Portal de Periódicos da CAPES

Diagnoses of American Porias—I

1922; Taylor & Francis; Volume: 14; Issue: 1 Linguagem: Inglês

10.1080/00275514.1922.12020365

1557-2536

L. O. Overholts,

Cancer and Skin Lesions

PORIA AMBIGUA Bres., Atti Accad. Rovereto III 3: 84. I897 Original Description: Latissime effusa, margine superiore reflexo, alba, demum stramineo-isabellina, subiculo membranaceo, arcte adnata, albo, tubuli ut plurimum obliqui, hic inde nodulosocongesti, usque ad 8 mm. longi; pori majusculi, angulati, demum dentato-laceri; sporae hyalinae, obovatae, 5-8 x 3.5 /; basidia clavata, I8-20 x 6-8 ; cystidia fusoidea, apice muricelata et demum laeva, 24-30 x 6-8 ; hyphae subhymeniales tenuiter tunicatae, septatae, 3-4 , latae. Ad truncos Fagi, Carpini, . . . Piri communis . . . Robiniae pseudacaciae. Nutat inter Poria et Irpices. Redescription: Annual, effused in orbicular or elongated patches 3-o1 cm. long and 2-5 cm. broad, inseparable, where best developed with a regular, white, sterile, shortly pubescent margin 2-2.5 mm. broad; subiculum thin, white, inconspicuous; tubes unstratified, 0.5-6 (usually 2-4) mm. long, pure white to dirty white when fresh, often cinnamon-buff to cinnamon in dried plants, angular, very thin-walled, often with the shape of an inverted cone, the dissepiments finely ciliate-dentate, averaging 1-3 per mm.; spores ellipsoidal or oblong-ellipsoidal, smooth, hyaline, 4-6 x2.5-3.5 ; cystidia absent or very inconspicuous; tramal tissue compact, of long and flexuous, simple or somewhat branched hyphae, with occasional or rare cross walls, no clamps, diameter 3-4.5 ; subiculum hyphae more branched, with more numerous cross walls, no clamps, diameter up to 6 p. * Contribution from the Department of Botany, The Pennsylvania State College, No. 35. [MYCOLOGIA for November (13: 279-365) was issued January 21, 1922.]