1900] 
Polycystis pallida (Kuetz.) Farlow. 
Rivularia atra Roth. "MEC M 
*  Biasolettiana Menegh. 
ké Bornetiana Setchell. 
Hu nitida Ag. 7 
Spirulina Meneghiniana Zan. 
“ Nordstedtii Gomont. . 
“ subsalsa Oersted. 
“ versicolor Cohn. 
Symploca hydnoides Kuetz. . 
Xenococcus Schousboei Thuret. 
CHLOROPHYCEAE. 
Acroblaste Reinschii Wille. . 
Bolbocoleon piliferum Prings. 
Bryopsis plumosa (Huds.) Ag. . . . 
Chatipinorpna aerea (Dillw.) Kuetz. 
[11 
Linum (Fl. Dan.) Kuerz, 
Melagonium (Web. A Mohr) 
Kuetz. forma typica Kjellm. 
Melagonium forma rupincola 
Aresch. 
Chlorochytrium Schmitzii Rosenvinge. 
Gare: og albida (Huds.) Kuetz. 
S var. refracta Thuret. 
arcta (Dillw.) kuer, .. 
* var. centralis Farlow. 
expansa (Mert.) Kuetz. 
flexuosa (Griff.) Harv. 
fracta (Fl. Dan.) Kuetz. . 
glaucescens (Griff.) Harv. 
gracilis (Griff. kuerz, . 
e var. expansa Farlow. 
" * tenuis Farlow. . 
hirta Kuetz. 
Hutchinsiae kuerz, . 
e var. diffusa (Harv.) 
Farlow. 
laetevirens Kuetz. . 
lanosa (Roth) Kuetz. 
* — var. uncialis (Harv.) Thuret. 
Magdalenae Harv. 
refracta Aresch. 
Collins, — Lists of New England plants, — V. 
43 
+++ Me. 
++ 
++ 
+ +4+4+4+ t¢4+4+4+4+4+4+4++4 
++, 
+++++ ++ + + 
++ 
++ 
-+ 
+ ++4+++4+ 
+++4 1 
++++ 
+++ 
E 
++ 
+ + + S. Mass. 
+++ + 
d 
+++++ +++ 
+14 
+ 
+ 
TCI 
Conn. 
+++ 
++ 
++ 
