340 
The fronds seldom reach a height of 15 millimeters, and consist 
of a terete stipe, sometimes forking, and ending in a rather nar- 
row lamina, simple or once divided; along the margins of the 
lamina are often numerous ciliz, in which the cystocarps are 
formed, usually in the winter months. The color is a bright 
red, and the fronds usually grow in rather dense patches. Ihave . 
found it from Cohasset, Mass., to Penobscot Bay, Maine. It is 
figured and described in Batters’ List of the Marine Alge 
of Berwick-on-Tweed, p. 114, Tab. xi. 
Gymnogongrus Griffithsie (Turn.) Martius. I found this plant 
in September, 1886, forming densely matted tufts scarcely two 
centimeters high on small pebbles just below low water mark, in 
an arm of the sea known as the “Salt Pond”’, Eastham, Mass. 
It grew in company with Gelidium crinale, which it considerably 
resembles in habit, though easily distinguished on closer exami- 
nation by its irregular branching. The nemathecia were abun- 
dant, forming small wart-like swellings on the branches, mostly: 
at the axils. 
In addition to the above mentioned, which I have myself 
found, the two following species have been found by Dr. W. A. 
Setchell. 
Entocladia Wittrockit, Wille, a plant consisting of slender, 
irregularly branching green filaments, living in the cell walls of 
various filamentous alge, which are more or less distorted by it. 
The cells are about .oog mm. diam.,the end cells slenderer and 
quite long. Zoospores are formed in single, more or less 
swollen cells. Dr. Setchell has found it at several points on the 
coast, and it is probably not uncommon. Figured in Hauck, 
Deutschlands Meeresalgen, fig. 199. 
Pringsheimia scutata, Reinke,a curious green alga forming 
disk-like expansions on alge, etc., reminding one somewhat of 
the fresh water genus Coleochete. The resemblance, however, 
is merely superficial, the elaborate sexual fructification of Coleo- 
chete being entirely wanting, reproduction taking place either by 
non-copulating miacrozoospores, or by copulating microzoo- 
spores, the two forms being produced on separate plants. It is 
described in Reinke, Algenflora, etc., p. 81, and figured in the 
