ttymenom.vcetfe, Thelephoracefe, Corticium. 403 



52. Corticium Weisseanum (Henu.) W. Herter in Kryptogameufl. 1549 

 Brandenb. VI, 1 (1910) p. 100. — Arachnoideo-membranaceum, 

 album, muscos obtegens; hyphis laxe intertextis, hyalinis, ramosis, 

 ramulis laxis clavulatis, 15-22 w 4-6, vertice in 2, rarius 4-sterig- 

 mata incurvata abeuntibus; sporis globosis v. subglobosis, hyalinis 



4-5 [X, diam., membrana levi v. minutissime punctata. 



Hah. in csespitibus Leucobryi vulgaris in silvis acerosis, 

 inter Nahmitz et Lehnin pr. Potsdam GermanisB (Weisse). — 

 Inter hyphas occurrunt copiosa conidia (?) 7-10 [j.. diam., umbrino- 

 brunnea, aculeata, verisimihter heterogenea. 



53. Corticium subacerinum (v. Hohn. et Litsch.) Sacc. et Trav. — 1550 

 Syll. XIX, p. 438. — Alem'odiscus suhacerinus v. Hohn. et Litsch., 

 Sitzb. k. Ak. d. Wiss. Wien CXVI (1907) p. 807, tab. II extr., 



fig. 5, Cortic. acerinum b quercinum W. Brinkm. Westf. Pilze, 

 non Pers. — Irregulariter efFusum, tenuiter membranaceum, di- 

 stincte marginatum, arcte adhserens, candidum; hymenio glabro; 

 basidiis clavatis 7-9 \i. cr., 4-sterigmaticis, sterigmatibus subulatis, 

 10-12« 1,5; sporis cylindraceis basi oblique apiculatis, 10-14 « 5-6, 

 hyalinis levibus, guttulato-farctis; dendrophysibus sursum den- 

 droideo-ramosis. 



iZ^aft. ad corticem vetustum Salicis et Alni, Lengerich West- 

 falise (Brinkmann). 



54. Corticium apricans (Bourd.) Sacc. et Trott., Aleurodiscus apricans 1551 

 Bourdot, Rev. scient. Bourbonn. et du Centre tab. XXIII (1910) 



p. 5. — Expansum, rotundatum, 2-3 mm., dein confluens, ceraceo- 

 crustaceum adnatum sub lente pruinosum, avellaneum v. isabelli- 

 num, zona marginali nulla v. tantum pruinosa; hymenio fertili; 

 basidiis aliis clavatis 30-65 « 8-13, 2-4-sterigmatis subulatis arcua- 

 tis prseditis, aliis sterilibus obovatis, 15-18 » 4-12 in trama varie 

 positis et varie conformatis ; aliis sterilibus angustissimis apice cu- 

 spidatis v. non; sporis elhpsoideis 12-15 5^8-12, levibus v. obscure 

 verruculosis; hyphis parietibus tenuibus pr;rditis, 3-4 ;x. cr., irre- 

 gularibus, crebre septatis, non nodosis; hyphis mycolio similibus. 

 Hah. in Calluna vulgari, Bouisson prope Saint-Sernin, 

 Aveyron Galliai. — Aleur. aurantio (Pers.) et A. cerussato (Bres.) 

 proxlmum. 



55. Corticium spinulosum (P. Henn.) Sacc. et Trott., Aleurodisciis 1552 

 ?spinulosus P. ilenn., Engl. Jahrb. XXXVIII (1905) p. 107. — 

 Resupinatum, medio affixum, rotundatum v. lato effusum, mem- 

 branaceo-ceraceum, margine involutum; hymenio pallido v. flavi- 



