r
P O L Y P O R U S FERRUGINOSUS.
Thin Rust-coloured Polyporus.
C l a s s a n d O h d e r CRYPTOGAMIA PUNGI, L in n—N a t . O b d . F U N G I, Link,
Greo.
G EN E R IC CHARACTER.
Hymenium cum pilei substantia homogeneum et concretum, poris dissepimentis te-
nuibus simplicibus instructum— Pileus subcamosus vel suberosas, plerumque
subsessilis, substantia Jibrosa, sicca.
Hymenium of the same substance as the pileus, not separating from it, and
furnished with pores connected by simple dissepiments.—Pileus sub-
carnose or corky, mostly subsessile ; substance fibrous and dry.
S P E C IF IC CHARACTER.
P o l y p o r u s ferruginosus ; resupinatus, ferrugineus, tenuissimo-Jilamentosus,
demum reflexus vel sublateralis, pileo convexo, tenui, subtomentoso, poris in-
oequalibus subangulatis.
P. resupinate, ferruginous, delicately fibrous, at length refiexed or somewhat
la te ra l; pileus convex, subtomentose, thin, the pores unequal,
somewhat angular.
P olyporus fe rru g in o su s , Fries, Syst. v. 1. p. 378— Grev. Fl. Edin. p. 402.
— Hook. Fl. Lond. (New SeriesJ t. l6 3 .
B o l e t u s fe rru g in o su s , Schrad, Spicel. p. 172.—Pers. Syn. Fung. p. 544.—
Alb. et Schwein. p . 255— Schwein. Syn. Fung. Carol, Sup. No. 923.
H a b . On rotten trunks and branches o f trees when lying on the ground.
Autumn. Braid Hermitage.
Plant, in the first stage of existence, resembling a very delicate web o f a
reddish or ochrey colour, which creeps over every substance in its
way, investing dead leaves, the blades of grass, &c. The pores commence
in the centre, and, by the time the plant is matm-e, compose almost
its whole substance. I t is then of various forms, sometimes wholly
resupinate, sometimes pa rtly refiexed, a t others growing immediately and
horizontally from the side of a branch. Surface of the pileus, when
exhibited, as in the latte r case, somewhat rough and tomentose. Substance
none, or extremely thin. Pores rath e r angular, very unequal, from
a few lines, to nearly an inch in length. Sporules oval.
X.