On Hypoxylon multiforme, etc.

Minute, gregarious, crowded (Fries, l. c.).

I have seen several things under this name, but none of them appear to me to answer the description. The Rev. M. J. Berkeley says some of the specimens referred formerly to this species certainly belong to Helotium pruinosum (Jerd).'

*

Name-rí, upon, opaipa, a sphere; growing on a Sphæria.

Doubtful species.

70. Lachnella plano-umbilicata. (Grev.)

Small, sessile, gregarious, whole plant white, globose, concave, at length quite plain; ciliated with horizontal white hairs at the margin; hymenium gently umbilicate. Peziza plano-umbilicata-Grev., "Flo. Edin.,” p. 420; Eng. Flo.," v. p. 198; Cooke, "Handbk.," 2054.

On dead nettles.

Wholly white, remarkably plane, with a small dimple in the centre of the hymenium, which in old age assumes a yellowish tinge. The external surface is covered with white hairs, which form a beautiful ciliated margin not in the least raised. The margin is so irregular, that if there had been fewer cilia it might have been called pectinate (Grev.).

As far as I know, there exists no authentic specimen of this either in the Edinburgh University Herbarium or in the Kew Herbarium.

Cups sessile or subsessile; externally fibrose-striate with adpressed hairs; epiphytal. (Plate VIII. fig. 49.) Name-Fibrinus, of a beaver; from the felty texture of the receptacle.

1

plane;

A. SPORIDIA ELLIPTIC.

rufo-olivacea. fraxinicola. siparia.

71. Lachnella rufo-olivacea. (A. and S.) Cups scattered, sessile, firm, hemispherical, then externally villose-pulverulent, dingy ferruginousred; hymenium greenish-olive, at length black; asci cylindraceo-clavate; sporidia 8, globose-elliptic, binucleate, becoming pseudo-septate, 15 x 7μ; paraphyses filiform, septate, thickened at the apices. (Plate VIII. fig. 49.)

Peziza rufo-olivacea-A. and S., "Consp.," 320, t. 11, f. 4; Fries, "Sys. Myco.," ii. p. 99; "Eng. Flo.," v. p. 197; Mart., "Erl.," p. 464; Cooke, "Handbk.," No. 2046. Velutaria rufo-olivacea-Fckl., "Symb. Myco.,” p. 300. Lachnea rufo-olivacea-Gill., “Champ.," p. 85.

Exs.-Rabh., "Fung. Eur.," 1420; Fckl., “F. Rh.,”

1192.

On dead branches of rose and bramble.

Cups to a line broad. Coarse brown granules are found on the exterior amongst the tomentum.

Name-Rufus, reddish-brown, olivaceus, olive-colour. Longmynd and Red Hill, near Shrewsbury! Forres, N.B.! (Rev. Dr. Keith).

72. Lachnella fraxinicola. (B. and Br.)

Cups scattered or gregarious, sessile, at first closed, then opening with an irregular aperture, at length orbicular, slightly depressed; externally pale fawn-colour, furfuraceous; internally brown; hymenium umberbrown; asci cylindraceo-clavate; sporidia 8, broadly elliptic, faintly brown, 10-13 x 7-8μ.

Peziza fraxinicola-B. and Br., "Ann. Nat. Hist.," 1160, t. 4, f. 21; Cooke, "Handbk.," 2011.

On ash-twigs.

Cups about a line broad, plane or slightly concave,

margined, much resembling L. rufo-olivacea (A. and S.); substance firm.

Name Fraxinus, an ash, colo, to inhabit.
Northamptonshire! (Rev. M. J. Berkeley).

B. SPORIDIA OBLONG.

73. Lachnella siparia. (B. and Br.)

Cups erumpent, subsessile, at first globose, then cyathiform; externally furfuraceous, ochraceous; hymenium becoming brownish; asci linear-clavate; sporidia 8, linear-oblong, straight or curved, polari-nucleate, 10—12 × 2—3μ; paraphyses filiform, slender.

Peziza siparia-B. and Br., " Ann. Nat. Hist.," No. 772; Cooke," Handbk.," No. 2079.

On decorticated elm-branches.

October.

Cups 1 to 13 lines broad. "Accompanied by a floccose stratum, which is, however, possibly not constant. Cup at first subglobose, then cyathiform, scarcely stipitate, but fixed by a broad base, with the margin free; externally ochraceous, furfuraceous; hymenium ochraceous, at length brownish; sporidia linear-oblong, 00045 inch long, curved, often with a nucleus at either extremity" (B. and Br.).

