MONOVERTICILLATA 131 



consisting of a loose network of interlacing hyphae bearing short 

 cotiidiophores. 

 1'. Conidial areas in light gray-green shades with reverse uncolored 

 or in yellow drab shades on Czapek agar but becoming cherry 



red on malt agar P. chermesinum Biourge 206 



2'. Conidial areas in dull blue-green shades with reverse usually 



uncolored on all media P. decumbens Thom 209 



b. Colonies close-textured, tough, almost leathery, restricted, with 

 margin compact but showing occasional stolon-like hyphae. 

 1'. Vegetative mycelium yellow, generally characterizing the colony 

 even in age, sporulating lightly on Czapek agar 



P. citreo-viride Biourge 215 

 2'. Vegetative mycelium white, often characterizing the colony 

 when young, but developing blue-green conidial areas in one 

 to two weeks, reverse uncolored or in light vinaceous gray 



shades P. fellutanum Biourge 212 



3'. Vegetative mycelium white to pale vinaceous, sparsely sporu- 

 lating, reverse bright orange-red to maroon 



P. roseo-purpureum Dierckx 218 

 3. Colonies floccose with conidiophores arising primarily from aerial 

 hyphae or floccose-funiculose with aerial hyphae collected into ropes 

 or bundles. 



a. Colonies predominantly floccose with fuuiculose character lacking 



or limited P. restrictum series 222 i^ 



1'. Conidia blue-green becoming dull gray, globose, about 2.5/i, 



conspicuously roughened. P. restrictum Oilman and Abbott 223 

 2'. Conidia olive-green becoming brown, globose, about 4.0^, 



coarsely roughened, tuberculate. P. fuscum (Sopp) n. comb. 226 



b. Colonies with funiculose habit predominant or well developed 



P. adametzi series 227 

 1'. Colonies usually developing dull reddish orange to brown shades 

 in reverse, 

 aa. Conidia subglobose, 2.0 to 2.5^, delicately granular 



P. adametsi Zaleski 228 

 bb. Conidia globose to subglobose, about 3.0m in diameter, 



definitely rough P. terlikowskii Zaleski 231 



2'. Colonies quickly developing deep vinaceous to purple colors in 



reverse and agar Vinaceous sub-series 234 



aa. Exudate abundantly produced, deep vinaceous, conidio- 

 phores short, rarely more than 50m 



P. vinaceum Oilman and Abbott 234 i^ 

 bb. Exudate lacking or limited, conidiophores longer, 200 to 



250m P- phoeniceum van Bej^ma 236 



B. Conidiophores mostly branched, occasionally rebranched, each bearing a 

 terminal monoverticillate penicillus but not arranged as a definite 



apical verticil of metulae (or branchlets) Ramigena series 239 



1. Colonies growing restrictedly upon all media, mostly 1.5 to 2.5 cm. in 

 diameter in 10 to 12 days, 

 a. Conidia definitely elliptical, smooth-walled. 



1'. Conidial areas in gray-green shades, with conidia strongly ellip- 



