ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
93 
Studies of the Lichen Flora of Norway. — Bernt Lynge (Videns- 
kaps. Skrifter., 1921, 1 , Mab. Naturv. Klasse, N. 7, 252 pp., 13 maps, 
5 figs.). In a preface to this work Lynge gives a short statement of 
Norwegian Lichenologists and of the districts in which they collected ; 
he also gives an account of the economic use of lichens in Norway, of 
their distribution, and of the species characteristic of certain localities. 
In the special part are listed the lichens of the country ; in each case is 
noted the districts where the flora was found as well as the collector. 
Biological notes and diagnoses are frequently added ; this section of the 
work takes us from Tholurna and Sphserophorus to Xanthoria, twenty- 
five genera having been dealt with. A final chapter gives an account 
of Lapponian lichen names. A. L. S. 
Mycetozoa. 
Arcyria virescens sp. n. — A. Lister ( Journ . Bot., 1921, 59, 
252-3). The new species was found by I. H. Burkill on a block of 
wood in the orchid pits of the Botanical Gardens, Singapore. It has 
also been collected at Naboda, Ceylon, and in the southern part of the 
Malay Peninsula. The species has also been found in the Kew 
Herbarium, collected in North Queensland over forty years ago. The 
new mycetozoon is well characterized by the capilitium and by the 
persistently green spores. Arcyria glauca also has green spores, but 
the two species are quite distinct. A. L. S. 
