CLASSIFICATION, GENERIC DIAGNOSIS, AND SYNONYMY 7 



1926 has been emended and introduced here. This is followed by brief 

 considerations of the other more significant synonyms. 



Aspergillus Micheli, in Nova Plantarum Genera, p. 212, Plate 91. 1729. 



Compare Link, in Obs. p. 16. 1809; Corda, in Icones Fungorum 



4:31, Tab. VII, fig. 94. 1840; and Thorn and Church, in 



The Aspergilli, p. 4. 1926. 



Vegetative mycelium consisting of septate branching hyphae, colorless, 

 bright colored, or in a few forms slowly becoming brown in localized 

 submerged areas, or producing brown crusts, or sclerotia; conidial apparatus 

 developed as conidiophores and heads from specialized, enlarged, thick- 

 walled hyphal cells (the foot-cells) producing conidiophores (stalks) as 

 branches approximately perpendicular to the long axis of the foot-cell 

 and usually to the surface of the substrata in or upon which they are borne ; 

 conidiophores unseptate or septate, usually enlarging upward and broaden- 

 ing into elliptical, hemispherical, or globose fertile vesicles bearing fertile 

 cells or sterigmata either parallel and clustered in terminal groups, or 

 radiating from the entire surface; sterigmata either in one series only, or 

 as a primary series, each bearing a cluster of two to several secondary 

 sterigmata at the apex; conidia varying greatly in color, size, shape, and 

 markings, successively cut off from the tips of the sterigmata by crosswalls 

 (not produced by budding), and forming unbranched chains arranged into 

 radiate (globose) heads or packed into columnar masses; perithecia found 

 in certain groups only, unknown in most species, cleistocarpic, thin-walled, 

 producing asci and ascospores within a few weeks; sclerotia regularly found 

 in some strains, occasionally found in other strains, and not found in other 

 and closely related strains, mostly globose or subglobose, composed of 

 polyhedral thick-walled cells. 



Eurotium Link, in Obs. p. 31, Taf. 2, fig. 44. 1809. 



Synonym : Mucor herbariorum Wiggers, in Primitiae Florae Holasticae 

 as No. 1158. 1780. See also DeBary, in Bot. Ztg. 12: 425. 

 1854. 



The yellow perithecia suspended in networks of hyphae above or at the 

 surface of his badly dried herbarium specimens were taken by Wiggers 

 (1780) as the basis of Mucor herbariorum. Link (1809) recognized the 

 bodies as ascosporic, hence segregated them under the generic name 

 Eurotium. Then in 1854 DeBary published proof that these perithecia 

 were borne upon the same mycelium as the asexual A. glaucus fruits among 

 which they developed. He then called each of his Aspergilli, Eurotium 

 Aspergillus followed by the specific name, whether ascosporic strains were 

 known or not. In spite of technicalities invoked by some to bolster the 



