| a a 
bins 
rs 
147 
Nitella (Tolypella) intricata (Roth.), Ag. 
In a brook below an old mill in Boxford, Aug. 13, 1876. “The 
Tewksbury specimens resemble those gathered by Mr. Wright in 
the Leom river, Texas, being in size between the small specimens 
just mentioned (from Louisiana), and the large showy plants of 
Boxford; Mass. (Robinson) ” (Halsted’s Char.). 
CHAREZ. 
Chara coronata, var. Schweinitzii, A. Br. 
Wenham pond, Aug., 1875; Chebacco pond. The typical form of 
this species grows near Boston. 
Chara gymnopus, var. elegans, A. Br. 
Pleasant pond, Wenham, Aug., 1875. ‘‘The variety elegans seems 
to have been first found in America by Oakes. In the Gray her- 
barium is a specimen collected by him, which, however, bears neither 
sedate nor locality. It probably came from Essex county, Mass., where 
the variety has been recently re-discovered by Mr. John Robinson, 
who reports that it is rather common in Chebacco lake.” Among 
the specimens in alcohol sent by Mr. Robinson, a deviation from 
the variety form was found. The difference is confined entirely 
to the leaves, the more slender nature of which, as well as its much 
shorter bracts at the sterile joints, is noticeable. The excessive 
length of the bracts around the sexual organs is in contrast with 
those in the ordinary form. The most striking peculiarity of the 
plant is its not bearing both sexual organs at the same joint. 
Usually, a single sporangium and antheridium were found on each 
leaf, sometimes two sporangia and no antheridium, or two antheridia 
and no sporangium, but never more than two of these organs on 
a leaf, and these at the second and third joints from the base. This 
arrangement of the sexual organs may be considered as steps 
towards a dicecious species, first, in the separation of the organs to 
different joints, and then to different leaves. This form is of great 
interest, and would furnish a fine subject to one who loves such 
deviations, and can procure an abundance of specimens” (Halsted’s 
Char.). 
1Since the above was written, Dr. T. F. Allen of New York, whose mono- 
graph of the North American Characez is now in process of publication, has 
requested specimens of the Boxford plant, and‘from those sent, he considers 
the species to be 
Witella polyglochin, A. Br., 
an East Indian species which, as he says, supports a theory regarding certain 
Characez, that he intends presenting before the Torrey Botanical Club very soon. 
2 This should read Pleasant pond, Wenham. 
