Fuscocerrena portoricensis (Fr.) Ryvarden 1982

Cerrenella farinacea (Fries) Murrill
Irpex farinac€2{S Vri&s^ I^innaeaS: 523. 1830.
Poria portoricensis Fries, Epicr. Myc. 483. 1838. (Type from Porto Rico.)
Hydnum trachyodon I,ev. Ann. Sci. Nat. III. 2 : 302. 1846. (Type from Bogota, Colombia.)
Irpex griseofu'scus Mont. Syll. Crypt. 174. 1856. (Type from Guiana.)
Irpex coriaceus Berk. & Rav. Grevillea 1 : 101. 1872. (.Type from South Carolina.)
Daedalea Btirserae Pat. Jour, de Bot. 8 : 341. 1889. (IVp^ ixom Martinique.)
Cerrenella coriacea Murrill, Bull. Torrey Club 32 : 361. 1905.
Pileus very thin, soft, flexible, coriaceous, entirely resupinate or effused-reflexed, the reflexed portion dimidiate, imbricate, laterally connate, 0-1 X 1-5 X 0.1 cm.; surface finely concentrically striate, tomentose, umbrinous-chestnut ; margin very thin, undulate to lobed, sterile : context membranous, concolorous, papery-thin ; tubes short, 1 mm. or less, irregular, 2-3 to ct mm., edges thin, fimbriate to lacerate, dentate, separated at a very young stage forming an irpiciform hymenium, yellowish-green to olive and finally cinereous and farinaceous: spores smooth, hyaline, 6-7 X 2.5 /i; basidia hyaline, 15X4-5/^.
Type LOCALITY : Brazil.
Habitat : Decaying limbs of oak and other hardwood trees.
Distribution : Tropical America, and northward in the United States to Ohio and Iowa.

Cerrenella subcoriacea Murrill, sp. nov
Pileus coriaceous, rather flexible, effused-reflexed, the reflexed portion dimidiate, imbricate, often laterally connate, 1-2X2-5 X 0.3-0.7 cm.; surface somewhat zonate, finely tomentose to glabrous, dark chestnut-colored ; margin entire to lobed, bay, tomentose, very thin : context very thin, less than 1 mm., chestnut-colored, soft, fibrous ; tubes often reviving, 2-4 cm. long, umbrinous-chestnut and powdery within, hymenium irregular, daedaleoid to iripiciform, mouths 1-2 to a mm., edges thin, firm, glistening, chestnutcolored to very dark-fuliginous, soon splitting into flat, more or less pointed teeth.
Type collected in Nicaragua, on dead wood, B. Shhnek. Distribution : Known only from the type locality.