FUNGORUM - Acervo Digital de Obras Especiais

634 Agaricineæ, Leucosporæ, Xerotus.
orbiculari v. reniformi, centro umbilicato-depresso; colore superne
atro-fusco v. olivaceo, in parte hymeniifera melleo-fulvo; lamellis
distantibus crassis, acie repando-obtusis, subpliciformibus, basi sepius
binis connatis v. sursum furcatis, rarius simplicibus, fulvo-melleis;
stipite perbrevi subobliquo v. lateraliter incurvo, cylindrico
sæpe ramoso v. 2-3 connatis, raro simplici, atro, scrupuloso, a pileo
constrictione sæpius diviso; carne pilei in hymenophoro ac stipite
continua, alba, compactissima, coriacea.
Hab. in trunco cavo vetusto Salicis Humboldtianæ en Barracas
del Sur, Argentinæ Amer. merid. (J. CISNEROS). - Totus fungus
1,5-2 cm. alt.; pileus 1-1,5 cm. long., 1 cm. crass. v. lat.; stipes
5-8 mm. long., 3-4 mm. crass. Species distinctissima et pulchella
sed tantum exemplaribus exsiccatis inventa, idcirco ulterius
inquirenda.
21. Xerotus latoritius B. et C. Journ. Linn. Soc. X, p. 303. - Pi- 2613
leo suborbiculari, vertice affixo, sulcato, lateritio; lamellis distantibus,
latiusculis, integris, nigris.
Hab. ad cortices emortuos Cubæ Amer. centr. (C. WRIGHT),
Florida Amer. fœder, et in Chile Amer. merid., in ligno emortuo
Peradenya Ceylon (THWAITES). - Homonyma et, ut videtur, eadem
species sic describitur in B. et C. Cent. N. Am. Fungi n. 35: pileo
sessili, reniformi, convexo, lateritio, 6-7 mm. lat., margine involuto;
lamellis paucis, atro-fuscis. Ad ligna Santee Canal Caro-
linæ (RAVENEL). An Anthracophyllum?
22. Xerotus viticola B. et C. North Am. Fungi n. 105, X. lateritius 2614
Rav. Fasc. IV, n. 3. - Pileo tenui, nigro, ramoso-sulcato, scabro;
margine pallidiore; lameltis latiusculis.
Hab. in Carol. inf. (CURTIS). - Pileus 18 mm. latus.
23. Xerotus Caffrorum Kalch. et M. Ow. in Grev. IX, p. 136. - Pi- 2615
leo membranaceo-coriaceo, integro, convexo, late umbilicato, radiatim
rugoso, glabro, alutaceo; stipite farcto, subæquali, concolore;
lamellis adnato-decurrentibus, distantibus, crassis, obtusis, ramosis,
immixtis paucis brevioribus, pallidis.
Hab. in densis silvis, sub fruticibus mont. Boschberg Afr. austr.
et P. Natal (MAC OWAN). - Pileus 2-4 cm. latus.; stipes 4-9 cm.
longus, 2-5 mm. crassus. Solitarius et subcæspitosus.
24. Xerotus papyraceus Berk. Fl. Tasm. pag. 250, tab. CLXXXII, 2616
fig. 2. - Papyraceus; pileo pallido, striato v. levi, tenui, margine
demum expanso; lamellis simplicibus fuscis, v. pallidis.
Hab. in ligno putri in Tasmania (HOOKER, ARCHER).