134 Cushman: New England species of Closterium 



Fig. 3. Closterium Archerianum Cleve, X 35°- 



a 



a 



<» 



» • 



i t 



a 



4. " Malmei Borge, X 2co - 



s- 



II 



" " apex, X 600. 



6. 



<< 



parvulnm Nag. X 35°- 



7- 



II 



X300. 



8. 



II 



incwvum Breb. X 3°°- 



9- " Ulna Focke, X 35°- 



" JO. u striolatum Ehrenb. X 35°. 



" II. M " erection Klebs, X 35o. 



11 12. " angustatum clavatum Hastings, X id o. 



11 13- " costatum Corda, X 2 5°- 



" 14- " " Wtj/« Cushman, X 300- 



'( ir << 



• • 



IS- " regula re Breb. X 2 S°- 



*6. M didymotocum Corda, X 35°« 



<< 



" 17- " macilentum Breb. X 35°* 



18. " juncidum Ralfs, X 35°- 



f< 19- " " *r«/iwj Roy, X 35o. 



Plate 4 



Fig. I. Closterium Novae-Angliae sp. nov. X I2 5- 



a 



tt 



2. <J decorum Breb. X 35o. 



3- " lineatum Ehrenb. X 250. 



<< ,1 u 



4- " Half sit immane var. nov. X 225. 



" r << 



< * 



5- " Pritchardianum Arch. X 3°° 



6. 



« * ~ < c 



acerosum elongation Breb. X I S°- 



< ( 



7- M • aciculateT. West, X 250. 



8. " littorale Gay, X 35 o. 



<« r» << 



9- " Leibleinii Kiitz. X 300 



" IO. " 



a II. " 



*< i <i <i 



moniliferum (Bory) Ehrenb. X 3°° 

 Ehrenbergii Menegh. X 250. 



12. " Diana e Ehrenb. X 300. 



<< ¥•* it 



l 3' u Kiitzingii Breb. X ^°°- 



*4- " rostra turn Ehrenb. X 3°°. 



11 15- " setaceum " X 300. 



l6 * " " zygospore, X 35°. 



" IT <t 



17- u Toxon West, X 35o. 



" 18. " £#**& (Miill.) Nitzsch, X 125. 



Plate 5. 



FlG. 1. Closterium Pseudodianae Roy, X 3CO. 



" 2. 



" *t n 



Venus Kiitz. X 4°o. 

 3- M Jenneri Ralfs, X 35°- 



" 4- « « « X450. 



a 



5- inter uiuicoia Lusnman, X 3°° 



6. " didymotocum Corda, X 200. 



<« *7 44 



it 



T* * lunula maximum Borge, X I2 5- 



8. u Ralfsii hybridum Rabenh. X I 5°- 



;; 9 - " - ** •* tip, x 450. 



" 10. «« 



" 11. 

 *i I2 . «< 



subulatum ( Kiitz. ) Breb. X 45°- 

 tfcz///iw ( Lyngb. ) Breb. X 4<*>- 

 littorale Gay, zygospore, X 4°o. 



