92 TRANSACTIONS OF THE 



Pertusaria INTRANIDULANS. 



Thallus albidus tenuis Jsevigatus (K — C — ) : apothecia in 

 verrucis thallinis parvis inclusa, ostiolis nigrescentibus csesio- 

 pruinosis dein explanatis et lecanorinis farinosis : thecse mono- 

 sporae, sporae incolores simplices oblongse, "075 - '09 X '028 mnot., 

 paraphyses distinctse irregulares ranaosse, thecas instar retis inclu- 

 dentes, iodo flaventes. lodo gelatina tliecas ambiens coerulescens 

 (saltern leviter) dein intense fulvescens. 



Ad cortices props "Lake Superior" in Canada, lecta a Cel. J. 

 Richardson. 



Affinis, ut videtur, P. opbthalmizse (Nyl.) 



Pyrenopsis agnascens, Sp. nov. 



Thallus tenuis fuscescens, vix ullus visibilis et tantum apotheciis 

 vicinus : apothecia fusca parva (latit. •! - "2 mm.) convjexa; 

 sporse (4 — 8)nEe incolores oblongse vel fusiformi-oblongse 3-sep- 

 tatse vel 4-loculares, -Oil - '015 x 0035- '00 tS mm.; paraphyses 

 graciles pellucidse parcse irregulares, apicibus incoloribus non-cla- 

 vatis; hypothecium coeruleo-nigrum. Iodo gel. hym. coerulescens 

 dein sordida vel obscurata. Gonimia parva coerulescentia vel rubes- 

 centia, in glomerulis majusculis contenta. 



Ad culmum graminis cujusdam, verisimiliter in Africa occid. 

 meridionali ; ex hb. Cel. T. Chapman. 



Graphis tmpexella. 



Thallus pallide cervinus tenuis nonnihil pulverulentus (K — E — 

 flavo rubens) ; apothecia nigra innata tortuosa et ramosa, conferta 

 apice obtusa, margine thallino prominulo crassiusculo cincta, 

 epithecio concaviusculo vel etiam planiusculo (latit. -1 — -3 mm.); 

 sporse plerumque 4n8e interdum Snse, fuscse oblongse vel ellip- 

 soidese, 4-loculares vel potius 3-septat8e, -009 — -014 x '0035 — 

 •0045 mm.; paraj^hyses parcse distinctse filiformes non clavatse; 

 hypothecium pallidum. Iodo gel. hym. hand tincta. 



Ad ramos arborum vetustos vel emortuos, prope Victoriam in 

 Africa, lecta a Cel. G. Thomson. 



The next nine form part of a collection by Mr. Hugh Paton of 

 this city while on a tour through Australia. 



