Dr. W. Ny lander on new British Lichens. 333 



coso-confluentibus), laxe adnatis, hypothallo nigricante ssepius 

 parum visibili; apothecia nigra, plauiuscula, immarginata, 

 demum convexa ssepeque aggregato-confluentia, sat parva 

 (latit. 0'4-0'6 millim. vel aggregata minora), intus concoloria; 

 sporse 8, incolores, oblongae, simplices, long. 0"01 0-0*0 13 

 millim., crass. 00035-0 0045 millim.; hymenium sordide 

 tinctum; epithecium baud obscuratum ; parapbyses mediocres, 

 non bene discretse; hypotheciam fuscum. Gelatina hymenea 

 iodo dilute cserulescens, dein mox vinose fulvescens. 



Supra saxa micaceo-schistosa in Ben Lawers (Admiral 

 Jones) . 



Prope L. melancheimam, Tuck., disponenda videtur, tamen 

 locus non certus, nam spermogonia nondum inventa. 



8. Pyrenopsis lecanopsoides, Nyl. 



CI. Jones in Hibernia prope Kenmare legit Pyrenopsim lecanop- 

 soidem Nyl. (Collema pyrenupsoides, Nyl. Syn. i. p. 103), forma 

 gonimiis paulo minoribus, sporis longit. 0"014-0*020 millim., 

 crass. 0006-0-010 millim. 



Ad saxa calcarea prope mare. 



9. Lecidea interject a ^ Nyl. 



Tballus albidus vel cinerascens, insequalis, sat tenuis, rimoso- 

 diffractus, indeterminatus ; apotbecia nigra, fere mediocria 

 (latit. 0-4-0'9 millim.), plana, marginata, intus obscura; 

 sporse 8, incolores, ellipsoidese, simplices, long. 0'010-0012 

 millim., crass. 0006-0'007 millim.; parapbyses gracilescentes 

 (vel non bene distinctse) ; epithecium subincolor (vel vage 

 leviter lutescenti-fuscescens vel sordidum); hypothecium 

 fviscum. Gelatina hymenea iodo cserulescens, dein vinose 

 rubens. 



Ad lapidcs vel saxa arenacea in Anglia (Rev. T. Salwey). 



Hanc L. interjectam olim perperam habui pro L. sarco^ynoide, 

 Krb., a qua mox differt tballo solutione hypochloritis calcici ery- 

 thrinice tincto ; alioquin in sarcogynoide, Krb. L. Sel. 47, thala- 

 mium nonnibil rubricose-violacee tinctum, sporse minores, &c. 

 Errore indicavi buic thallum adesse erythrinica gaudentem re- 

 actione. Conferenda L. sarcogynopsis (Nyl. Armoric. p. 409) 

 etiam differt thalli reactione tali nulla, paraphysibus discretis 

 crassioribus, epithecio obscurato, hypothecio medio dilutiore,&c. 

 a L. intei'jecta. Adhuc comparari possit L. lapicida var. decli- 

 nata, Nyl. (data in Lechl. PI. Maclov. 56), sed ei thalamium 

 fere duplo humilius et superius cserulescens, epithecium nigri- 

 cans, gelatinse hymenese cserulescentia iodo effecta persistens, 

 &c. (hypothecium strato medio dilutius). In L, interjecta by- 



