GLIOCLADIUM, PAECILOMYCES, AND SCOPULARIOPSIS 701 



Eepresented by strains from Baarn as Scopulariopsis aira Zach, S. croci v. 

 Beyma, S. danica v. Beyma, and S. sphaerospora Zach. 



Group VII: Colonies growing restrictedly and very thinly on Czapek, 

 heavy sporing but equally restricted on steep agar, spreading on malt with 

 conidial areas in dark olive green to fuscous shades; conidia globose or 

 nearly so, with walls coarsely roughened. Represented by a strain in our 

 Collection tentatively identified as possibly representing a form similar to 

 Sopp's Acaulium nigrum. 



Group VIII: Colonies spreading broadly on all media, very thin on 

 Czapek, heavily sporing on steep and malt agars. Conidial areas in deep 

 slate colors. Conidia elliptical and with basal ends less conspicuously 

 flattened than in any of the above, forming long chains and the chains re- 

 maining adherent in fluid mounts, walls smooth, appearing dematiaceous. 

 Represented by a strain in our Collection tentatively identified as possibly 

 approximating Scopulariopsis costantini (Bainier) Dale. The pattern of 

 the penicillus in this strain is somewhat suggestive of the polyverticillate 

 Penicilli (Chapter XIV). 



Group IX: Colonies somewhat restricted, wet, tending to be strongly 

 funiculose, essentially non-sporulating on Czapek and steep agars; on malt 

 agar sporulating moderately well, in yellow-gray shades, producing conidia 

 of two types, (1) elHptical, smooth conidia in fairly long aerial chains, and 

 (2) globose, conspicuously roughened conidia in shorter chains adjacent 

 to the substratum. Represented by a culture received from Baarn as 

 Scopulariopsis diversispora v. Beyma. 



Ascosporic Phase 



Curzi (1930, 1931), Emmons and Dodge (1931), and Jones (1936) have 

 described ascosporic stages belonging to the genus Microascus Zukal (1890) 

 for molds with a Scopidariopsis conidial phase. Loubiere (1924) had de- 

 scribed a new genus and species, Nephrospora mangini, for the ascosporic 

 stage of Scopidariopsis Candida (Pers.) Loub. Both Curzi, and Emmons 

 and Dodge regarded Nephrospora as synonymous with the older genus 

 Microascus, as they did also Sopp's Acaulium albo-nigrescens (1912) which 

 was described with small black globose to pear-shaped perithecia ^\■ith dis- 

 tinct ostioles. Zach (1934) described S. alho-flavescens as ascosporic with 

 small black perithecia. 



The ascocarps or perithecia of Microascus species are characterized by 

 heavy black walls and are ostiolate. They are thus clearly different from 

 any of the ascosporic structures seen in any section of the genus Penicillium. 

 Upon the basis of these structures, Curzi would transfer the genus Micro- 

 ascus to the Sphaeriales. Emmons and Dodge regard the genus as making 

 more complete a series of genera that is transitional from Aspergillus and 



