CATALOGUE. 
415 
, ALGrM. 
BY PROF. H. C. WOODS. 
Ulva mkrismopedioides, Woods. Sjh Nov. Ainpla ineinl)rann('ra 
late expansa dilute viridis teiniis radiatim et enormitor idlcala, anil)itii ^;v\u^ 
subrotundata ; margine imdulato, iiiterdiiin su])crciia(() ; cclhilis ciionnilcr 
ovalibus vel angularibus, niicleo destitiilis, qiiarteniariis d in limiilias M'rri.s- 
mopediarmn modo obscure associatis. Diam. cell. max. j,,;„„/ .(KM) IT, j.h;- 
runiquc j.^u - 12,000' = -OOOIG' - .00025'.— Foiiii(l iii a itioiinlaiii stream iii Dia- 
mond range, Nevada ; G.OOO feet altitude. (1,545.) 
Lemanea CATENATA, Kiitz. AViUi the last. (1,546.) 
Batrachospermtjm VAGUM, Kiiiz (:') Vage i-aDiosissimum, iiiii-vcl Iri- 
pollicare, fu scum vol a^rugineuin ; inteniodiis infcrioribus ramdlis uiimci-osis 
()l>S(\^sis, supcrioribus midis v<'] suljnudis ; ramiilorum arliciilis cxl rciiiis sdis 
longissimis iustructis. Diam. spor, glob, j ';„/ ^ .on;;;;;;'. — 'V\\\^ is rclriTcd 
doubtfully to B. vagum and is very pro)jal)ly a new s|>ecies. I'^iiind i^row - 
iiig on the border of a beaver pond in Pack's Gafion, Uiiitas; 7,000 l(,'et alti- 
tude; July. (1,547.) 
NosTOC CRiSTATUM, Bailey. In cold alpine streams and lakes, on roel^s, 
in the Clover Mountains, Nevada, and in the Uintas ; 9-10,000 feet ahitudc. 
Common in the Alleghany Mountains, and identical witli N. alpinajn^ K., of 
Europe. N. Dickmi, Sutherland, found in the low countries of Central Brit- 
ish America, appears to be the same as our form, though the only pu1>Iished 
descriptions of it are,imperfect. (1,548.) 
Protococcus nivalis, Ag. Not rare on old snows in the alpine regioiis 
ol the Sierras, and in the East Humboldt and Clover .^fountains, Neva<la, 
and in the Uintas, giving a pale-pink tinge to the drifts. July-Septem- 
ber. (1,549.) 
Several other forms of fresh-water Algcc were collected, but not in 
suitable condition for determination. 
