CONTENTS. XXV 



Massalongo, C. — Calypogeia in Italy .. .. 615 



Arnell, H. W. & C. Jensen — Cephalozia in Scandinavia 615 



Humphrey, H. B. — Notes on Calif or nian Hepatics 615 



Stephani, F. — Antarctic Hepatic* 615 



Lacouture — Illustrated Key to the Genu* Lejeunea 615 



Schiffner, V. — Morphology and Anatomy of Bucegia romanica 615 



„ ,, Notes on Riccardia and other Hepatics 616 



Trabit, R. — Riella bialata 616 



Roth. G., & J. Roll — Sphagnum and Sphagnology 729 



Schiffner, V. — Grimaldia and Neesiella 730 



Leeuwen-Reijnvaan, W. & J. van — Spermatogenesis in Mosses and Liverworts . . 730 



Rydberg, P. A. — Arctic Mosses 731 



Collins, F. J., & others — North American Mosses 731 



Moss Exchange Club — British Mosses 732 



Meylan, C — Muscinem of the Jura Range 732 



Bottini, A . — Italian Mosses 732 



Cardot, J. — New Mosses of Japan and Corea 732 



Paris, E. G. — Muscinem of French China 732 



Cardot, J. — Bryological Notes 732 



Brotherus, V. F. — Subfamilies of Hypnacex 733 



Meylan, C. — European Species of Oncophorus 733 



Dismier, G. — Pohli 'a annotina and Allied Species 733 



Sebille, R. — Grimmia andrxoides 733 



Lorenz, A. — Jungermannia in Neio England 734 



Stephani, F. — New Descriptions of Hepaticx * 734 



Evans, A. W. — New West Indian' Lejeunex = 731 



Campbell, D. H. — Tlialloid Hepaticse of Java 734 



Dcrand, E. J. — Development of Sexual Organs and Sporogonium of Marchantia .. 735 



Thallophyta. 



Algae. 



Prowazek, S. — Regeneration of Algx 72 



Freund, H. — Influence of External Conditions on the Asexual Reproduction of Algx 72 



Walker, N. — Algal Vegetation of Ponds 73 



Collins, F. S. — New Green Algse 73 



Trondle, A. — Copulation and Germination of Spirogyra 73 



Sauvageau, C. — Sargassum bacciferum 74 



„ „ Sexuality of Halopteris scoparia 74 



„ „ Aglaozonia melanoidea 75 



Reinbold, T. — Algx of the ' Valdivia ' Expedition 75 



Bibliography 76 



Nelson, E. M. — Biddulphia mobiliensis 158 



Brand, F. — Staining of Algx 201 



Lewis, I. F. — Coleochxte nitellarum 202 



Lemmermann, E. — Algx of Mark Brandenburg 202 



Quelle, F. — Contributions to the Algal Ilora of Nordhausen 203 



Bessil, J. — French Algx collected in the English Channel 203 



Batters, E. A. L., the late — Marine Algx of Lambay 203 



Borgesen,T\ — Caulerpas of the Danish West Indies 203 



Lemmermann, E. — Plankton of the Yang-tze-kiang .. .. 204 



„ „ Pliytoplankton of Ceylon 204 



Pascher, A. — Swarm-spores of Fresh-ivater Algx 204 



Woycicki, Z. — Pathological Groicth Phenomenon in Spirogyra and Mougeotia .. 205 



Bergon, P. — Processes of Division, Cell-rejuvenation and Sporulation in Biddtdphia 205 



Pavillard, J. — Species of Ceratiu m in the Gulf of Lyons 205 



Howe, M. A. — Avrainvillea and Halimeda 205 



West. G. S. — Some Critical Green Algx 206 



Mann, A. — Diatoms of the Pacific 207 



Deichmann, H., & L. K. Kosenvinge — Distribution of Fucacex on the Coast of 



Greenland 207 



Heydrich, F. — Sphxranthera lichetioides 208 



