571 



On decorticated dead liiid)? of Machtni (inrantiaca, London, 

 Canada (Deai-ness). 



On acconnt of its elongated stroma and lai'jjc sporidia, this seems 

 (|uite distinct. 



I), pru milieus, Cke. & Hark. (Irev. IX, p. 85. 



Stroinata erumpent, pulvinato, hemisjdiei'ical 2-3 mm. diam. oi' 

 ulilong 2-3x1 mm., closely girt l)y the epidermis which also adheres 

 in IVagnients to the surface, whitish oi' cinereous inside. Perithccia 

 8-15 lying in the bottom of the stioma, al)0Ut \ mm. diam. Ostiola 

 rather large, stellate-cleft. Asci su I (sessile, ji. sj). 35-40 x 6 //. Spo- 

 ridia sul)biseriate, allantoid, slightly curved, yellowish, 6-8 x 2 /^. 



On Arbutus Menzlesii, and Mf'mulus glutinosus, California 

 (Ilarkness). 



Tlie specimen on Mimuhis glutmosus, sent by Harkness, has the 

 stromata smaller (1-2 mm.), less distinctly erumpent and dark inside, 

 and the sporidia largei- (8-10x2 /i), and hardly seems to be the same 

 as that on Avhutxs. Sporidia (sec. Cke.) 12-13x2 ft. 



D. iufi'iscaiis, E. & E. (in Herb.) 



Stromata gregarious, small (1-1 J mm.), conic-hemispherical or 

 tulierculiform, closely covei'ed (except the apex) with the adherent. 

 Iilackened eitidci-mis. Perithecia 3-() in a stroma, glol)ose. thin-walled, 

 \-\ nnn. diam., contracted al)0ve into short necks, witli the? large, 

 tulierculiform ostiola crowded and erumpent together. Asci (p. sp.) 

 25 X 4 /i. with a slender stipe of altout the same length, and (ilifoiin 

 painphyses, 8-spored. Sjnn'idia l)iseriate. allantoid. slightly curved, 

 yellowish-hyaline, 5-0 x 1^-11 n- 



On dead stems of S mil ax, Houston. Texas (Ravenel 242). 



The e])idermis is blackened around the pustules, and where they 

 stand near each other, it is also blackened continuously between them. 

 This is distinct from D. smihicicola (Schw.), on account of its very 

 dill'erent stroma and smaller spoi-idia, and from Diatnjpelhi promi- 

 n('in<, Howe, which outwardly it much resendtles, l)y its 8-spored a.«ci 

 and piominent ostiola. 



D. smilacicola, (Schw.) 



Sp/iteit'a smi'/acicola, Schw. Syii. N. Am. 1351. 



Sul)pulvinate-eiVuscd, seated on the epidermis, surrounded by a 

 kind of sterile, sul»lol»ate margin which adheres to the wood and leaves 

 a l)lack line. Perithecia few, subprominent, Itlack on the surface and 

 lilack or dark l>rown inside. Stroma scanty, ))ulverulent. Tt occur.« 



