Pyfenornycetesfi, Sphaeriaceae, Dictyosporse, Pleosphseria. 911 



pticis, 3-4-septatis, septis 2 longitudiualibus, pallide olivaceo-bruii- 

 neis, 10 i; 6. 



Hab. in ramis decorticatis, putrescentibus Eucalypti, Saii 

 Francisco in California, 



2. Pieosphseria siivestrls Mouton in Bull. Soc. R. Bot. Belg. 1S86, 3678 

 p. 158. — Pe!'itheciis globosis, 150 u.. diani., coriaceis, atris, cum 

 ostiolo obtuso conflueiitibus, setis concoloribus, 50-60 c; oYg-B, un- 

 dique hirsutis; ascis oblongis vel ovoideo-oblongis, 70 c; 20, octo- 

 sporis, parce paraphysatis ; sporidiis elliptico-oblongis, apicibus ro- 

 tundato-obtusis, plerumque 1-septatis, non constrictis, septulis lou- 

 gitudinalibus uniseriatis, divisis, olivaceo-fuligineis, 17-20-8. 



Hab. in ramis sectis et decorticatis Pini silvestris, Beau- 

 fays in Belgio. — P. piloseUce affiuis a qua peritheciis rainoribus 

 sporidiorumque fabrica distinguitur. 



3. Pieosphaeria pulveracea Mouton in Bull. Soc. Bot. R. Belg. 1886, 3679 

 p. 159. — Peritheciis subglobosis, y^ mm. diam., atris, pilis con- 

 coloribus, rectiusculis, septatis, 70-100^:4-5 vestitis, minute papil- 

 latis; ascis tereti-clavatis, paraphysatis, breve stipitatis, superne 

 rotundatis, octosporis, 95-115- 15-17; sporidiis submouostichis, oo- 

 ovato-oblongis, 5-7-septatis , longitudinaliter subinde incoinplete 

 uniseriato-divisis, ad septum raediura constrictulis, pallide fuligi- 

 neis, 19-22-8,5-9. 



Hab. in ligno secto adhuc duro Quercus, Beaufays in Belgio. 



4. Pteosphaeria patagonica Speg. F. Pat. n. 149. — Perithociis in li- 3(580 

 gno denudato v. cortice libero, adhuc tecto, sparsis v, subseriatira 

 hinc inde pauci-gregariis, globosis v. globoso-depressis, 120-150 a. 

 diam., ostiolo non vel vix papillulato et perspicuo ornatis, atris, 

 submembranaceo-carbonaceis, contextn indistincto, atro-fuligineo, 

 setulis conico-cylindraceis, minutis, 15-50-2-5, atro-fuligineis, 

 opacis, rigidulis laxe vestitis; ascis fusoideo-cylindraceis, surisum 

 subattenuatis crassissimeque tunicatis ac sterilibus, apice truncato- 

 rotundatis, deorsum in stipitem brevissimum crassum nodulosum- 

 qne attenuato-productis, 50-55 c; 12-14 , aparaphysatis, 8-sporis; 

 sporidiis recte v. oblique distichis, elliptico-subfusoideis, utrinque 

 obfusiuscule rotundatis, 3-5-septato-constrictis, loculis 1-3 centrali- 



bus septo altero longitudinali donatis, griseo-furaosis, 10-!^ -6-6,5. 

 Hab. ad ramos dejectos putrescentes Fagi antarcticae in 

 silvis pr. Cabo Negro Patagonia). — Jodi ops nulla; in peritheciis 

 ascigeris adsunt etiam spermatia innumera, minutissima, elliptica v. 

 subnavicularia, 2-2,5 - 0,7-1, utrinque acutiuscule rotuudata, hyalina. 