Name Siparium, a veil; from the furfuraceous veil.
Elmhurst! (Rev. M. J. Berkeley).

GENUS X.-TAPESIA. Fries.

Cups waxy or subcoriaceous, subsessile, crowded into a crust, or seated on a subtomentose subiculum (Fries, Sys. Myco.," ii. p. 105). (Plate VIII. fig. 50.)

Name-ráns, a carpet; seated on a carpet.

ARRANGEMENT OF THE SPECIES.

A. Cups externally villose or tomentose.

(a) Sporidia fusiform or oblong.

(a) Sporidia simple..

(B) Sporidia septate

species 1-4

5,6

Growing on bark or wood

2

Cups glabrous; hymenium pallid-white, cinereous,

2.

or brownish

Cups subtomentose; hymenium cinereous

(Cups rufous, with a satiny lustre

(Hymenium pale tawny

3. Hymenium bluish-grey, sometimes black Hymenium whitish, when dry yellowish

fusca.
Rosa.
Johnstoni.
rhabdosperma,
cæsia.
eriobasis.

A. CUPS EXTERNALLY VILLOSE OR TOMENTOSE.

(a) Sporidia fusiform or oblong.

(a) Sporidia simple.

1. Tapesia cæsia. (Pers.)

Sessile, becoming plane, villous, whitish; margin obtuse; base seated on a subiculum of long, interwoven, whitish mycelium; hymenium subgelatinous, fuliginous brown or bluish-grey; asci cylindraceo-clavate; sporidia 8, cylindrical or oblong-elliptic, straight or curved, 5—6 × 2μ; paraphyses slenderly filiform.

Peziza Lichenoides-Pers., "Icon. et Desc.," p. 29, t, 7, f. 1. Peziza cæsia-Pers., "Syn. Fung.," p. 657; Myco. Eur.," p. 272; Fries, "Sys. Myco.," ii. p. 108; Nees, "Sys.," f. 272; Dit. and Sturm., "Deut. Flo.," iii. t. 31; "Eng. Flo.," v. p. 199; Cooke, "Handbk.," No. 2068. Tapesia casia-Fckl., "Symb. Myco.," p. 301. Peziza chavetic-Lib., exs. No. 26; Cooke, "Handbk.," No. 2069. Lachnea casia-Gill., "Champ.," p. 92.

Exs.-Libert., "Crypt. Ard.," No. 26; Cooke, "Fung. Brit.," No. 562, ed. ii. 555; Phil., “Elv. Brit.," No. 76. On chips of oak, etc. Autumn.

Cups 300 to 500μ broad. Forming a continuous layer on chips, in damp places. The tapesium becomes yellow on drying. "Crowded; when young concave, then expanded." I have examined original specimens of P. chavetia in Mad. Libert. exs., and find them to correspond exactly with P. cœsia.

Name Caesius, sky-coloured; greyish-blue.

Appin (Captain Carmichael). Holme Lacy and Whitfield, near Hereford! near Shrewsbury! Grantown, N.B.! (Rev. Dr. Keith).

2. Tapesia eriobasis. (Berk.)

Gregarious, but generally distinct; cups orbicular, tomentose, fixed to little, round, snow-white, cottony spots, which are sometimes confluent; when fresh white, when dry the hymenium has a yellowish tinge; asci slightly clavate or obtusely lanceolate; sporidia oblong, 0002 to 00025 inch long (5 to 5'5μ) (Berk.).

Peziza eriobasis-Berk., "Ann. Nat. Hist.," No. 312; Cooke, "Handbk.," No. 2070.

On smooth inner surface of bark.

Differs from P. casia and P. chavetia in its larger cups, pale disc, and several other points. The cups are sometimes extremely thin, crowded, and pressed very close to the matrix, but this is not usually the case (B. and Br.).

Name-ptov, wool, ẞáσıç, a base; from the woolly

carpet.

3. Tapesia mutabilis. (B. and Br.)

Minute, at first presenting little brown villous specks from which the cups burst; cups scattered; externally brown, hemispherical, villous, becoming smooth and dirty-white; asci clavate; sporidia 8, fusiform, biguttulate, endochrome sometimes restricted to either extremity, 13—18 × 2—4u; paraphyses slenderly filiform.

Peziza mutabilis-B. and Br., "Ann. Nat. Hist.," No. 564; Cooke, "Handbk.," No. 2072.

On leaves of Aira caespitosa.