ACTIDIUM — A DLOGBAPHUM. 31 



a narrow slit along each ray, about \ mm. across, smooth, 

 somewhat carbonaceous, cells of excipulum small, compact, 

 blackish; asci cylindrio-clavate, numerous; spores 8, bi- 

 seriate, hyaline, cylindric-fnsiform, 1 -septate, very slightly 

 constricted at the septum, 12—14 x 2 /< ; paraphyses absent. 



On decorticated wood of pine, yew, &c. 



Gregarious in small gioups, very minute; one or more of 

 the rays of the ascophore are sometimes slightly branched. 



The asci and spores as described above were from a speci- 

 men in Fries' Scler. Suec, n. 63. 



AULOGKAPHUM. Lib. (figs. 45-47, p. 22.) 



Ascophore not perennial, minute, black, linear, simple or 

 branched, innate, epithecium membranaceous, cells minute, 

 forming a compact parenchymatous tissue; dehiscing by a 

 very narrow, longitudinal slit ; asci broadly clavate or ob- 

 ovate, sessile, base not at all or only slightly attenuated, 

 8-spored; spores hyaline, elliptical or slightly clavate, 

 1 -septate ; paraphyses scanty, branched, septate, hyaline, 

 absent in some species. 



Aulographum, Libert, Crypt. Ard., n. 271 ; Renin, Krypt.- 

 Floi a, Hyst., p. 8 ; Sacc, Sy 11., ii. p. 727. 



Hysterium of many old authors. 



Ailograplium, Cke., Hdbk., p. 765. 



Closely allied to Glonium in the 1-septate spores, minute 

 size, habit, &c, but distinguished more especially by the 

 membranaceous ascophore. 



Aulographum. vagum. Desm., Ann. Sci. Nat., ser. ii. 

 vol. xix. p. 362 ; Rehm, Krypt.-Flor., Hyster., p. 8, figs. 1-4, 

 p. 4; Sacc, Syll., vol. ii. n. 55-67. (figs. 45-47, p. 22.) 



Ascophore subinnate, black, sessile, very minute, linear, 

 simple or branched, \-\ mm. long by J mm. broad, membra- 

 naceous, lips somewhat cristate ; asci elliptical, sessile, 

 8-spored, rather thick walled ; spores 2-3-seriate, elongato- 

 clavate, apex rounded, hyaline, smooth, straight or somewhat 

 curved, 1-septate, usually each cell 1-2-guttulate, 9-12 x 

 2*5-3*5 fx; paraphyses scanty, about 2 jjl thick, septate, 

 branched above and thickened at the tips, colourless. 



