14 
Journal of Agricultural Research 
Vol. VII, No. i 
Die Fadenpilze Aspergillus flavus, niger u. fumigatus; Eurotium repens (u. 
Aspergillus glaucus) und ihre Beziehungen zu Otomycosis Aspergillina. p. 82, 
Wiesbaden, 1883. Inaug. Diss.), and is judged undeterminable from the informa- 
given, by Wehmer (Wehmer, Carl. Zur Kenntnis einiger Aspergillus-Arten. 
In Centbl. Bakt. [etc.], Abt. 2, Bd. 18, No. 13/15, p. 394-395. 3 fig. 1907). 
Robin's figures represent A. fumigatus much more closely than A . niger. 
A . nigricans Wreden (Wreden, Robert. Recherches sur deux nouvelles esp&ces de 
v£g6taux parasites (Aspergillus flavescens et Aspergillus nigricans) de l’homme. 
In Compt. Rend. Acad. Sci. [Paris], t. 65, no. 9, p. 368. 1867). 
This is regarded as A. niger by Wilhelm (Wilhelm, K. A. Beitrage zur Kennt- 
niss der Pilzgattung Aspergillus. 70 p. Strassburg-Berlin, 1877. Inaug. Diss.) 
by Siebenmann (Siebenmann, Friedrich. Die Fadenpilze Aspergillus flavus, 
niger u. fumigatus; Eurotium repens (u. Aspergillus glaucus) und ihre Bezie¬ 
hungen zu Otomycosis Aspergillina. p. 82. Wiesbaden, 1883. Inaug. Diss.); 
and by Wehmer (Wehmer, Carl. Zur Kenntnis einiger Aspergillus-Arten, In 
Centbl. Bakt. [etc.], Abt. 2, Bd. 18, No. 13/15, p. 394-395. 1907). 
A. nigricans Cooke (Cooke, M. C. Some remarkable moulds. In Jour. Quekett 
Micros. Club, s. 2, v. 2, no. 12, p. 140, pi. 9, fig. 3. 1885. Saccardo, P. A. Sylloge 
Fungorum . . . t. 4, p. 76. Patavii, 1886). 
The occurrence in the human ear of forms known to be identical with A. niger 
makes a separate name unnecessary. The description of this organism corre- 
r nds with A. nanus Montagne, except that the spores are given as 5 m in 
meter. 
A. phaeocephalus Durieu and Montagne (Saccardo, P. A. Fungi Italic! ... fig. 903. 
Patavii, 1881. Saccardo, P. A. Sylloge Fungorum , . . v. 4, p. 76. Patavii, 
1886). 
No differences are given to warrant a separation of this form from A. niger. 
S. phoenicis (Corda) Patouill. and Delacr. (Patouillard, Narcisse, and Delacroix, 
Georges. Sur une maladie des dattes produite par le Sterigmatocystis Phoenicis 
(Corda) Patouill. et Delacr. In Bui. Soc. Mycol. France, t. 7, p. 119, pi. 9. 
1891.)= Ustilago phoenicis Corda (Corda, A. C. I. leones Fungorum . . . t. 4, 
p. 9, pi. 3, fig. 26. 1840). 
In describing the black Aspergillus as found upon dates, the authors com¬ 
pared this material to specimens in the museum labeled (t Ustilago phoenicis ” 
and attributed to Corda, thus establishing the identity of the organism of Corda, 
which was not recognizable from any previous references. A. ustilago Beck is 
described with the same measurements. The measurements of sterigmata place 
this form in the section of the group with primary sterigmata 50-60M in length. 
5 . pseudo-nigra Costantin and Eucet (Costantin, and Eucet. Sur le Sterigmatocystis 
pseudonigra. In Bui. Soc. Mycol. France, t. 19, fasc. 1, p. 33-44. 1903). 
This is regarded as A. niger by Wehmer (Wehmer, Carl. Zur Kenntnis einiger 
Aspergillus-Arten. In Centbl. Bakt. [etc.], Abt. 2, Bd. 18, No. 13/15, p. 394- 
395. 1907). 
The distinctions proposed by the authors are based upon pathogenicity and 
cultural reactions, not upon definite morphological characters. 
S. pulverulenta McAlp. (McAlpine, Daniel. Australian fungi. In Agr. Gaz. N. S. 
Wales, v. 7, pt. 5, p. 302. 1896). 
This is regarded as A. niger by Wehmer (Wehmer, Carl. Zur Kenntnis eini¬ 
ger Aspergillus-Arten. In Centbl. Bakt. [etc.], Abt. 2, Bd. 18, No. 13/15, 
p. 394-395• 1907) after examining material received from McAlpine. 
5 . purpurea Van Tieg. (Van Tieghem, P. E. E. Sur le d6veloppement de quelques 
Ascomyc£tes. . In Bui. Soc. Bot. France, t. 24, p. 101-103. 1877). 
The information given is regarded as insufficient by Wehmer to separate this 
form (Wehmer, Carl. Die Pilzgattung Aspergillus in morphologischer und 
systematischer Beziehung unter besonderer Beriicksichtigung der mitteleuro- 
paeischen Species. V. Systematik C. Schwarzbraune Arten. In M6m. Soc. 
Phys. et Hist. Nat. Geneve, t. 33, pt. 2, no. 4, p. 103-111. 1901). 
