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FUNGORUM - Acervo Digital de Obras Especiais

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Agaricineæ, Leucosporæ, Pleurotus. 385<br />

(CURTIS). - Gregarius; pileus circiter 8 mm. latus, pulverulentus,<br />

subtili pellicula e portione resupinata supra matricem producta instructus;<br />

sporæ cymbiformes 6 µ. long.<br />

210. Pleurotus liliputianus Mont. Guy., n. 279 et Syll. Crypt. n. 363. 1531<br />

- Pygmæus, resupinatus, cupuliformis, centro affixus, albus; pileo<br />

tenerrimo, hemisphærico, supra pilosiusculo, pilis crispulis, subtus<br />

concavo; lamellis e centro radiantibus paucis simplic ibus, dimidia -<br />

tis interjectis, medio convexis utrinque acutis.<br />

Hab. ad ramos <strong>de</strong>jectos in Guyana Amer. merid. - (LEPRIEUR).<br />

- Pileus 1 1/2-3 mm. lat.; lamellæ 1/5 mm. medio latæ.<br />

211. Pleurotus aulaxinus Mont. Cent. IV, n. 77, t. 15, f. 3 et Fl. Chil., 1532<br />

I. c., p. 337. - E resupinato reflexus, hygrophanus; pileo (sicco)<br />

membranaceo, ochraceo, e reniformi suborbiculato, cubullato, radiatim<br />

sulcato; stipite incurvo, brevissimo, badio; lamellis distantibus,<br />

e centro radiantibus, acie obtusis antice tan<strong>de</strong>m venoso-connexis.<br />

Hab. ad ramulos <strong>de</strong>jectos in insula Juan Fernan<strong>de</strong>z (BERTERO).<br />

- *P. Hirneola Speg. F. Arg. Pug. IV, p. 4: pileo orbiculari v. subreniformi,<br />

hemisphærico 1,4-3 cm. tenui subcarnosulo-membrana-<br />

ceo, radiatim laxe costato-sulcato, <strong>de</strong>orsum ad pediculi confluen-<br />

tiam umbilicatulo, primo albo <strong>de</strong>in dilute rufescenti-carneo, quan-<br />

doque adnato-sessili ac reflexo-subresupinato, quandoque pedicel-<br />

lato, libero; stipite concolori v. vix saturatius colorato, parvulo 2<br />

mm. longo, 0,3 mm. crasso v. per ætatem evanescente, glaberrimo,<br />

basi adnato, albo-pruinuloso, in areolam tenuissimam laxissime prui-<br />

nuloso-candidam dilatato; lamellis (melius hymenii plicis) paucis<br />

8-12, pileo concoloribus, apice attenuato-evanescentibus, <strong>de</strong>orsum<br />

subanulatim adnato-truncatis, non sinuatis nec <strong>de</strong>currentibus, inter<br />

se remotissimis, tenui membranaceo-subcarnosulis (ut pileus), api-<br />

cem versus reticulato-venoso-connexis; basidiis clavulatis 25-30<br />

7-8, hyalinis; sporis obovatis, sursum abrupte rotundatis, <strong>de</strong>orsum<br />

attenuato-acutis, 12-14 5, hyalinis. - In Argentina. - Species<br />

pulchella, uda habitum cujusdam Hirneolæ perfecte simulans.<br />

212. Pleurotus heteropus Speg. F. Arg. Pug. IV, p. 5. - Pileo tenui, 1533<br />

membranaceo-tenacello, primo hemisphærico, 1-1,5 mm. d., margine<br />

involuto, albo sed ob puberulositatem fuscam, <strong>de</strong>nsam fulvo-fusce-<br />

scenti, sed evolvendo pallenti, <strong>de</strong>in candido, glabrato, explanato<br />

3-8 mm. diam., sæpe umbilicato et ad stipitis confluentiam fulvo-<br />

puberulo, suborbiculari, postice contracto-emarginato v. subcorda-<br />

to, iove pluvio ceraceo-hyalino, sicco autem opaco-candido, radia-<br />

tim undulato-sulcatulo, margine repando, integro; pedicello, 1-2 mm.<br />

25

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