I aO JIICROMYCETES ITALIOI 



Ad raimilos deiectos in coUibus laurincnsibus, augusto i838. 



\d vtM-salilos (pioquc si)ectal. 



Riuuuli quibus iimascilur, sislunl vciTiiculas jjarura pi-ominentes, epi- 

 dennidc evcoriata lectas, verlice nigrescentes. Aceniili stromale excepti, 

 convex! , hciuisphaerico-conoidei , oblongivc, depressi, basi millimetrum 

 cum diinidio ut phniimiin lali, epiderinide longiludinaliter vcl oblique, vel 

 iaciiiiatim llssa siibeiuori^fiUes. Stroma sub-papyi"aceum cum cortice con- 

 fluens, saepeque ultra acei-vulos in corlicem elFusum, pyrenia octo, plu- 

 rave basi li2;no insidentia obtegens, cxtus nigrum, intus pallescens. Pyrenia 

 circinnantia, raro sid)scriala, recta vel in ambitu iuclinala, approximata, 

 scd non arcle slipala, pyriformia, tenuia, nigrescentia , fragilia, in sicco 

 coUabcscenlia , corrugata, compressa, varia, vertice in coUum longiuscu- 

 lum producta. CoUa pyi-enionini stromatis corticem perforantia, eiiunpen- 

 tin, parce prominula, apice cylincU-acea , minute perforata, nunc discreta, 

 recta, nmic convergcntia , sed in fasciculum baud collecta. Nucleus gcla- 

 linosus, albidus ascis coacerratis e basi cun'ata clavato-obtusis , materie 

 gnimosa ante sporidiorum maturilalcm farctis compositus. Paraphyses 

 nidlae. Sporidia ascis adhuc excepta vix percipicnda, evacuata oblongo- 

 linearia, utrin<[ue obtusa, hyalina, oscillantia cpiadrilocularia. 



Similis Spliacriae striunellae Friesii ( Syst. mycolog. a. p. 365. et 

 Scleromyc. succ. n. 21 5.) difFerl vero sporidiis, quae in ilia cylindraceo- 

 curvula, apicibus acutata. 



EXPLICATIO ICOMS IV. 



a. Acervuli verticaliler secti decies aucti. 



b. Asci; c. sporidia ad augment. 4*^0 diametr. 

 (I. Sporidia bina ad augment. 700 diametr. 



5. Sphaeiua Orm. 



Ad ramos Orni siccos in coUibus supra Genuam, raro. Marlio 1842. 



Ad sectionem Spliaeriarinn concrescenlium Frtesii referenda. 



Minuta, praebel punctula parum clevata livcscentia vel nigrescentia, per 

 plagas coadunata. Enlopliloeodes. Pyrenia immersa, gi-egaria, approximata 

 vel discreta , stromale nigrescente subcutaneo tandem effuso , corticem non 

 subigenle oblecla, epidermidem pustularum conoidearum instar elevan- 



