Nigrofomes melanoporus (Mont.) Murrill 1904

Nigrofomes melanoporus (Mont.) Murrill, Bull. Torrey
Club 31: 425. 1904.
Polyporus melanoporus Mont. PI. Cell. Cuba 422. 1842.
Fames melanoporoides Cesati, Myc. Borneo 5. 1879. (Type from Borneo.)
Fames Corntt-bovis Cooke, Grevillea 13 : 2. 1884. (Type from Malaya.)
Pileus very hard, ligneous, heavy, conchate to applanate, sessile, dimidiate, decurrent, 6-10X10-15X1-2 cm. surface tomentose, nearly smooth, fuliginous to black, becoming glabrous, shining, several times sulcate and often rough and tuberculose with age ; margin usually deflexed at least when dry, sterile, rounded, rarely acute, finely tomentose, castaneous-umbrinous, becoming bay when bruised : context hard, fibrous, zonate, lustrous, dark reddish-violet to chestnut-colored, 5 mm. thick, much thinner in old specimens; tubes distinctly stratified, 3-4 mm. long each season, blackish to black the first year, avellaneous in the older layers, mouths circular, minute, 5-6 to a mm., edges thitk, entire, umbrinous, becoming angular, thin and dark smoky-black with age : spores ovoid, smooth, h3^aline.
Type locality : Cuba.
Habitat : Trunks of trees.
Distribution : Southern Florida ; Nicaragua ; Cuba ; Jamaica ; also in tropical Asia.