420 
SUMMARY OF CURRENT RESEARCHES RELATING TO 
New Species of Spirogyra, with Unusual Arrangement of the 
Chromatophores. — Mabel L. Merriman ( Amer . Journ. Bot 1922, 9, 
283-4, figs.). A description of a new species of Spirogyra , 8. rectispira , 
collected in New York City, and having filaments as thick as those of 
S. crassa (150-160//.), but distinguished from that species by having- 
much smaller zygospores, and by the arrangement of its chromatophores, 
which are not spirally situated but longitudinal, parallel to the axis of 
the filament. Also the chromatophores of S. rectispira are much 
narrower, and the pyrenoids with their starch accretions much smaller 
than those of 8. crassa. Both species grow together ; but they never 
hybridize. A. G. 
Algae from Merano. — K. Munster Strom {Nuova Notarisia, 1922, 
33, 126-34, figs.). An account of some fresh-water algae collected at' 
Merano in the Italian Tyrol in the autumn of 1921, from the only tarn 
in the district, from brooks, and from the trunks of trees. In all, forty- 
three species are enumerated, mostly desmids (including one new 
species). A. G. 
V 
Investigation of Algae in Moravia. — R. Dvorak ( Nuova Notarisia , 
1922, 33, 135-38). A summary of the researches that have been 
carried out on the fresh-water algae of Moravia. J. Nave in 1863 
recorded 407 species. Rudolf Dvorak and Oskar Richter have in later 
years published many additions, as also have Silvester Prat and 
R. Fischer. And a table is given which shows the progress made, and 
reveals a grand total of 1235 species. Notes on the more interesting 
species and forms are added. • A. G. 
Notes on Some Algae from British Columbia. — Wi. Randolph 
Taylor (. Rhodora , 1922, 24, 101-11, fig.). An enumeration of sixty- 
two fresh-water algae collected in the late summer of 192 1, during a 
camping expedition in the mountains of British Columbia, principally 
in the Selkirk and Eagle Pass ranges. Despite lack of transport, 
seventy samples were collected, half from alpine attitudes, half from 
low levels. A new species, Rhizoclonium selJcirkii is described and 
figured ; and a series of notes on the collection is given. A. G. 
Charophyta Collected in Ceylon. — James Groves {Journ. Linn. 
Soc. Bot., 1922, 46, 97-103, 1 pi.). An account of two collections of 
Charophyta by Thomas Bates Blow in Ceylon (1895 and 1898), com- 
prising nine species of Nitella and four of Ghara. Nitella leptodactyla 
is new to science, and is described and figured. A. G. 
Additions to Oceanic Algology. — Angelo Mazza ( Nuova Nota- 
risia , 1922, 33, 97-125). A study of typical samples of certain genera 
of marine algae — Bonnemaisonia and Ricardia \1 species of each) ; also 
in the Rhodomelaceae the genera Laurencia (2 species), Codoclonium (1), 
Ghondria (2) with 3 sub-genera ; a third species, Gliondria crassicaulis 
Harv. from Japan, is discussed with the feeling that it should be 
excluded from the genus. A. G. 
Life-history of Laminaria and Chorda. — J. Lloyd Williams 
(Journ. of Bot., 1922, 60, 191). A brief account of the sexual re- 
