BOTANY. • 559 



bodies, which contain nuclei, to which he gives the name of i)yrenoids, 

 are always deriv^ed from some previously existing chromatophor and 

 are not formed from the protoplasm proper. The Nuovo Giornale Bot. 

 Hal. contains an important continuation of Borzi's " Morphology and 

 Biology of the Fhycochromacea'" in which many new facts of the growth 

 and reproduction of that group are brought forward. The paper of Zopf 

 on Spaltpjfanzen, previously mentioned under the head of "Bacteria," 

 also contains an account of the development of certain Phyeochromacece, 

 in which he finds that the filamentous species have also a glceeocapsoid 

 condition. Pringsheim's Jahrhuch contains a lengthy article by Ber- 

 thold, Beitrdge znr MorpJiologie und Physiologie der Meeresalgen, relating 

 principally to the development of the frond. Eostafinski, in a paper on 

 Hydrurus und seine Verwandschaft, gives an account of the development 

 of that genus and a detailed synonymy of the species H. penicillatus. 



Eelatiug to the marine species of the United States, we would men- 

 tion a description of a new genus, Phceosaccion, and some new species 

 by Farlow; "Notes on New England Algoe," by F. S. Collins; and " Note 

 on Arthrocladia villosa" by A. B. Herveyj all in the Bulletin of the Tor- 

 rey Club. " Fresh Water Algse of the United States" have also been 

 described in the Bulletin by Wolle. 



The paper by Agardh, Til Algernes Systematik, is an illustrated account 

 of a number of new species and genera, most of which belong to the 

 Ghordariacece and Dictyotacew. The eighth monograph of the Flora and 

 Fauna of tJie bay of Naples is by Berthold, and includes the Bangiacew, 

 in which he gives an account of the reproduction by antheridia, and 

 procarps resembling those already known in other Floridew, although of 

 a more simple type. Of the second i)art of Rahenliorsfs Kryptogamen- 

 Flora, including the marine algae by Hauck, the earlier numbers ap- 

 I)eared at the end of the year, and include the lower orders of Floridew. 

 Hauck has also described a curious new genus, MarcMsettia. A species 

 of alga, Cladophora ophiophila, growing on a reptile, Herpetion, from 

 Bangkok, has been described by Magnus. New Arctic marine algfB have 

 been described by M. Foslie, and algse from Patagonia and the Argentine 

 Republic have been described by Nordstedt in Bot. Notiser. In the Bo- 

 tanische Zeitung are articles by Fr. Schhiitz and Just on Phyllosiphon 

 arisari, a singular parasite on the lenves of Arisarum in Italy, whose place 

 among algie is donbtful, and Schmitz is inclined to place it in fungi. 

 A new work by M.. C. Cooke, on British Fresh- Water Alga, has ap- 

 peared, the three parts already issued this year including the Palmel- 

 lacece, Protococcacew Volvocinea?, and Zygnemacece. The Pediastra and 

 Palmellacece of the region of Stockholm have been described in a paper 

 by Lagerheim. "The Development and Systematic Position of Vam- 

 pyrella" is the subject of an illustrated paper by Klein, in the Bot. Gen- 

 tralblatt. Parts 9 and 10 of Wiltrock and Nordstedt's Algea Scandi- 

 navicw appeared during this year, together with an index to the ten parts 

 already published. 



