Volume 12, 1879
– 376 –

43. Platygrapha macrospora, Kn.
Thallus ochroleucus granulosus tenuis indeterminatus. Apothecia atra innata (diam. 0·7 mm.) plana difformia a thallo granuloso prætecta immarginata; hymenium coloratum hypothecio crasso fusco-nigro enatum; excipulum nullum; paraphyses adglutinatæ subgrumosæ. Sporæ aciculares rectæ circiter 18-septatæ incolores, longit. ·065, crassit. ·0025 mm.
Ad cortices arborum.
Lecidea interponens, Nyl. in litt.

