r)23 



g. iS.sy, III. tal. 



Tlio iiicasurcnu'iits of iisci iiml s]i(tti(li;i iirc lioiii spccc in tlic 

 K.xsirciiti fittMl. Tlic oriuiiiiil diiiiiiiosis iimkcs fju-li nl' the two cells ol 

 tlic spoi'idiii cdiistrii'tiMl in ilic midillc iiiid "i-imclciitc. lnit in only ii 

 I'i'w of tlic s|ioii(liii wiis tlicrc iiny confitiiction except tlie centml one 

 <ii iiny nncici visil»le: in nil ol tlieni, lioMcver. tlicro wns ii distinct 

 lividinc envclojM' and iicn<'i'idly ii sjnnll, snli$ilolios<' iipicuhis nt cncli 

 ciiil. The Iowa s|rt'ciiiiens are in no way distinji'uislialile IVoni tlic 

 Kiudpcan except in lieiiiu' accompanied liy a Mchtucoithnii {M. zoii'i- 

 hi III. K. tV Iv). 



Tlie cliaiacteis aj.nee mi wt'll with 3h'hniconin that we have not 

 lit'sitated to reler the specc. to that ticiins. 



M. iiKMloiiia. Tul. Sel. Caip. Ii, j). 141, tal.. XV. %s. 1-0. 



Kxsicc. I""ckl. K. Rli. 2ociCv— Rtlitii Asc. ,^7<).— Tliuiii. M V. ioTpJ.— KU. ti l-;vrlit. N A. !•' 

 2(1 Str. I.sfq. 



Perilhecia ^^-12 (or in(tre), sniicircinate in the 'dijrhtly Idackened 

 inner hark, jilohose, ahout \ nnn. diani.. their long, couveruinu'. cyliii- 

 <li'ical necks itiercinL' the roundish, diitv irrav disk, with their short, 

 olidisc ostiola only sliuhtly prominent. Asci cylindrical, ohtnse above, 

 attenuated Itehtw, M-spoi'cd, lo()-'2(K) x 12-1 "> //, with aliundant pai- 

 aphyses. Sp(»ridia iireuularly liiseriate, elliptical or elliptic-ol)long. 



ronstricted in the 



•tuse, iniiseptate ai 



die, hyaline (slightly 



Mdwnisli when ii 



latnie). 27-30x11-13 



On (lead lindis ()\ Caxtdiica, Newlield, N. .1. 



The young sti'omata produce an alinndance of conidia, ovate, 

 ohovate. ovatxidanceolate, or pvril'orm. straiuht oi' .slightly curved. 

 dark i.rown, 2-8-septate. 20-()(>x 10-13 //. 



M. thelebola. (Fr.) 



St'lunia Ihclththt. l-r. S. M. II, p. .loS. 



A,i,'/<i()i/>i>ia tli,i,h(ila. Till. Sel. Carp. II, p. 161, lal) .\XI, fig^. i-in 

 MrhiiitoHis, Ihflihiila. Sacc. Syll. 2350, Cke. Syn. 2059. 

 K.vriicc. Tliuni. M. V. .^ri.'.— Vize. Mkr. l-uiigi. i6S. — Sydow, M. March. 1722. 



I'erithecia circinate, f,-^ mm. diam., 4-.') in a stroma Ibriiicd of tlic 

 scarcely altered siilistaiice ol' the liark. and surrounded hy a faint cii- 

 cinnscrilting line. Ostiola dccunilx'iit. convergent, their gloliose, at 

 lirst papilliform. finally umliilicate ostiola erumpent in a suitelliptieal 

 disk, which raises the cpideiniis into pustules soon ruptured at the 

 apex. Asci clavate-cyliiidiical, olituse, 110-130 x 15-1^ //, 8-sj)ored. 

 imraphy.satc. Sporidia l»i,<eriate. cylindrical, slightly curved, septate 

 ill the middle, Imt only slightly or not at all constricted, obtuse, hya- 

 line, with a setaceous, hyaline, deciiluous appendage at each end, 30- 

 b'. X 8-10 n (40-GOx 10-12 //, Winter). 



On dead aldei-.s. New .Jer.sey. New York (Peck). Canada (Macoun), 

 on Ju.nip('i'ii}f V'trgiviami Pennsylvania (Schw.). 



