53i A MANUAL OF THE PENICILLIA 



Penicillium uriicae Bainier, in Bui. Soc. Mycol. France 23: 15-16, PI. IV, 

 figs. 1-5. 1906; ibid. 23; PI. V, figs. 10-16. 1907. Thorn, The 

 PeniciUia, pp. 418-419. 1930. 

 Synonyms: P. patulum Bainier, in Bui. Soc. Mycol. France 22: 208, 

 PL XI, figs. 14-17. 1906. 

 P. flexuosum Dale, in Ann. Mycol. 24: 137. 1926, previ- 

 ously published in Biourge's Monogr., La Cellule 33: fasc. 

 1, pp. 264-265; PL XIX, fig. 110. 1923. 



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

 diameter of 2.0 to 2.5 cm. in 12 to 14 days at room temperature, radiately 

 furrowed in most strains (fig. 137A), with margins abrupt and with central 

 area often somewhat raised, ranging from 0.5 to 1.0 mm. deep in marginal 

 areas to 2.0 to 3.0 mm. deep in colony centers; surface distinctly granular 

 in most strains, with prominent fascicles usually produced at least in the 

 marginal areas, heavily sporing throughout, approximately gnaphalium 

 green (Ridgway, PL XLVII), in some strains less heavily sporing and 

 somewhat floccose, approximately court gray (R., PL XLVII), and in oc- 

 casional heavily sporing strains appearing darker green near pea green or 

 artemisia green (R., PL XLVII); exudate not produced in some strains, 

 abundantly in others with droplets typically large, clear or nearly so, and 

 often largely embedded in the colony mass; odor distinctive and fragrant 

 in some strains, not pronounced in others; reverse at first dull yellow be- 

 coming orange cinnamon (R., PL XXIX) to reddish bro\vn shades, with 

 agar slightly colored beyond the colony margin ; penicilli loosely divergent, 

 comparatively large but extremely variable in pattern and dimensions, 

 commonly 40 to 50/x in length but ranging from 20 to 80^, bearing more or 

 less divergent conidial chains up to 50 to lOOju in length (fig. 136A) ; conidio- 

 phores partly in fascicles, partly simple, undulate or sinuate (fig. I36A3), 

 with walls smooth, commonly ranging up to 400 to 500m ov more in length 

 by 3.0 to 4.0m in diameter; penicilli variously branched with conidium 

 bearing elements commonly arising at different levels (fig. 136B) ; branches 

 divergent but mostly 15 to 20/i l)y 3.0 to 3.5m ranging from 12 to 30m by 

 2.8 to 4.0m; secondary branches, when present, mostly 12 to 15m by 3.0 to 

 3.5m, but ranging from 10 to 20m by 2.5 to 3.5m; metulae comparatively 

 short, mostly 7 to 9m by 3.0 to 3.5m, commonly in groups of 2 to 4; sterig- 

 mata short, 4.5 to 6.5m by 2.2 to 2.5m, crowded in the verticil (fig. 136B), 

 commonly in clusters of 8 to 10; conidia elliptical or tardily subglobose 

 (fig. 136C) mostly 2.5 to 3.0m in long axis with walls thin, smooth. 



Colonies on steep agar growing somewhat more rapidly, 3.0 to 3.5 cm. 

 in 12 to 14 days, in appearance and texture essentially as on Czapek (fig. 

 137B) but generally heavier sporing, and with greater exudate production; 

 odor not characteristic; reverse in dull brown shades; penicilli as on Czapek. 



