Hypoereaceae, Dictyospor», Thyronectria. 5^1 



adsunt stylosporce, 17-18 u. longse; conidia Stilbi, 5 u. longa; co- 

 nidia alia curvula fusiformia, 8 u. long. — Sic sprciem describit cl 

 Spegazzini 1. c. : Stroma lateritium late sub cortice immutato, vi> 

 densiuscule reticulatim rimoso, excurrens ; perithecia solitarie v. 

 gregarie e rimulis erumpentia, sessilia v. minute peduncuiata, pe- 

 dunculis nonnullis non perithecigeris, elongatis, conidiiferis (cfr. 

 Siilbum cinnabarinum Mont.). imrnixta, sicca collabascenti-cupu- 

 lata, rugulosa, rubro-lateritia, uda globosa, 350 tx. diam., intense 

 fulvo-sanguinea, levissima, glaberrima, ostiolo papillulato, conco- 

 lore vix manifesto, saepius in seuectute irregulariter deciduo or- 

 nata, carnosulo-membranacea, contextu indistincte parenchymatico, 

 lateritio-coccineo; asci crasse-clavati, sursum late et obtuse ro- 

 tundati, deorsum nodulose, breviter crasseque stipitati, 70-75 s 25, 

 octospori, aparaphysati ; sporidia disticha, elliptica, utrinque obtusa, 

 2.5-30 »9-11, primo medio tantum 1-septata, dein 5-7-septata, 

 ad septum medium tantum constricta, septi alteris longitudina- 

 libus clathrato-muriformia, locellis cribrose guttulatis, semper hya- 

 lina. — Species pulcherrima, et ut videtur laie per orbem dispersa ' 

 2. Megalonectria nigrescens (Kalch. et C.) Sacc. Spfuerosiilbe nigre- 

 tcens Kalch. et C. Grev. IX, pag. 15, t. 136, f. 24. — Perithe- 

 ciis caispitosis, erumpentibus, coccineo-rubris, derauin nigrescenti- 

 bus, globoso-depressis; ascis clavato-cylindraceis ; sporidiis elipsoi- 

 deis, transverse et longitrorsum tnultiseptatis, 30-40 s 12-15, hya- 

 iinis; Couidiophoris stilbiformibus, clavatis v. subrotundis, pallidis, 

 stipite obscuriore; conidiis ellipsoideis, hyalinis. 6-3. 



llab. in corticibus in Nova Zelandia (F. Kibk). — Aftinis M. 

 pseudotrichicc, sed perithecia.caDspitosa et dein nigricantia. 



THYRONECTRIA Sacc. in Grevill. IV. 21. et Mich. I, 325. (Etym. 



Tyridium. et Neciria, ob affinitatem). — Stroma valseum vei li- 

 oeare corticale tectum, vix. erumpens. Perithecia monosticha, car- 

 nosula, rosea, extus flavo furfuracea, ostiolis brevissimis. Asci octo- 

 spori, paraphysati. Sporidia oblonga, initio cribrose guttulata dein 

 tenuiter septato -muriformia, hyalina. Spermatia nota. 

 1 Thyronectria patavina Sacc. F. Ven. Ser. IV. 23, et F. it i. 15,;. 

 — Acervulis valsiformibus, sparsis, peridermio hinc inde elev;iio 

 textis, vix erumpentibus ; peritheciis mouostichis, globosis, %-Vs 

 mill. diam., extus flavo- furfuraceis, contextu amcene rubescento. 

 ceraceo-raembrarjaceo, subdiaphano; ostiolis papillatis, brevissimi 



plerumque convergentibus, sed liberis; ascis cylindraceo-clavat is 



3G 



4996 



4991 



