ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 87 



study of various genera of this family. The author traces affinity be- 

 tween the genera in the form of the perithecium and only secondarily 

 in the septation of the spores. Illustrations are given of twenty-two 

 species. A. L. S. 



Mycological Contributions. — T. Theiszen (Ami. Mycol, 1918, 16, 

 175-88, 4 figs.). Notes are given on genera of Pyrenomycetes such 

 as Lasiohotrys and Vestergrenia. The author has also examined material 

 from S. America and from Asia, and pubhshes a number of new species, 

 with extended descriptive accounts of some that are not new. A. L. S. 



Laboulbeniales. — Roland Thaxter (Proc. Amer. Acad. Arts mid 

 Sci., 1915, 51, 1-51 ; 1915, 52, 1-54 and 649-721 ; 1918, 53, 697, 

 749; 1918, 54, 207-32). In this series of papers Thaxter describes 

 many new species from widely separated localities situated in or near 

 the tropics. In the first list, comprising Indo-Malayan species, one_ of 

 the gatherings provided evidence that the genus Ceraiomyces should" be 

 merged in Lahoidhenia. Java and Ceylon furnished most of the 

 material. In the second paper species of Chitonomyces and RicTcia are 

 described. They were collected in the Cameroons, Philippines, W. Indies 

 and Central America. A paper is devoted to American species — not 

 the United States — and includes as new genera Nycteromyces and 

 Ilytheomyces. A record of extra-American species includes mostly 

 African or Malayan species, while the final paper takes account only of 

 species from Chili and New Zealand. The two countries are associated 

 because the flora of Southern Chili and New Zealand are similar in 

 many respects. A. L. S. 



Synoptic Tables.— F. Theiszen and H. Sydow [Ann. BIijcol., 1917, 

 15, 389-491, 38 figs.). The authors point out that in the twenty 

 years since the publication of the "Natur. Pflanzenfamilien " there 

 have been many changes in the systematic arrangement of various 

 groups of fungi. They deal here with Pyrenomycetes, and have given 

 synoptic tables of the orders Hemisphaeriales, Myriangiales and Peri- 

 sporiales. Tables are given of the families into which these are divided, 

 then the genera of each family and a diagnosis of each genus with the 

 type species and synonymy. A number of new genera have been formed 

 or new names substituted in the course of the work. An index of the 

 genera is given. A. L. S. 



Sketch of Pseudosphseriales.— F. Theiszen and H. Sydow {Ann. 

 Mycol., 1918, 16, 1-34,5 figs.). In the Pseudosphaeriace^ the locuK 

 of a stroma enclose only one ascus. There are several genera in the 

 family. A full account is given by the authors of this and other 

 families. They also give a special synoptic list of Pyrenomycetes 

 parasitic on the lichen thallus. A. L. S. 



Dothideales : a Critical Systematic Original Research.— F. Theiszen 

 and H. Sydow {Ann. Mycol, 1915, 13, 149-746, 6 pis.). The authors 

 give an historical sketch of the treatment of this group of Pyrenornycetes. 

 Von Hohnel had published an account of these fungi, but his work 



