The Scottish Naturalist. 17 



Lecidea iiisita, sp. nov. — Parasitica supra thallum Peltigerce aph- 

 thosae. Apothecia nigra parva (latit. .2-.3 mm.) convexa 

 immarginata saepius fere sphaerica, intus rnfescentia ; sporae 

 (12-16) nae incolores simplices sphaeroideae, diam. .005-. 0065 

 mm. ; paraphyses distinctae graciles filiformes in gelatina 

 firma involutae apicibus rufis vel fere incoloribus ; hypo- 

 theciiim rufum vel in lamina crassiuscula visum rufo- nigrum, 

 lodo gel. bym. intense ccerulescens dein intense vinose 

 rubens. Affinis (forte nimium) L. geophanae. Apud Craig- 

 na-Lochan. 



Lecidea 7?i7(cosa, sp. nov. — Thallus fulvus gelatinosus vel vix uUus ; 

 apothecia fusca vel fiisco-nigra, planiuscula, convexa aiit fere 

 sphaerica, parva (latit. circ. .25 mm.), intus fuscescentia ve 

 pallide fuscescentia; spor^ 8nae incolores simplices ellip- 

 soideae, .0075-.01 x .004-.0055 mm.j paraphyses conglutinatae 

 indistinctse apicibus incoloribus non clavatis ; hypothecium 

 fuscum. lodo gel. hym. ccerulescens dein sordida. Ad 

 lignum putridum prope Ben Doran. 



Opegrapha 7?iirijica, sp. nov. — Thallus albidus vel albido-cinera- 

 scens crassiusculus, minute rimulosus, interdum fere granu- 

 losus, nonnihil farinaceus (K — C erythrinosus, sed C 

 seorsum — ); apothecia nigra sessilia mediocria (latit. .2-.^ 

 mm.) rotunda vel oblonga, sparsa vel aggregata, epithecio 

 caesio-pruinoso vel nudo, primum concaviusculo et tunc acute 

 marginato, demum piano, saepe (vetustate) convexiusculo et 

 immarginato ; sporae Suae incolores oblongcC vel obtuse 

 fusiformes 3-septatae, .014-.021x.0035-.0045 mm.; para- 

 physes irregulares non discretce saepe discontinuae apicibus 

 nigricantibus clavatis; hypothecium nigrum vel fusco-nigrum 

 crassum. lodo gel. hym. vinose rubens (praecedente coerule- 

 scentia nulla). Saxicola in Insula Cumbrae. 



This puzzling lichen seems rather referable to the Opegraphae 

 than to the Lecideae. 



OEYPTOaAMIO SOCIETY OF SCOTLAND. 



THE Fourth Annual Meeting of the Scottish Cryptogamic 

 Society was held at Edinburgh last October, under the 

 presidency of Professor Balfour, and was successful in every way. 

 Cryptogamic botanists from the other side of the Tweed were 

 well represented ; but from one reason or another, several of the 



B 



