Pyrenomycetee, Splircriacefie, Hv.ilodidjmaB, Hercospora. 497 



natis ac illftm pimctis uigris niauulaiitibus, ostiolo vix papiilato 

 donatis; ascis fuaoideo-subciavulatis, antice subtruncatis, 50-55 * 

 7-8, aparaphysatis, ootosporis; sporidiis eiliptico-biconicis, utrinqup 

 obtusis, 12-13 ^ 3-5, l-septatis, ad septum valide constrictis, hyu- 

 rmis, locuHs gros.se biguttulatis, s?epe medio coarctatulis. 



Hab. ad ramulos emortuos putrescentes Colletiop ferocis 

 in silvula Las Talas pr. La Plata Argentinas. — Cum T). Colletire 

 Speg. non comparauda. 

 6. Diaporthe (T.) poiygonicoia Speg. Fg. Arg. novi v. crit. p. 273 i"^? 

 (1899). — Stromate nullo v. vix manifesto, latissime obsolefceque 

 matricem nigiificant».; peritheciis subepidermicis, sparsis v. sabpius 

 laxe gregariis, parvulis, 180-200 p.. crassis, e lenticulari globosis, 

 tenui-membranaoeis, ostiolo rigidulo subcarbonaoeo plus minusve 

 longiuscule exserto erecto v. curvulo donatis; ascis fusoideis, 50 i# 8, 

 octosporis; sporidiis elliptico-cylindraceis, rectis v. leniter curvulis, 

 utrinque acutiuscule rotundatis, 14-15 ^* S'/^, medio 1-septato-con- 

 ^trictis, loculis sub.Tpquilongis biguttulatis. 



Hab. in caulibus putrescentibus Polygoni bonariensis in 

 paludosis, Ensenada pr. La Plata Argentinae. 

 L7. Olaporthe (T.) Patagonuiae F. Tassi, Bull. Lab. Ort. Bot. Siena n^s 

 1900, p. 119. — Stromate ramos late ambiente, sub epidermide 

 immutata excurreute, linea tenui nigra plus minusve flexuosa 

 limitato; peritheciis sparsis gregariisve, in cortice nidulantihus, 

 globulosis, ostiolis brevibus cylindraceo-conoideis epidermidem ele- 

 vfltam vix perforantibus, atris, 200-250 u.. diam., nucleo cinereo; 

 ascis oblongis v. subcylindricis, apice raembrana incrassatula 2- 

 foveolata instructis, basi atteuuatis, aparaphysatis, 8-sporis, 60- 

 70 «8-10; sporidiis distichis, oblougo-ellipsoideis, rectis v. leniter 

 curvulis, bicellularibus, medio plerumque constrictulis, 4-guttuIatis, 

 hyalinis, 12-14 « 4-4'/,. 



Hab. in ramis emortuis Patagonnlse americanre in horto 

 botan. Seneusi Italiae. — Spermogonium Phomam Pataijonidas F. 

 Tassi sistit: peritheciis sparsis, globnlosis, nigris, tectis vel raro 

 suberumpcutibus, 100-120 ft. diam.; sportilis oblongis, 2-guttula- 

 tis, hyalinis, 7-8 v 2-3, basidiis crassioribus dup1o longioribus fultis. 



HERCOSPORA Tul. -~ Syll. I, p. 605, IX p. 702. 



1. Hercospora Kornhuberii Bauml, Ann. Naturhist. Hofmus Wien 1799 

 1809, p. 440, tab. XVI, fig. 1. — Stromate cortice immerao, '/,- 

 1'/, cm. longo, 3-10 mm. lato, 2-4 mm crasso, hypoxyloideo, ni- 



.13 



