USE OF THE MANUAL 125 



2. Colonies with surface appearing funiculose, floccose-funiculose, or 



occasionally somewhat tufted P. funiculosum series 614 



3. Colonies with ropiness absent or reduced and with surface typically 



velvety. 



a. Colonies usually developing an intense red or purple-red pigmen- 



tation in mycelium and reverse, with most strains growing 

 fairly rapidly P- purpurogeniiin series 631 



b. Colonies never developing an intense red pigmentation, growing 



very restrictedly upon Czapek and steep agars 



P. rugulosum series 646 



4. Colonies comparatively deep, often appearing lanose; with vegetative 



mycelium typically in yellow-green shades and with reverse often 



similarly colored. '. P- herquei series 658 



IV. Penicilli large, usually symmetrical, typically branched at three or more 



levels below the sterigmata Polyverticillata Section 668 



V. Forms producing conidial structures often more or less penicillate but ex- 

 cluded from the genus PeniciUium. 



A. Colonies variously colored, in cream to rose or in various green shades; 



conidial structures usually penicillate but with conidia typically col- 

 lecting into slime balls rather than remaining adherent in chains; 

 ascosporic stage unknown Gliocladium Corda 674 



B. Colonies never green; conidial structures often penicillate, but with un- 



usually long sterigmata showing tips characteristically bent away 

 from the main cell axes; ascosporic stage (Genus: Byssochlatnys) con- 

 sists of naked asci borne upon fertile hyphae not collected into a peri- 

 thecium Paecilomyces Bainier 688 



C. Colonies never showing true greens, ranging from white to tan or rust, 



through brown to smoke or fuscous shades; conidial structures often 

 more or less penicillate; conidia truncate at base, characteristically 

 showing a basal ring surrounding a germinal pore; ascosporic stage 

 (Genus: Microascus) shows dark-walled, ostiolate perithecia 



Scopulariopsis Bainier 694 



