BOTANY. 325 



uiis Sargassnm, iu which he very much reduces the uumber of accepted 

 species of that genus. In the Journ. Linn. Soc. Dickie has some ^''otes 

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

 have to mention the Gontributions to the Alga-flora of Wilrtemberg, by 

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

 cheria, V. JJeBaryana, and a curious algoid i)arasite, Chromophyton Eos- 

 anoffii, found in shallow pools in Finland. 



In the Mittli. aus der Zoolo-. Station of Naplesis apaperby Berthold, 

 Zur Kcnntniss der 8iphonecn iind Bangiaceen, in whicli he describes the fer- 

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

 production in Dasycladiis claraformis. Schmitz describes the formation 

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

 views on the transformations which the genius Gloeocystis undergoes. 

 Borzi has discovered antherozoids in Hildcnbrandtia, which indicate its 

 aftinities witli the Squamariew. Ambronn notices some Gases^of Bilater- 

 ality in Florideae in the Bot. Zeitung. Grevillea contains an account by 

 M. C. Coolie of Desmids found in Great Britain since the publication of 

 , Ealfs's Desmidiacew. 



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

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

 ad liclienographiam europeam ; Lichenes nonnulli insulw St. Thomw, by 

 Nylander; the continuation of Arnold's papers on Tyrolese lichens and 

 Lichenological Gontributions hy ,1. Milller. A monograph »f the Scandina- 

 vian Arthonicc has been published by Almquist, and descriptions of spe- 

 cies from Australia and the Argentine Republic have been published by 

 Kremi)elhtiber. A paper was read by George Murray before the Linnean 

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

 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 paperby Dr. Frank Schwarz, called Ghemisch-botanische 

 Studien iiher die in den Flechten vorkommenden Flechtensaiiren, in whi(;h 

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

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

 tion, but 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 papers have 

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

 gus, Simblum rubeseens, 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 of FhaUoidei found in the United States. 

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

 to the U. 8. FhaUoidei, and Gorrelation bettveen the Odor of the PhaUoids 

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

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

 Gryptoporus on this species, and an article by J. B. Ellison a New Sphae- 



