Nov., 1915] Notes on the Zygnemales 25 



S. Goetzei Schmidle. 



This species previously known only from the tropics has 

 been found in the collection of Mr. Charles Bullard, from 

 Weimeet, Mass. In herb. E. N. T. Collection No. 2954. 



S. submarina (Collins) nov. comb. 



This species was described by Collins as a variety of S. 

 decimina (Miiller) Kiitz. which it somewhat resembles in the 

 form of the vegetative cells. The spores, however, are dis- 

 tinctly ellipsoid, while those of 5. decimina are ovoid. The 

 dimensions are much smaller than those of S. decimina. It 

 seems better therefore to recognize this as a distinct species. 

 It has been collected in Massachusetts, Connecticut and 

 Bermuda. 



E. ellipsospora Transeau. 



Described originally from Illinois, I have seen specimens 

 during the past year from Maine, Massachusetts and Minnesota. 

 Professor G. S. West* described about the same time a species 

 from Columbia, South America, which appears to be a form 

 of this same species. The vegetative cells are considerably 

 larger, the chromatophores are six (or five) in number, and 

 the spores are at the upper limit of size of the North American 

 form. As our specimens all show, a wider range of dimensions 

 and number of chromatophores, the South American form is 

 best classified as a variety under the name 5. ellipsospora var. 

 splendida (G. S. West) nov. comb. 



S. propria nov. sp. 



Cellulis vegetativis 60-68^ x 80-150/1, dissepimentis planis; 

 chromatophoris 3, anfractibus arctis .5-1; cellulis fructiferis 

 cylindricis; zygosporis ellipticis 42-60/1 x 80-120/i; membrana 

 media sporarum scrobiculis irregularis ornata, luteo-brunnea. 



Vegetative cells 6O-68/1 x 80-150/x, end walls plane; 3 

 chromatophores making .5-1 turn in the cell; fertile cells 

 cylindrical; zygospores ellipsoid, 42-60/x x 80-120/t, median 

 wall irregularly pitted, yellow-brown. Type in herb. E. N. T. 

 Coll. No. 266G. Coffeen, Illinois. 



*West, G. S., A contribution to our knowledge of the Freshwater Algae of 

 Columbia. Memores de la Societe neuchateloise des Sciences Naturelles 5:1013- 



1051. Neuchatel, 1914 



