Systematik 
129 
Der Pilz hat ein septiertes, verzweigtes Mycel, bildet auf festem 
Nährboden Lufthyphen mit runden bis ovalen Conidien; in Adhäsions- 
culturen reichliche Hefesprossung. 
Auf Bouillon-Peptonagar und auf Gipsblockculturen tritt schnell 
starke Endosporenbilclung auf. Die Asci sitzen an schnallenförmigen 
Copulationsästen oder an beliebigen Stellen des Mycels, sind schocolade- 
braun und 9—12 ju groß. Sie enthalten 2—4 hutförmige Endosporen, 
ähnlich denen von Endomyces fibuliger , die unter Sprengung des Exo- 
spors keimen. Das Temperaturoptimum für Conidienbildung liegt bei 
37°, für Ascosporenbildung bei 25°. Der Pilz vergärt eine große Reihe 
von Zuckerarten, unterscheidet sich speciell von dem ihm morphologisch 
sehr ähnlichen Endomyces fibuliger dadurch, daß er Maltose und Dextrin 
vergärt, die dieser nicht angreift. E. Schiemann (Berlin). 
MOREAU, F., Une nouvelle Mucorinée hétérogame, Zygorrhynchus 
Dangeardi sp. nov. (Bull. Soc. Bot. France 1912, 59, sess. extr., 
61 — 68; publié en 1913). 
Le Z. Dangeardi est le Z. sp. étudié par l’auteur dans le «Bull. 
Soc. Mycol. France» 1911, 27, 334—341. Il est voisin des Z. Moelleri 
et Z. Vuilleminii , auxquels il ressemble par ses caracterès extérieurs, 
mais il en diffère par le petit nombre de noyaux (4) fonctionnant comme 
gamètes dans chaque gamétocyste. R. Maire (Alger). 
THAXTER, R., New or critical Laboulb eniales from the Argen¬ 
tine (Proc. Americ. Acad. Arts and Scienc. 1912, 48, Nr. 7, 155—223). 
“The rapid accumulation during the past six years of Laboulb eniales, 
which have come to me from various parts of the world and now include 
some hundreds of new species and genera, has forced me to abandon my 
intention to figure all new forms as they were published; and it has 
again become necessary to resort to preliminary diagnoses, a third series 
of which is entered on in the present paper. It is, however, my purpose 
to illustrate all the species described in this series as soon as the neces¬ 
sary figures can be prepared and published.“ The exotic material now 
available is in far better condition than that which has formerly been 
obtained from dried specimens of insects, for the reason that a majority 
of the hosts have been collected directly into alcohol and the parasites 
removed before drying. 
“The examination of large series of forms in good condition has 
inevitably led to some modification of my views in regard to the limi¬ 
tations of certain genera and species, and while it has in some instances 
made clearer relationships or differences that were formerly in doubt, it 
has at the same time served to break down distinctions which were 
formerly regarded as more or less crucial, so that it has seemed best to 
modify the treatment of certain genera and species. Thus in the present 
paper, the limits of Corethro?nyces, for example, are considerably extended 
to include several genera hitherto kept distinct.“ The materials con¬ 
sidered in this paper were collected in Argentina, chiefly in the Buenos 
Aires region. 
All the specimens which were determinable are listed. Of these 
49 species were previously known and 68 species are new to science. 
Nine new genera are formed: Mimeomyces (with 1 species), Tetrandro- 
Mycologisches Centralblatt, Bd. III. 9 
