CONTENTS. XXIX 



PAGE 



Bornet, E., & C. Flahault — New Genera of Perforating Alym .. .. Part 5 776 



Wildeman, E. DE — Ulothrix and Stichococcus „ 777 



„ „ Trentepohlia n 777 



Toni, G. B. DE — Diatoms from a Trygon u 777 



Battray, J. — Revision of the Genus Auliscus, Ehrb., and of some allied 



Genera {Plates XIT-XYI) t Part 6 861 



Eeixsch, P. F. — New Genera of Floridex „ 1002 



Elebahn, H. — Zygospores of Conjugates ,, 1002 



Murray, G., & L. A. Boodle — Spongocladia M 1002 



Hansgirg, A. — Aerophytic Species of Ulotrichaceee „ 1002 



Istya'nffi, G. — Structure of Ulothrix „ 1003 



Wildeman, E. DE — Bulbotrichia n 1003 



Toni, J. B. DE — Hansgirgia, a new genus of aerial Algse ,, 1003 



Dangeard, P. A. — Clilorogonium n 1003 



„ ,, Chlamydomonas 1004 



„ „ Chlamydococcus pluvialis 1004 



Hai'ptfleisch, P. — Cell membrane and Gelatinous Envelope of Desmidicx . . „ 1004 



Smith, T. F. — Structure of Pleurosigma formosum 1063 



liicheri.es. 



Forssell, K. B. J. — Glccolichenes Parti 95 



Massee, G. — Gasterolichenes ,, 95 



Muller, J. — Action of Lichens on Pocks „ 95 



Hegetschweiler & Stizenberger — Lichens on unusual substrata .... „ 96 



Moller, A. — Culture of Lichen-forming Ascomycetes without Algsz . . . . Part 3 466 



Waixio, E.— Cladonia ..' Part 4 621 



Sydow's (D.) Lichens of Germany „ 621 



Fungi. 



Errera, L. — Accumulation and Consumption of Glycogen by Fungi .. .. Parti 96 



Wettstein, E. y. — Function of Cystids „ 96 



Seyxes,J.de — Rhizomorpha subcorticalis of Armillaria mellea „ 97 



Dietel, P. — Uredinese, ,, 97 



Peillieex, E. — Grape-disease — Comothyrium diplodiella n 98 



Gaspeeixi, G. — New Disease of Lemons „ 98 



Wahrlich, W. — New Pythium „ 98 



Zopf, W. — Chytridiacea parasitic on Diatoms , 99 



Schroeter, J., Cohn's' Cryptogamic Flora of Silesia' „ 99 



Massee — On the Type of a New Order of Fungi (PI. IV .) Part 2 173 



Frank, B. — New Forms of Mycorhiza M 268 



Wettstein, E. VON — Abnormal Fructification of Agaricus procerus . . . . „ 269 



Morini, F. — Sexuality of Ustilaginex n 269 



„ „ Germination of the Spores in Ustilago „ 270 



Bocdeer, E. — Tremella fimetaria )( 270 



Tieghem, P. Van — New Genera of Ascomycetes, Oleina, and Podocapsa .. „ 271 



Zykal, H. — Asci of Penicillium crustaceum n 271 



Eothert, W. — Formation of Sporangia and Spores in the Saprolegnicx .. „ 271 



Schnetzler, J. B. — Infection of a Frog-tadpole by Saprolegnia ferax . . „ 272 



Eeess, M., & C. Fisch — Elaphomyces fJ 273 



Brunchorst, J. — Cabbage-Hernia ( 273 



„ „ Potato Fungus ( 274 



Eobinson, B. L. — Taphrina f 274 



Veillemin, P. — Disease affecting Cherry and Plum-trees 274 



Harz, C. O. — Oidium Fragariss 274 



