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Page number:150 
Remarks (internal):Pouzarella ferreri was collected from June to October during 2004 and 2005, with higher numbers of basidiomata produced in July 2004 and August 2005, suggesting that cold temperature triggers basidioma formation.
Pouzarella ferreri is characterized by its red pileus with orange margin covered by red hairs, stipe covered with reddish orange hairs, blackening tissues, white basal mycelium, and presence of cheilocystidia. Pouzarella ferreri is similar to other South America species of the genus in the conspicuous presence of cheilocystidia. It is directly comparable to Pouzaromyces sepiaceobasalis E. Horak from Argentina (Horak 1983) and Rhodophyllus squamifolius (Murrill) Singer cited from Brazil by Singer & Digilio (1952). The former differs from Pouzarella ferreri by possessing a golden brown pileus, smaller basidiospores (14.6-16.2 x 7.8-9.2 µm) and larger cheilocystidia (15-70 x 15-15 µm) and the latter differs by its black to gray pileus (sensu Singer & Digilio 1952) and larger cheilocystidia (56 x 20 µm). Two other species with a reddish pileus are Pouzaromyces aureocrinitus E. Horak and Pouzaromyces erinaceus E. Horak, also from Argentina, but these differ by their absence of cheilocystidia (Horak 1983).
Pouzarella squamifolia sensu Halling & Mueller (2005), cited from Costa Rica, was the closest species to the collected material, differing only in size of pileus (12?20 mm) and basidiospores (14-16 x 7.5-9 µm). The analyzed material and Pouzarella squamifolia sensu Halling & Mueller differ from Pouzarella squamifolia sensu Murrill (Murrill 1915, Singer 1942) by the latter's melleous surface, ferrugineous-fulvous hairs that do not blacken when handled, and broadly fusiform or clavate cheilocystidia (T.J. Baroni, personal communication).
T.J. Baroni (personal communication) examined the identity of P. squamifolia sensu Halling & Mueller and verified that it is Pouzarella ferreri.
 
Description type:Non-original description 
Description:Pouzarella ferreri T.J. Baroni, S.A.Cantrell & Perd.-Sánch., ined. Fig. 2
Pileus hemispheric when young, becoming campanulate to convex, red, with orange margin, tissues turning black from handling or when old, radially translucent-striate and sulcate, covered with red hairs, margin pubescent, context thin, 6-15 mm diam. Lamellae sinuate, grayish, distant, with 1-3 lamellulae. Stipe cylindric, translucent, grayish-white in the apex yellowish in direction the base, turning black when old, covered with reddish orange hairs, decreasing in density towards the apex, hollow, base with evident white strigose hairs, 20-40 x 1-2 (-4) mm. Spore print pinkish with grayish tints.
Basidiospores in profile strongly angled with 7-8 facets, inamyloid, hyaline, assymetric, hilar appendix present, 16-19 x 7.5-10 µm (Qm = 1.78). Basidia clavate, hyaline, tetrasporic, 32.5-44 x 14-17.5 µm, abortive basidia filled with dark brown pigments present. Pleurocystidia absent. Cheilocystidia clavate to globose, hyaline, sometimes brownish, thin-walled, 26?37.5 x 17.5-25 µm. Lamella trama subparallel, hyaline, thin-walled, septate hyphae, walls brown encrusted, hyphae broader at mediostratum, 12.5-24 µm diam., and narrower in laterostratum, 3.5?6.5 µm diam. Pileipellis a hymeniderm, differentiated from the context, with inflated hyphae, brownish, with rounded apex, 29-31 µm diam., interwoven with groups of brownish hyphae, mostly with encrusted walls, septate, 13-20 µm diam. Stipitipellis covered by hairs equal to those of the pileipellis, with non-setiform caulocystidia. Clamp connections absent in all tissues.
Habitat: scattered to gregarious, in Tropical Atlantic Rainforest, saprotrophic.
Distribution: Brazil, Dominican Republic and Costa Rica as Pouzarella squamifolia (Halling & Mueller 2005).
 
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