that the green color was due to masses of green algae attached to 
various parts of the body, particularly to the appendages. Аз it 
seemed likely that the plant might be of interest and perhaps also 
might be desirable for distribution in the Phycotheca Boreali-Ameri- 
cana, some of the Branchipus were submitted to Mr. F. S. Collins for 
identification of the algae, who immediately reported that they were 
apparently two new species of Characium. Only a few of the 
1 Contributions from the Biological Laboratories of Tufts College, No. 48, 
