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FUNGORUM - Acervo Digital de Obras Especiais

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1030 Agaricineæ, Melanosporæ, Hypholoma.<br />

tustas in Amer. fœ<strong>de</strong>r., Port Natal Africæ (WOOD) et in Tasma-<br />

nia. - Pileus 1-5 cm. latus; stipes 5-24 cm. longus, 4-6 mm.<br />

crassus. Colore, tenuitate et odore intense amaro facile distinctum.<br />

Pileus subdiscoi<strong>de</strong>us, sæpe obtusus. Sed exstat var. robustior stipite<br />

basi incrassato, terrestris (Secr. n. 355; var. ß. Pers.), cum H.<br />

silaceo analoga. Alia nana Secr. n. 359. - Var. obtusum Schulz.<br />

Verhandl. Hermann. 1884, p. 21, t. I, f. 2: pileo prima ætate stra-<br />

mineo, medio obscure flavo, convexo, <strong>de</strong>in explanato-umbonato, ob-<br />

scuriori, margine lacerato, carne flavescente; stipite flavo-vire-<br />

scente, subin<strong>de</strong> nigro-punctulato, basi subflavescente, sursum tu-<br />

buloso, basi lanoso; lamellis viridulis, adnexis, angustis. Ad ramos<br />

vetustos arborum in silvis Slavoniæ. - Pileus usque 2,5 cm. la-<br />

tus; stipes 5 cm. longus, 4-7 mm. crassus.<br />

8. Hypholoma megapotamicum Speg. Fung. Arg. Pug. IV, n. 15. 4179<br />

Fasciculato-cæspitosum; primo hemisphærico-subgloboso, 8-10 mm.<br />

diam., centro umbonulato, glabro, margine involuto ac velo cor-<br />

tinæformi, albo, gossypino-fibrilloso stipiti juncto, mox libero sed<br />

squamulose albo-appendiculato, <strong>de</strong>in hemisphæerico-explanato, 20-25<br />

mm. diam., circa umbonem sæpius <strong>de</strong>presso, in juventute toto<br />

fulvo-virescente, postea margine et centro flavescenti-fulvello; sti-<br />

pite subfistuloso, gracili, elongato, 25-32 mm. long., 1-2 mm. cr.<br />

recto vel flexuoso, apicem versus subattenuato, <strong>de</strong>orsum incras-<br />

satulo, 3 mm. cr., confluente, toto ex veli frustulis albo-squamu-<br />

loso præcipue ad tectium superiorem in parte pileo tecta minute<br />

costulato-striato, extus primo flavido, <strong>de</strong>in lateritio-lutescente, fi-<br />

brosulo-tenacello, intus flavo-luteo, subcavo; lamelIis polymacriis,<br />

sinuato-adnatis, confertiusculis, apice acutiusculis, attenuato-rotua-<br />

datis, centro ventricosis, 2 mm. lat., acie integra, primo palli<strong>de</strong><br />

flavo-virentibus, <strong>de</strong>in lateritio-subvirescentibus vel lateritio-fulvis;<br />

carne pilei tenui tantum ad umbonem incrassata, compactiuscula,<br />

succosa, sub sectione v. pressione pellucida eva<strong>de</strong>nte, lutea, cum<br />

illa stipitis concolori continua; sporis ellipticis vel ovoi<strong>de</strong>is 6-8<br />

4-5, utrinque obtusis, (quandoque 1-septatis?) rubiginosis vel oli-<br />

vaceo lateritiis.<br />

Hab. ad truncum vetustum cariosum Salicis humboldtianæ in<br />

nemoribus secus vel Rio <strong>de</strong> la Plata, Palermo. - Cl. Spegazzini<br />

habet ut subspeciem H. fascicudaris.<br />

9. Hypholoma transversum Gill. Champ. <strong>de</strong> France p. 571. - Pileo 4180<br />

carnoso, convexo, <strong>de</strong>in expanso, obtuso, mam millato, margine brevi,<br />

revoluto, glabro, ad peripheriam dilute lateritio-rufo, medio ob-

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