326 BULLETIN DE L'HERBIER B0ISSIER. (14) 



rara) V* mm. lata et minora, laete fulva, hemisphaerica, adpresso- 

 sessilia; sporae 8-nae, 18-25 ^ longae, 4-5 V 2 ^ latse, lusiformes, 4-locu- 

 lares. — Species pulchella, colore et minutie apotheciorum insignita. — 

 Ad saxa maritima in Tkursday-Island, Quecnslandiae septentrionalis, 

 ubi legit Hartmann : Ch. Knight n. 265, 275 pr. p. 



46. Porina (s. Euporina) platystoma Müll. Arg.; thallus e 

 flavescenti-olivaceo demum fuscescens, crassiusculus, jugoso-et gleboso- 

 inaequalis v. grosse verrucoso-inaequalis, continuus, demum disruptus, 

 superficie hevis; apothecia 3/4-1 mm. lata, hemisphaerica, apice late 

 nigrato-truncata, crasse thallino-corticata, ambitu regularia et laevia; 

 ostiolum nigrum, demum 1/2 mm. latum, horizontaliter dilatatum; 

 perithecium globosum, fulvum et sat tenue ; paraphyses tenuiter capil- 

 lares; sporae 8-nae, halone non computato circ. 37 \x longae et 5 jx latae, 

 fusiformes, 8-loculares. — PropeP. cifricanamMüW. Arg. locanda,valde 

 distincta apotheciis validis late dilatato-ostiolatis, ostiolo hinc inde 

 radiatim sublacero, parte nigra diametrum perithecii subaequante. — 

 Corticola, Victoria: Knight n. 332. 



47. Porina (s. Euporina) pallida Müll. Arg.; thallus pallido- 

 virens, tenuissimus, subtiliter rimulosus, caste rum laevis, demum evanes- 

 cens ; apothecia V2-V3 mm. lata, fiavescenti — v. subfulvescenti-albida, 

 hemisphaerica, e regulari demum obsolete gibbosa, ad ostiolum iülvum 

 v. rufescenti-fulvum leviter impressa; sporae 8-nae, nondum omnino 

 evolutae 37-40 [x longae et 10 ^ latae, valide fusiformes, 8-loculares. — 

 Valde affinis P nuculze Ach., quae est corticola, sed thallus alius et 

 apothecia sicca et madefacta magis albicantia. — Ad saxa maritima in 

 Thursday-Island, Queenslandiae sept. : Ch. Knight n. 275 pr. p. 



48. Microthelia stictaria Müll. Arg.; apothecia in thallo alieno 

 foliaceo parasitantia, evoluta basi 2/10 mm. lata v. paullo minora, regu- 

 lariter hemisphaerica, nigra et opaca; perithecium dimidiatum, basi nee 

 inflexum nee patens, crassiusculum ; asci 8-spori, superne angustati 

 ibique paehydermei ; sporae irregulariter 2-seriales, fuseidulae, elongato- 

 obovoideae, subaequaliter 2-loculares, 10-11 \l longae et 4-4 V 2 ^ latae. — 

 Ad seriem specierum, quam Tichothecium varii auetores nuneupant, 

 referenda est. — In thallo Stictinse crocatx f. esorediatse Müll. Arg., 

 Snowy Creek ad Owens River, in prov. Victoria : Mrs. M. Cann. 



49. Pyrenula conspurcata Müll. Arg. ; thallus obscure cinereus, 

 tenuissimus, obsolete ruguloso-v. subgranoso-inaequalis ; apothecia fere 

 omnino emersa, sed tota v. fere tota altitudine strato thallino conspur- 

 cato-duplicata, cum strato l / a mm - lata, hemisphaerica, apice nonnihil 



