35 



4 



1). xylo^'eiuim, K. & K. .Icmn. Myiol. II. |.. 102. 



rcritlie(.'i;i siipcrliciiil. sciittfrcd. (Iciiivssi'd-lieiiiisitlioriciil. r(tti«rli. 

 l(l')-2')0/i (liaiii.. with nii (distMirc, ](ii|)illitoriii ostioliiiii. Asci olitn-jito. 

 coiitniotfd liclow into :i sliort <U\>(\ ;).")-4(t x 20-24 //. witliout jtar- 

 iiiiliyscs. iiinl (Miiitiiiiiin.ii' S oliloim'-fllipticiil. iiiiisciitjitc. uTiunilar. siili- 

 liynlinc. l.')-l().\S /< s|K)riili!i. 



On (l('cayiii,t>' woitd o\' Sah'.r. I.ouisiaiia ( Laiiu'lois). 



PiiVcrs IVoin flic usual tyjic oi' Asfrri/tti and Dinicronpnriiiin in 

 its lialtitat. and ttic alisrncc <tf any definite niyccliiini. 



1). aiKtmrliiiii, (Ckc. iV Hark.) 



.l.^ i-iiiui iiiioiiKi/a, Ckc. ^ Hark. C.ruv. IX. p. S;. 



•■ Kllnscd. l)lark. velvety. IVi'itliecia lieniisplierical or u'luhose- 

 de|iressed. Alyeelinni intricate. Itrriwn. witli ei'cct, i-i«rid. scattere(| 

 .■^eta'. Asci clavatc. Sporidia In.scriate, lanceolate, 1-5-scptate. hya- 

 line, 20-22 x 4 /i. I'erithecia 1^0 « diani.: set;e about twice as lonji." 



On liviiiLi' laurel leaves, Calil'oriiia. 



l>iiii(^i'os|)oriiiin i'opnii. E. & E., mentioiied in Journ. Mycol. V. 

 p. Si. was not i)ulilished on ac-oount ol' the specc. jiroving- uiL'satis- 

 I'actorx. 



ASTERIXA, Lev. 



.\iiii. Sci. Nat. I'^.t.s, III, p. .sy. 



Perithecia t>loliose-de|»i-ess(M| or lenticular, niendtrauaceous. suli- 

 astomous. .<eatod on spots of l)lack, I'adiatinu'. suhsujieriicial (rarely 

 suliinnate) niyceliuni. Asci typically short and thick, mostly 8-spored. 

 Sporidia two-celled, jiluriseptate or continuous, hyaline or i)ro\vii. 



'I'he pei'ithecia vary t'roni an entii'C membranaceous sac to a mere 

 coverinii' of coalesi-ed. radiating' hyjilue. and the mycelium, which 

 ty]iically forms black sjiots. is often liti-ht colored, scant, evaiu'scent or 

 entirely wanting. 'I'he genus thei'ei'oi'c contains some species nearly 

 approaching Spha't'cUa and Microthi/r'nini on the one hand, and 

 Afifoiiii/ccfcfla on the otiier. 



A. Pevitliecki seated on a dlstiiictly developed inyceliuni. 



A. I'libicola. E. & E. (in Herb.) 



Perithecia eitijihyrions. erunijient-superficial, single w 2-3 to- 

 getlK'r, conic-hemispherical, membi'amiceous, 75-100 // diam.. with a 

 distinct ostioluni. Asci oblong, sessile. 3.)-45 x 12-15 n. with obscure 

 ]iara]ihy.<es. Sporidia biseriate. ovate-elli])tical, yellowish-brown, uni- 

 septate, constricted at the septum, rounded at the ends, 12-15x6-8 n. 



On leaves of liiihiis utriejosiis and li. occ/'de/itah's, Canada and 

 Wisconsin. 



