620 Palaeontologie. — Algae. — Eumj^cetes. 



Schi m per and Mougeot, in the Bunter of Nottingham, 

 (Proc. Cambridge Phil. Soc. XV. 5. p. 40]— 405.) 



The author records some fossils from the Bunter of England 

 which Claim attention from the fact that they appear to be the first 

 described plants from the horizon in this country. The plants are 

 incompletely known, but the species is evidently one of the Eqid- 

 setaceae, and is speciall}^ identified with Schisoneura paradoxa, which 

 is a synonym for Equisetites avenareiis. Impressions, casts, and nodal 

 diaphragms are described. As no internal structure and no fructi- 

 fications are known, the authors concluding generalisations are very 

 far from being established. M. C. Stopes. 



Wills, L. T., Notes on the genus SchiBoneiira, Schimper & 

 Mougeot. (Proc. Cambridge Phil. Soc. XV. 5. p. 406—410. 1910.) 



Basing his work on numerous specimens of the genus discovered 

 b}^ him in the English Lower Keuper of Worcesterhire, the 

 author gives a critical account of Schisoneura. Details of the several 

 species are tabulated and the author concludes that they should be 

 divided into two groups: viz. Neocalamites including ScJiisoneura 

 carrerei, S. hoerensis, S. rneriani, and Schisoneura in sensu stricto 

 including 5. gonduanensis , S. africafia, and vS. paradoxa. 



M. C. Stopes. 



Gepp, A. and E. S., Marine algae from the Kermadecs. 

 (Journ. Bot. IL. p. 17—23. January 1911.) 



The marine algae enumerated in this paper were collccted by 

 R. B. Oliver of Christchurch, New Zealand, during his Vi- 

 sit to the Kermadec Islands in 1908. In a short introduction. an 

 account is given of the Islands, with remarks on the ocean currents 

 which flow past them. Thirty-seven species of marine algae are re- 

 corded in the collection, none of which are new, though the speci- 

 men referred to as ,,Galaxaura sp." may eventually prove to be so. 

 Carpophyllmn angustifolium J. Ag. is shown to be identical with 

 Cystophora clongata Dickie and the species must now be known as 

 CarpopJiyUum elongatum. This list constitutes the first published re- 

 cords of algae from the Kermadec Islands. E. S. Gepp. 



Thoday, M. G., Note on an Artifact in the Walls of the 

 Medulla in the Laminariaceae. (New Phy toi. X. p. 68. 2 figs. 1911.) 



This note deals with reiiculate thickenings on the longitudinal 

 walls of the meduUary Clements in Laminaria digitata, etc. They 

 are shewn to be of the nature of wrinklings consequent on partial 

 dehydration and to have no corespondence with any actual sculptu- 

 rings of the wall. F. W. Oliver. 



Krieg, W., Neue Infectionsversuche mit Uromyces Dactylidis. 

 (Centralbl. Bact. 2. Abt. XXV. p. 430-436. 1909.) 



Nach den Versuchen des Verf. kann die morphologische Art 

 Uromyces Dactylidis z. B. mit Sicherheit in folgende biologische 

 Arten zerlegt werden: 



U. Dactylidis f. sp. mit der Aecidiumgeneration auf Ranunculus 

 bulbosus und R. repens. U. Dactylidis f. sp. mit Aecidium auf fol- 



