238 Rhodora [NOVEMBER 
between Canaan and Twin Lakes, Salisbury; on dripping rock, East 
Rock, New Haven; on sandy ground, shore of Fresh Pond. Oct.- 
Dec. 
Dichothrix gypsophila (Kütz.) Born. & Flah. 1425, 1439. Gay- 
lordsville, rapids of Housatonic River, near Kent, on limestone, river 
shore; narrow form, incrusted. Oct. 
D. Hosfordii (Wolle) Born. & Flah. 501,508, 514,957 =P. B.-A. 
215b, 1197. On stones on border of pool below Factory Pond, Pe- 
quonnock River. June, July, Oct., Nov. 
D. Orsiniana (Kütz.) Born. & Flah. 1124, 1131 =P. B.-A. 405. 
On stone work at base of Factory Pond dam. July. 
Gloiotrichia Pisum (Ag.) Thuret. 736,737. Twin Lakes, Salis- 
bury, floating and on pond weeds. Oct. i 
Spirogyra bellis (Hass.) Cleve. 882. Pequonnock River, Turn- 
bull. Oct. 
S. nitida (Dillw.) Link. 619, 620, 630 — P. B.-A. 513, 643. 
Island Brook, below dam at R. R. “July 19, Last of the season." 
S. varians (Hass.) Kütz. 582. Roadside near Brookfield. May. 
S. sp.? 595, 600, 607, 632, 652. Fresh Pond. May-July. 595. 
“Grows in abundance, floating in thick patches, along with C/ado- 
phora, Enteromorpha, etc. Dissepiments not replicate; diameter of 
cells uniformly about 374; length of cells 8—22 times the diameter; 1 
or 2 spirals, making 2 or 3 to ro or more turns; rarely 3 spirals." 
607, “Spores seem to be forming in some cells without conjugation, 
after the manner described by DeBary (Die Conjugaten, p. 7, Pl. I. 
fig. 4). Sometimes 2 spores (?) in one cell; sporiferous (?) cells 
somewhat swollen, spores (those apparently nearest maturity) light 
buff colored, elliptical.” 632, “In side pool from which I formerly 
took best specimens of Monostroma latissimum. Cells generally 
about 27 or 284 in diameter, length generally 3-6 diameters, spirals 
2 or rarely 3 turns, about 3 in a cell of full length. Dissepiments 
not replicate. Zygospores ellipsoidal, 56-874 long by 31—374 wide. 
Female cell swollen just enough to contain zygospore. With Oscil- 
latoria which appears to be O. princeps.  ? Whether this is not the 
same as 595. Water in this pool (which is now cut off from the 
main body by a sand bar) may be a little less salt; ?Whether this is 
the reason of its fruiting.” ! 
Zygnema pectinatum var. anomalum (Mass.) Kirchn, 60s. Pe- 
quonnock River, below Factory Pond dam. June. 
