218 A MANUAL OF THE PENICILLIA 



P. citreo-viride. Biourge's original description and figures point to the identity of 

 the two forms within the limits of average strain variability. A culture from the 

 Centraalbureau in 1946 under this name (as originally from Biourge), is not strictly 

 monoverticillate and shows little or no yellow color in mycelium or colony reverse, 

 the characters upon which the species was originally based. The strain in question 

 approximates P. jenseni Zaleski in the Divaricata. 



PenicilUum subcinereum Westling (Arkiv for Botanik 11: 137-139, fig. 80. 1911) 

 was regarded by Biourge (Monogr., p. 273. 1923) as a synonym of P. citreo-nigrum 

 Dierckx. Biourge apparently obtained a culture from Amsterdam (Westerdijk) as 

 P. subcinereum and identified it with Dierckx's organism from unpublished notes and 

 colored plates. Both species are here regarded as synonymous with P. citreo-viride 

 Biourge. 



Citromyces sormanii Carbone (Atti. 1st. Bot. dell Universita Pavia, Ser. II, 14: 

 290-295, 321, Taf. XII, figs. 2, 3, 4. 1910) was isolated from Italian sausages and 

 cultivated upon various media. Certain characters stand out in Carbone's Latin 

 diagnosis: Colonies glaucous; sterile hyphae about Iju diameter — hence a fine close 

 felt; conidiophores simple or branched (in the figure borne as short branches of trail- 

 ing hyphae), broadening to a clavate apex, 132/* long by 1.5m in diameter, conidial 

 mass forming a column; sterigmata 3 to 6 in the verticil, 7 by 2.5/x; conidia in long 

 chains, green, smooth, 2n in diameter. This species has not been identified since 

 described, hence does not appear in any collection but probably was near PenicilUum 

 citreo-viride Biourge. 



Penicilliuni necrosiferurn Morotchkovsky (Bui. Sci. Rec. Biol. Univ. Kiev. 2: 79, 

 fig. 9. 1936) was described in terms which seem to relate it to P. citreo-viride Biourge. 

 The type has not been seen. A translation of the latin diagnosis follows: Colonies at 

 first white, at length yellowish, with water drops numerous, yellow, round, convex, 

 radiately furrowed with margin somewhat elevated, snowy white lanose; reverse 

 yellowish green; submerged hyphae, colorless, branched, septate, with cells 22 to 27 

 even to 48m long by 4.0 to 4.5^ in diameter; conidiophores arising from aerial hyphae 

 unbranched or branched with apices inflated, erect, smooth, 40 to 81/x by 2.5 to S.Ojit; 

 sterigmata 4, 6, or 8ju by 2.7/x; conidia at first elliptical in chains, then globose, 2.0 to 

 2.5/1 in diameter, slightly yellowish without connectives; no coremia; odor lacking. 



PenicilUum roseo-purpureum Dierckx, in Soc. Scientifique Bruxelles 25: 

 p. 86. 1901. Biourge, Monograph, La Cellule 33: fasc. 1, pp. 317- 

 319; Col. PI. X, PL XVI., fig. 96. 1923; ibid. 36: 482. 1925. Also 

 Thorn, The PenicilUa, p. 181. 1930. 



Colonies on Czapek's solution agar growing restrictedly, attaining a 

 diameter of 1.5 to 2.0 cm. in 12 to 14 days in most strains, up to 2.5 to 

 3.0 cm. in others, raised in central areas, deeply wrinkled, in some strains 

 in radial pattern only, in others showing concentric ridges and irregular 

 folding in central area, margins abrupt, consisting of a tough, closely 

 woven felt of fine hyphae, very light sporing, mostly grayish white to 

 flesh colored or pale pink, becoming light grayish green near gnaphalium 

 to pea green (Ridgway, PI. XL VII) in marginal areas where conidium 

 production is most abundant; exudate lacking or limited in some strains, 



