440 TUFTS COLLEGE STUDIES, VOL. II, No. 3 



1888. Ueber die Siisswasseralgen-Gattungen Trochiscia 

 Kiitz., (Acanthococcus Lagerh., Glochiococcus de 

 Toni) und Tetraedron Kiitz. (Astericium Corda, Polye- 

 drium Nag., Cerasterias Reinsch). Hedwigia, Vol. 

 XXVII, p. 126. 



1889 ditto, Vol. XXVIII, p. 17. 



i888a. De Spirogyra insigni (Hass.) Kiitz. nov. var. 

 fallaci, Zygnemati chalybeospermo nov. sp. et Z. 

 rhynconemati nov. sp., adjecto conspectu subgenerum, 

 sectionum, subsectionumque generis Spirogyrae L/ink 

 et Zygnematis ( Ag.) De By. Hedwigia, Vol. XXVII, 



P- 2 53- 

 1890. Ueber neue Siisswasser und Meeresalgen. Sitzber. 



K. Bohm Ges., p. 10. 

 Hariot, P. 1889-90. Notes sur le genre Trentepohlia Martius. 



Jour, de Bot., Vol. III. and Vol. IV. 

 Harvey, F. L. 1892. The fresh water algae of Maine. III. 



Bull. Torr. Bot. Club, Vol. XIX, p. 118. 

 Harvey, W. H. 1846-51. Phycologia Britannica. London. 

 1852. Nereis Boreali-Americana, part i. Smithsonian 



Contrib. Knowledge, Vol. III. 

 1855. Some account of the marine botany of the colony of 



Western Australia. Trans. Royal Irish Acad., Vol. 



XXII, p. 525. 



1858. Nereis Boreali-Americana, part 3. Smithsonian 

 Contrib. Knowledge, Vol. X. 



1859. Phycologia Australica, Vol. II. London. 



i859a. Characters of new algae, chiefly from Japan and 

 the adjacent regions, collected by Charles Wright in 

 the North Pacific Exploring Expedition under Capt. 

 John Rogers. Proc. Amer. Acad., Vol. IV, p. 327. 



Hassall, A. H. 1842. Observations on the genera Zygnema, 

 Tyndaridea and Mougeotia. with descriptions of new 

 species. Ann. and Mag. of Nat. Hist., Vol. X, p. 34. 

 1843. Observations on the genus Mougeotia, on two new 

 genera of fresh water algae, and on Tyndaridea, with 

 descriptions of species. Ann. and Mag. of Nat. Hist., 

 Vol. XII, p. 180. 



