682 CORTICIUM 



2312. C. populinum (Sommerf.) Fr. 



Populinum, pertaining to poplars. 



R. 1-3 cm., cinereous ferruginous, effused, tubercular, soon confluent, 

 at length involute, marginate, white tomentose beneath. Hymenium 

 ferruginous, uneven. Flesh soft, thin. Spores "white, subglobose, 

 7-8 /JL" Massee. Poplars. Rare. 



2313. C. foetidum B. & Br. Massee, Linn. Soc. Bot. Jour, xxvn, 

 t. 6, fig. 3. Foetidum, stinking. 



R. 630 mm., white, then ochraceous, effused, crustaceous, arachnoid 

 beneath. Hymenium concolorous, smooth. Flesh crustaceous, thin. 

 Spores white, "elliptical, 7 x 4/x," Massee. Smell very foetid when 

 fresh. Sawdust. Rare. 



2314. C. flaveolum Massee. Flaveolum, yellowish. 

 R. 5-7-5 cm., clear pale primrose yellow, effused, loosely attached 



to the matrix; margin determinate. Hymenium concolorous, smooth. 

 Flesh membranaceous, thin. Spores white, cylindric-eUipsoid, obtuse 

 at both ends, 7 x 5/n. Trunk of tree fern in a conservatory. Rare. 



2315. C. anthochroum (Pers.) Fr. (= Hypochnus anthochrous (Pers.) 

 Quel.) avdos, a flower; %/3o>9, colour. 



R. 315 cm., bright rose colour, or brick red, becoming pale, broadly 

 effused; margin white, byssoid, pruinose. Hymenium concolorous, 

 waxy, sometimes cracked when dry, usually sterile and minutely 

 velvety. Flesh membranaceous, very thin. Spores white, "elliptical, 

 11-13 x 8-9 p" Massee, "ovoid, globose, 5/u, with a large central 

 gutta" Quel. Sycamore and birch sticks. Feb. Rare. 



2316. C. molle Fr. Molk, soft. 

 R. 2-9 cm., pale, or flesh colour, more or less spotted with red, effused, 



subrotund, easily separable, villose underneath; margin naked. Hy- 

 menium concolorous, waxy, papillose, cracked when dry. Flesh mem- 

 branaceous, floccose, loose, soft, thick. Spores white, "cylindric 

 ellipsoid, obtuse at both ends, 7 x 5/u," Massee. Pine trunks and bark. 

 Rare. 



2317. C. strigosum (Pers.) W. G. Sm. var. filamentosum W. G. Sm. 

 (= Peniophora byssoidea (Pers.) von Hoehn. & Litsch. sec: 

 Wakef. in litt.) Strigosum, lean. 



R. web-like, filamentous, string-like, dull yellowish, externally pul- 

 verulent. Amaryllis. 



C. echinosporum Ellis = Hypochnus echinosporus (Ellis) Burt. 

 C. sulphureum (Pers.) Bres. = Hypochnus t'umosus Fr. 

 C. amorphum (Pers.) Fr. = Aleurodiscus amorphus (Pers.) Rabenh. 

 C. evolvens Fr. = Corticium laeve (Pers.) Quel. 

 C. Typhae (Pers.) Fr. = Epithele Typhae (Pers.) Pat. 



