GLONIUM. 33 



Hysterium, of many authors. 



Distinguished by the elongated, narrow, carbonaceous 

 ascophore, and the hyaline, 1- septate spores. In one British 

 species the spores are pale brown. 



Glonium lineare. De Notaris, Giorn. Bot. Ital., ii. 

 p. 594; Sacc., SylL, n. 5588; Eehm, Krypt.-Flora, Hyst., 

 p. 10. 



Sometimes scattered, but usually densely gregarious, and 

 parallel, forming black patches, semi-immersed, linear, 

 .straight or curved, ends obtuse, opaque black, lips very 

 slightly tumid, s-lit narrow, 26 mm. long, 4 ^ mm. broad, 

 carbonaceous ; asci cylindric-clavate, apex rounded, 8-spored ; 

 spores irregularly uniseriate, broadly elliptical, 1-septate, 

 the apical cell broader than the basal one, smooth, hyaline, 

 1214 p. long, upper cell 7-8 Abroad; paraphyses filiform, 

 septate, branched and coloured above. 



Hysterium lineare, Fries, Vet. Akad. Handl., 1819, p. 92 ; 

 Cke., Hdbk., p. 760. 



Hysterium confluens, Wallr., Fl. Crypt., ii. p. 440. 



On naked wood of various kinds. 



Usually densely crowded and staining the wood black, 

 only very slightly prominent. Often very long ; Eehm says 

 3-20 mm. long. 



Specimen in Fries' Scler. Suec., n. 90, examined. 



Glonium amplum. Duby, Hyst., p. 37 ; Rehm, Krypt.- 

 Flora, Hyst., p. 12 ; Sacc., SylL, ii. n. 5609. 



Generally densely crowded and forming black patches, 

 seated on a subiculum of brown, septate, branched hyphae, 

 3-4 p. thick; ascophore blackish-brown, nearly circular, 

 slightly depressed, sometimes slightly curved or with a ten- 

 dency to branch, slit very narrow, up to 1*5 mm. long, ends 

 rounded ; asci clavate, wall thick upwards, 8-spored ; spores 

 irregularly 2-seriate, fusiform, 1-septate, slightly constricted 

 at the septum, clear pale brown at maturity, each cell usually 

 1-guttulate; paraphyses slender, branched above. 



Aulograplmm amplum, B. & Br., n. 782, in Ann. Nat. Hist., 

 vol. xiii. 



Hysterium amplum, Cke., Hdbk., p. 760. 



On dead bramble stems. 



Type specimens examined. 



VOL. IV. D 



