,, _lucida_—Pentreshanel, and other places. ,, _erythrella_—Llanforda. ,, _cœruleo_—_nigricans_—Moelydd. _Lecanora rubra_—Craig-y-Rhu (very scarce). ,, _hæmatomma_—Craigforda. ,, _crassa_—Moelydd and Craig-y-Rhu. ,, _candicans_—Pentregaer. ,, _repanda_—Pentregaer. _Parmelia glomulifera_—Upon a single tree in Llanforda (2nd Park). ,, _Borreri_—Upon oak trees opposite to the house at Woodhill. ,, _conspersa_—Craigforda. ,, _pityrea_—Upon a decayed oak near Old Port; and upon trees opposite to the house at Trafalgar. ,, _aquila_—Mynydd-y-myfyr, upon a single isolated piece of rock on the south end of the hill. This is a very unusual habitat for this plant, which is usually a marine lichen. ,, _cæsia_—In fruit; but rarely at Pentregaer and other places. _Sticta pulmonaria_—Pentregaer. _Collema fragrans_—Llanforda and Pentregaer. ,, _ceranoides_—Llanforda and Pentregaer. ,, _multipartitum_—Moelydd. ,, _marginale_—Pentregaer. ,, _tunœforme_—Pentregaer. ,, _dermatinum_—Pentregaer. ,, _muscicola_—Pentreshanel. _Peltidea scutata_—In fruit upon ash trees at Pentregaer. _Peltidea aphthosa_—Craigforda; at the bottom of the wood a little above the brook (scarce). ,, _spuria_—Upon a hedge bank, near Aston. _Gyrophora polyphylla_—Mynydd-y-myfyr (scarce). _Borrera furfuracea_—Mynydd-y-myfyr. _Cenomyce cæspititia_—Craigforda. _Cornicularia aculeata_—Craigforda. CHARACCÆ. _Chara hispida_—Ditches above Morda Pool. ALGÆ. _Ulva calophylla_—Walls of Oswestry church; east end and lower part of the wall in the great walk; but not found every year. ,, _crispa_—Oswestry church-yard; and other places about the town. _Lemania fluviatilis_—In the Morda. _Zygnema nitidum_—In the lane by the cottage at Porkington. _Batrachospermum moniliforme_—In the well at Pen-y-lan; and in other places near the Morda. _Draparnaldia plumosa_—In the Morda, below Penylan bridge. _Meloseira varians_—In the Morda, below Craigforda, and below Penylan bridge. _Fragilaria hyemalis_—In the Morda, below Craigforda. _Diatoma vulgare_—In the Morda. ,, _flocculosum_—In the pool, in the wood, at Llanforda. _Meridion circulare_—In the well at Penylan; and in a ditch near the Morda, above Morda pool. _Cymbella minor_—Penylan mill. FUNGI.