1900] Collins, — Lists of New England plants, — V. 41 
PRELIMINARY LISTS OF NEW ENGLAND PLANTS, — V. 
MARINE ALGAE.' 
FRANK S. COLLINS. 
[The sign + indicates that an herbarium specimen has been seen; the 
sign — that a printed record has been found.] 
The State of Vermont, having no coast line, is omitted in this list. Massachu- 
setts, however, is divided into two parts, northern and southern, as the most strongly 
marked division line for algae on the whole Atlantic coast occurs here. As regards 
the marine flora, Nahant and Nantucket differ more from each other than the former 
does from Newfoundland, or the latter from Fortress Monroe. The division line is 
usually given as Cape Cod, but as the flora of the inside of the lower cape is the 
same as that of Vineyard Sound, the latitude of Provincetown has been taken as the 
boundary. 
Among the Schizophyceae will be found some species usually classed as fresh 
water algae; but as they were found growing among undoubted marine species, it 
seemed best to include them. 
SCHIZOPHYCEAE. 
E U HAE 
eit e < 
De Ip 
Amphithrix hina (Mont.) Born. & Flah. * 
d var. torulosa (Grunow) | 
Born. & Pilah 2... D | 
« violacea (Kuetz.) Born. & Flah. . T + 
Anabaena torulosa (Carm.) Lagerh. +)/+]}+}4]4+ | + 
" 'weabHis Kuetz. . 2 t + 
Brachytrichia Quoyii (Ag.) Born. & F lah. rt 
cg aim aeruginea (Kuetz.) Thuret. + + | + 
confervicola (Dillw.) Ag. +/4+}+/4/4+/4+ 
«e crustacea Thuret. E Tl-l-cTl-cLicTi-c 
= fasciculata Ag. 4 + -+ 
« « forma incrustans Collins ls PE 
E ` fgsco-violacea Crouan. . . . 4) | "I NUN 
ti parasitica (Chauv.) Thuret. i Mae t-il 
*  pulvinata (Mert.) Ag. . e NE tTi-|—|-u 
ke scopulorum (Web. & Mohr) Ag o PERRET ETT + 
*  vivipara Harv. . . ee DET + | | 
Chroococcus turgidus Naeg. . . . lb ^C s Dus md 
Cryptoglaena Americana Davis. | u | 
Dermocarpa prasina (Reinsch) Born. & Thuret. + E +|+ 
ia violacea Crouan. (4. sie i | + 
Entophysalis granulosa Kuetz. oe es + + 
* Magnolia Farlow. . . . . . |+ | 4 
Gloeocapsa crepidinum Thuret. t +/+/4+/+ 
1 Printed in RHODORA as supplementary material, 
