110 BOTANICAL GAZETTE [aveust 
| 
the cell wall as to be confined to one side and the radiate 
arrangement of the coloring matter may or may not occur. The 
method of zoospore formation is certainly the same as described 
by Klebs (10) for Chlorochytrium Lemne, namely by successive 
division, Even the manner in which the zoospores escape seems 
to vary, and the presence or absence of the colorless tube is of 
but little consequence. 
It may be questioned whether or not the material found a 
Lynn really was. Chlorocystis, since it fails to agree with any 
published account. Certainly much the easier way would be to - 
regard it as a new genus. But while the plants found do not 
agree with the keys in de Toni, and Engler and Prantl, or with 
any other published account, the points of resemblance are very 
marked when all the literature is considered as a whole and the 
various generic characteristics correlated. The few papers of 
the subject are strangely at variance, and the figures in at eee 
one case do not agree at all with the accompanying description 
nor with the specimens distributed by the author. Consequently 
it seems a case where we are justified in disregarding certall 
published accounts and in considering that the form above 
described is really what Wright and Reinhardt meant for the 
plant Chlorocystis Cohnii. 
DARTMOUTH COLLEGE, 
Hanover, N. H. 
BIBLIOGRAPHY. 
: eo 
t. COHN, F.: Ueber parasitische Algen. Beitrige zur Biologie 4. Pia 
2:87-108. 1872. 
Bull. de la Sociéte Bel i : 144. 1G D. L : 
Die natiirlichen Pflanzenfamilien, Alge® a 
1:65. 1897, : 
6. FaRLow, W.G.: The marine algee of New England 115. Washingt 
1881, . 
7. HARVey, W. H.: Phycologia Brittanica 4: f/. 254. 1846-1851- 
