ASYMMETRICA-DIVARICATA 259 



1". Conidia elliptical, rough with echinulations arranged in 



spiral or transverse bands P. daleae Zaleski 296 



2". Conidia elliptical to subglobose, usually roughened but 

 with echinulations not arranged in spiral or transverse 

 bands, 

 aaa. Vegetative mycelium and colony reverse often 

 strongly colored (orange-red, reddish purple, 

 etc.) in new isolates ... P. janthinelliun Biourge 299 

 bbb. Vegetative mycelium uncolored or light buff to 

 peach; colonies sporulating sparingly or tardily; 

 colony reverse colorless or in yellow to orange 

 shades. 

 V" . Conidiophorcs conspicuously roughened; peni- 

 cilli commonly consisting of a terminal 

 verticil of divergent metulae; conidia ellip- 

 tical to subglobose, finely echinulate; 

 reverse uncolored to yellow 



P. simplicissimum (Oud.) Thom 304 

 2'". Conidiophorcs finely roughened; penicilli 

 irregular; conidia elliptical, smooth or finely 

 -roughened; reverse in orange shades 



P. ochro-chloron Biourge 305 

 3'". Conidiophorcs smooth or nearly so; penicilli 

 commonly irregular; conidia mostly sub- 

 globose, conspicuously roughened; reverse 

 in cream to light tan shades 



P. piscariinn Westling 308 

 4'". Conidiophorcs smooth or nearly so; penicilli 

 irregular; conidia subglobose to elliptical, 

 smooth; reverse in bright yellow to yellow- 

 orange shades P. miczynskii Zaleski 309 



bb. Sterigmata not abruptly tapered to conidium-bearing tubes; 

 colonies commonly becoming funiculose 



P. godlewskii Zaleski 312 

 2'. Conidial chains tending to form columns, at least in young cul- 

 tures; conidia globose to subglobose, somewhat roughened 



P. canescens series 315 

 aa. Colony reverse developing deep red or brown shades; peni- 

 cilli strongly divaricate, not tending toward ramigenous. 

 1". Colonies 500 to 1000m deep, with surface growth loose, 

 more or less floccose; conidial areas in dull blue-green 

 shades; conidia about 2.0 to 2.5/u; reverse orange, be- 

 coming rich brown in age P. canescens Sopp 316 



2". Colonies deeply floccose, 2 to 3 mm. deep; conidial areas 

 in brighter greenish glaucous shades; conidia about 

 3.2 to 3.6/i; reverse in deep red shades near maroon 



P. nalgiovensis Laxa 319 

 bb. Colony reverse uncolored or in dull ]K>ach shades, not de- 

 veloping dark colors; penicilli often appearing somewhat 

 ramigenous P. jenseni Zaleski 322 



