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772 Tremellineæ, Exidia.<br />

EXIDIA Fr. Syst. Myc. II, p. 220 (Etym. exidio exsudo). - Fungi<br />

gelatina distenti, tremuli, submarginati vel effusi, sæpe papillosi,<br />

strato gelatinoso sæpe colorato tecti. Basidia globoso-ovoidea, typice<br />

long. cruciatim partita, apice storigmata subquaterna bacillaria<br />

ferentia. Sporæ reniformes diu continuæ, germinando bi-pluriloculares,<br />

e quoque loculo filamentum brevissimum sporidiolis<br />

arcte curvatis coronatum gerentes.<br />

I. AUPRICULINÆ Fr. Pezizoideæ, marginartæ.<br />

1. Exidia truncata Fr. Syst. Myc. II, p. 224, Hym. Eur. p. 693, Bref. 8338<br />

Unt. VII, 4. V, f. 18. - Mollis, gelatina distenta, disco truncatoplano,<br />

glanduloso, aterrimo, nitido, demum cavernoso, subtus punctato-scabra;<br />

stipite brevissimo sporis oblongis, curvatis, chlorinohyalinis,<br />

833814-16 5-6 (Karst.), 20 7 (B ref.)<br />

Hab. in ramis exsiccatis Tilæ in Europa et ad ramos emortuos<br />

in Pensylvania Amer fœder. (MICHENER). - Simili loco lecta<br />

Auricularia truncata Fuck., sed e specimine ab auct. Friesio communicato<br />

haud paullum differt. Circiter 2 cm. alta et lata. Humetrata<br />

non turgescit, structura Auricularice, nec glandulas vidit<br />

auctor, hinc verisimiliter forma generis Auriculariœ.<br />

2. Exidia recisa Fr. Syst. Myc. II, p. 223 cum synon, copiosis, Hym. 8339<br />

Eur. p. 693, Bref. Unt. VII, t. V, f. 19, Weinm. pag. 526, Berk.<br />

Outl. p. 289, Tremella Dittm. apud Sturm I, t. 13, Pers. Myc.<br />

Eur. I, p. 103 et Tr. salicum ibidem p. 102, Tr. sagarum Retz.<br />

in Vet. Ak. Handl. 1769, p. 240, Tr. boletiformis Engl. Bot.<br />

t. 1819. - Mollissima, gelatina distenta, disco truncato-plano, costalo,<br />

papilloso, subrepando, fusco-succineo, subtus punctato-scabra;<br />

stipite brevissimo, excentrico, obliquo.<br />

Hab. ad ramos mortuos Salicum, copiose in Europa, Andromedæ<br />

arboreæ et Quercus in Carolina inf. Amer. fœder., Blue<br />

Canoa in montibus Sierræ Nevadæ. - Gregaria 1-2 cm. lata.<br />

Sporæ oblongæ 10-13 2-3 (Karst.), 20 7 (Bref.). Antiquitus celebrata.<br />

3. Exidia atraminea Berk. in Hook. Journ. Bot, III, p. 19, Fr. Hym. 8340<br />

Eur. p. 693. - Erumpens, cupulæformis, straminea, basi rugosa,<br />

stipitiformi, extus subtiliter pubescens, intus subplicata.<br />

Hab. ad corticem levigatum in Gallia meridionali. Minor, 8-12<br />

mm. lata, stipite brovi, sulcato. E. recisœ Videtur proxima.

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