ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 221 



paper he draws up three different tables of arrangement, each embodying 

 the results of his observations and discoveries. He divides the series of 

 the lichens broadly into two classes : those with a many-layered cortex, 

 and those with a narrow cortex of about two cells. In the many-layered 

 cortex he distinguishes an inner layer of living cells and an outer of 

 crushed and dead cells. In each species he has given details of the 

 structure, the presence or absence of isidia, soredia, trichomes, fat-cells, 

 and rhizoids, and he describes the developments of the ascogonia and 

 spermogonia. Calcium hypochlorite has been found useful in differen- 

 tiating species ; some tinge red when it is applied, others show no change 

 of colour": The red coloration is usually due to the presence of 

 lecanor-acid. The paper is illustrated by microscopic drawings and by 

 photographic reproductions of nearly all the species discussed. 



Hue, A. — Trois Lichens Nouveaux. (Three new lichens.) 



[Two species of Stereocaulon and one Solorina from the East 

 (Japan and Java).] 



Bull. Soc. Bot. France, liv. (1907) pp. 414-21 (2 figs.). 



,, Heppiearum ultima e familia Collemacearum tribubus nonnullas speoies 

 morphologice et anatomice elaboravit. (Morphological and ana- 

 tomical study of some species of Heppia, a " tribe " of Collemacese.) 

 [A description of the genus Heppia, with which the author unites 

 several other genera.] 



Mem. Sc. Nation. Sci. Nat. Math., xxxvi. (1907), 44 pp. 

 See also Ann. My col. v. (1907) pp. 460-1. 



Jatta, Antonio. — I Licheni dell' Erbario Tornabene. (The lichens of the 

 Tornabene herbarium.) 



[A list of 86 species or varieties collected in Sicily.] 



Nuovo Giorn. Bot. Ital. xiv. (1907) pp. 529-38. 



Lesdain, Bouly de. — Notes Lichenologiques. (Lichenological notes.) 



[A number of new varieties are diagnosed, and notes published on various 

 species.] Bull. Soc. Bot. France, liv. (1907) pp. 442-6. 



Nils on, Berger. — Die Flechten vegetation des Sarekgebirges. (Lichen flora 

 of the Sarek Mountains.) 



[288 species were determined, 5 of them new to science. The author 

 makes a new genus Parmularia for the section Placodiuni of the genus 

 Lecanora.~\ Nat.-Wiss. Unters-Sarekgebirg. in Schivedisch-Lappland 



iii. Botanik (1907) pp. 1-70. 

 See also Ann. Mycol., v. (1907) p. 461. 



Steiner, J. — Lichenes Austro-africani. (Lichens of Southern Africa.) 



[Lichens collected by H. A. Junod and Dultre. Several 

 new species are determined and diagnosed.] 



Bull. Herb. Boiss., ser. 2, vii. (1907), pp, 637-46. 

 See also Ann. Mijcol., v. (1907) p. 462. 



„ ,, Ueber Buellia saxorum und verwandte Flechtenarten. (On Buellia 



saxorum and allied lichen species.) 



Verh. k.k. Zool. Bot. Oes. Wien., lvii. (1907) pp. 340-71. 



Mycetozoa. 

 (By A. Lorrain Smith, F.L.S.) 



Influence of Bacteria on the Culture of Myxomycetes.*— Ernest 

 Pinoy concludes his paper on this subject. The action of bacteria on 



* Ann. Inst. Pasteur, xxi. (1907) pp. 686-700. 



