Bibliotheca Phycologica. cxxxui 



WiTTROCK. V. B. — Oin Gotlends octi Oelands Sotvattonstilger. (Biliang till Kongl. 

 Vet. Akad. Handl. Band I, n. 1). Stockliolm 1872. 



— Om Suons ocli Isens Flora sarskildt i ArktiskaTrakterna, ni. 5 col. Kpfrt. Stock- 



iiolm 1883. 



— On tlic Developpement and Systematic Arrangemeut of tlie PithophoraceBe, w. 



'i plates. Upsala 1877. 



— On the Spore-formationof the Mesocarpese esp. of Gonatonema, w. plat. (Bihang 



till K. Svenska Vet. Akad. Ilandl. Stockholm 1878). 



— Beitrag zur Kenntniss der Zygnemaceen und JMesocarpaccen. Upsala 1869. (Gfr. 



Hedw. 1871, p. 88). 



— (Edogoniaceae uovae in Suecia lectse. (Bot. Notiser n. 1 Fcbr. 1872, Gfr, Hedw. 



1871, p. 87). 



— (Edogoniacese americaufe (Ibidem 1875). 



WiTTROCR V. B. et NoRDSTEDT 0. — Staurogcuia heteracantha. (Botaniska Notiser 



1882, p. 56-57 m. Abbild.). 

 WoLLE F. — Fallacious Appearances in Freshwater Algtie. (Amcr. M. Micr. Journal 



I, 1880, p. 21-22). 



— Notes on Freshwater Algje (Cylindrocapsa). (Tbidem p. 83-84). 



— New American Desmids. (BuU. Torrey Bot. Glut) vol. VII, 1880, p. 91). 



— Cell raultiplication in Chantransia violacea. (Amer. M. Micr. Journ. I, 1880, u. 3). 



— Dubious character of Fresh-watcr Algse, w pl. New York 1879. 



— Kansas Algee. (Bull. of Washburn. Laboratory l884, n. 1, B. T. B. G. XII, u. 12, 



p. 125-129, plate LI). 



— Desmids of the United States and List of American Pediastrums, with 53 co- 



loured plates. Bethlehem Pa. 1884. 



— Fresh Water AlgiB. (Bull. Torrey Bot. Club New York 1885, XII, n. 1, p. 1).* 



— Third Contribution to the Knowledge of the Kansas Algaa. (Bull. Washb. La- 



boratory I, p. 174-175). 



— Turner 's New Desmids of the United States. (Bull. Torrey bot Club Xlll, 



1886, n. 4, p. 56-60). 



— Desmids of the Pacific Coast. (BuU. Calif. Acad. Scienc. II, p. 432-437). 



— Freshwater Algse of the United States, with col. plates, 2 vol. Bethlehem 1887. 

 WoLLN-y R. — Mittheilungen iiber einige Algenformen. (Hedwigia 1886, Heft 1, p. 1-5, 



Taf. I), 



— Algologische Mittheilungen, mit 2 Tafeln. (Hedwigia 188'3, Heft 4, p. 125-132;. 



— Ueber die Fruchtbildung von Chfetopteris plurnosa, mit 3 Taf, (Hedwigia 1880, 



p. 65-75J. 



— Die Meeresalgeu von Helgolaud. (Hedwigia). Dresden 1880. 



— Ueber die Gallen von Vaucheria. (Hodwigia 1877, p. 163). 



— Ueber zwei neue Spirogyren. (Hedwigia 1877, p. 105). 



— Eiuige neue Meeresalgen, mit 1 Taf. (Hedwigia 1878, p. 17). 



— Weitere Beobachtungen iiber die Entwickelung der Notommata in einer Aus- 



sackung der Vaucheria. (Hedwigia 1878, p, 5). 

 WoLTKE G. — Zur Entwickelungsgeschichte der Urospora mirabilis Aresch. (Denk- 

 wurdigkeiten der Ncurussischen Ges. der Naturforscher Bd. XII, Heft I, 

 p. 49-102, m. 2 Taf.) Odessa 1887. 



