BOTANY. 325 



nus Sargass7im, in which he very much reduces the number of accepted 

 species of that genus. In the Journ. Linn. Soc. Dickie h as some JSfotes 

 on Algw from the Amazon and its tributaries. For Central Europe we 

 have to mention the Contributions to the AJija-flora, of Wilrtemberg, by 

 Kirchuer. Woronin, in the Botanische Zeitung, describes a new Vau- 

 cheria, V. De Baryana., and a curious algoid ])arasite, Chroniophyton Bos- 

 anoffii, found in sliallow pools in Fiidand. 



In the Mitth. aus der Zoolog. Station of Naples is a paper by Berthold, 

 Zur Kenntniss der Siphoneeu und BangiaeeeUj in which he describes the fer- 

 tilization in Bangia, and the same writer also describes the Sexual Be- 

 yroductloii in Dasgcladus clarcvformis. Schmitz describes the formation 

 of sporangia in the genus Ralimeda. In Hedwigia P. Kichter gives his 

 views on the transformations which the genius Gloeocystis undergoes. 

 IJorzi has discovered antherozoids in Uildenbrandtia^ which indicate its 

 aflinities with the Squamariew. Ambroun notices some Gases of Bilater- 

 ality in Florideae in the Bot. Zeitung. Gre\illea contains an account by 

 ]\I. (J. Cooke of Desmids iound in Great Britain since the publication of 

 Ralfs's Desmidiacew. 



Lichens. — But very little has appeared in this department. Several 

 short articles were published in Flora, among which were Addenda nova 

 ad Uchcnographiam enropeam ; Lichenes nonnnlU instilw St. Thomw, by 

 Ny lander 5 the continuation of Arnold's i)apers on Tyrolese lichens and 

 Lichenological Contributions hy J. Miiller. A monograph of the Scandina- 

 vian Arthoni(c has been published by Almquist, and descriptions of spe- 

 cies from Australia and the Argentine Republic have been published by 

 Krem])elhuber. Ai)aper was read by George Murray before the Linnean 

 Society, in which he suggested that in the gonida of lichens we have 

 what might be called a chlorophyl-screen by means of which the liyphae 

 are able to decompose carbonic acid. In Cohn's Beitrage zur Biologie 

 is an interesting paper by Dr. Frank Scliwarz, called Chemisch-botanische 

 Studicn iiber die in den Flechten vorlommcnden Flechtensailren, in which 

 he not only discusses the different acids, as chrysophanic, lecanoric, 

 erythrinic and evernic acids, in relation to their chemical composi- 

 tion, l>ut also from an histological study of the thalli of different lich- 

 ens has attempted to ascertain exactly where the acids are found in the 

 thallus. 



Fungi. — On fungi relating to the United States several ijapers have 

 been published. In the Bull. Torrey club is a description of a new fun- 

 gus, Simblinn ruhescens., by W. R. Gerard, with two plates. This curious 

 fungus belongs to the FhaUoidei, and at the end of the paper mentioned 

 Gerard gives a list of the species oi FhaUoidei found in the United States. 

 The same writer has also two 'Other papers in the Bulletin on Additions 

 to the U. S. FhaUoidei, and Correlation between the Odor of the Fhalloids 

 and their Belative Frequency. In the same journal is a paper by Peck on 

 Polyporus volvatus and its varieties, in which he founds a new genus 

 Cryptoporus on this species, and an article by J. B. Ellis on a New Sphae- 



