March 1907] Notes from Mycological Literature 76 



Fink, Bruce. 



This author gives "Further Notes on Cladonias" — namely, 

 Cladonia botrytes, Cladonia caespiticia, and Cladonia dehcata, 

 species of wide distribution. A page of half-tone illustrations 

 accompanies the article. 



Fungi Columbiani, Century XXII, 30 Jan. 1907. 



The Fungi Columbani (Ellis & Everhart's), Century XXII, 

 was issued Jan. 30, 1907. The genera most largely represented 

 are Aecidium, Peronospora, Puccinia, Uromyces, and Ustilago, 

 Mr. Flam Bartholomew is the author of these exsiccati. 



FauU, J. Horace. 



A preliminary note is given in Science, N. S. 23:152-3, 26 

 Jan. 1906, by J. Horace Faull, on "Ascus and Spore formation 

 in the Laboulbeniaceae." An effort is made to fill the gap of 

 the differences of opinion concerning the systematic position of 

 this group — which De Bary (1884) doubtfully referred to the 

 Ascomycetes; Thaxter (1895) referred them to Ascomycetes ; 

 Karsten (1895) said they were not Ascomycetes at all; Fngler 

 (1903) elevated them to the rank of a class quite removed from 

 both the Smuts and Ascomycetes. Recent investigations by J. 

 Horace Faull of microtome sections of well preserved perithecia 

 revealed features that are apparently of undoubted significance 

 in their bearing on the problem of the phylogenetic position of 

 this group; this is the basis for the statement: "Indeed, the 

 phenomena of sporogenesis agree in all essentials with those 

 already described for the Ascomycetes," by this author. 



Blakeslee, A. F. 



In Science of July 27, 1906, A. F. Blakeslee discusses 

 "Zygospores and sexual strains in the common bread Mould, 

 Rhizopus nigricans." He says : "Even since de Bary discovered 

 the zygospores of Rhizopus in 1865 — now forty years ago — 

 various and conflicting theories, based many of them upon the 

 character of the substratum upon which the zygospores were 

 accidentally found, have been brought forward to account tor 

 the rarity of their occurence. The writer has attempted to show 

 the insufficiency of the assumption that external conditions are 

 of more than secondary importance." He then takes up the 

 matter of the occurence in nature of the strains of this species. 



Mycological Notes. No. 23, C. G. Lloyd. 



The principal article in this No. pertains to "The Genus 

 Bovistella" defined as follows : "PeHdermium flaccid zvith or 

 without a sterile base, opening by a definite mouth. Capillitium 

 of short, separate threads or long, intertwined threads. Spores 



