Eumycetes. 15 



of the first tribe contains thirteen genera with the doubtful genus 

 Glaziella. The description of each genus is followed by a Vey to the 

 species of that genus, and this key in turn followed by specific 

 descriptions, synonymy, exsiccati, illustrations, type locality, distri- 

 bution, etc. Twelv T e species are noted in the genus Hypocrea; the 

 new genus, Chromocrea contains the following new species: C.gela- 

 tinosa, C. substipitata, C. cevamica. Another new genus proposed is 

 Chromocreopsis with the following new species: C. cubispora, C. hir- 

 suta, C. bicoloi'. In addition to these new genera with their new 

 species the following are new species or new combinations in older 

 genera: Podostroma bvevipes, Stilbocrea hypocreoides, S. intermedia, 

 Byssonectria violacea, Peckiella camphorati, Hyphomyces apiculatns, 

 H. ciirhiellus , H. papyraceus, H. macrosporns, Hypocreopsis liche- 

 noides, H. trelellicola, H. consimilis, Typhodhim typhinum, Hypo- 

 crella Tamoneae. R. J. Pool. 



Seaver, F. J. and E. D. Clark. St u dies in Pvrophilous 

 Fungi. II. (Mycologia. IL p. 109-123. 1910.) 



This is in general a study of the changes brought about b\ T the 

 heating of soils and their relation to the growth of Pyronema and 

 other fungi. The history of the subject is briefly noted and then a 

 short account of the "toxin theory" is added. The authors have 

 apparently carried on a long list of experiments with soil extracts 

 and distillates as food for fungi. They have found in general that 

 Kasaroff's idea of the presence of toxic substances in the soil as 

 related to the growth of Pyronema is weak; that heating the soil 

 to high temperature brings about chemical changes so that the 

 amount of soluble material in the extract of heated soil is increased 

 from six to ten times that of the extract of the same soil unheated; 

 the materials rendered available hy heating the soil served as food 

 for Pyronema ; that distillation of the soil extract does not remove 

 the properties favorable to Pyronema; soil subjected to steam or 

 dry heat becomes a very favorable medium for the growth of va- 

 rious fungi by reason of the large amounts of food material rendered 

 available through the heating of the materials in the soil. Here are 

 some points that might prove interesting to the phytopathologist in 

 connection with methods of soil setrilization. R. J. Pool. 



Sumstine, D. R., The North American Mncorales. I. (Myco- 

 logia. II. p. 125-154. 1910.) 



Here is an attempt to stud3' systematically the North American 

 species of this interesting group. The characterization of the order 

 is followed by that of the family and then follows a key to the 

 genera of which the author makes fourteen. The following new 

 species or new combinations are noted: Mncor nodosus, Hydrophora 

 Fischeri, H. Taeniae, H. rufescens, Bulbolhamnidium pulchrum, B. 

 pulchrum variable var. nov., Calyptromyces; C. erectus, C. plumbeus, 

 C. globosus and C. circinelloides. Considerable valuable material in 

 the form of notes on synonymv, distribution, etc. is included. 



R. J. Pool. 



Wehmer, C. , Resistenz des Eichenholzes gegen Haus- 

 schwam {Merulius lacrymans). (Ber. deutsch, bot. Ges. XXIX. p. 

 704—708. 1911. erschienen 1912.) 



Der Verf. beschreibt einen Fall von Hausschwammschaden in 



