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Order: Peltigerales Family: Collemataceae
Species: Collema multipartitum Photos: On limestone. The Burren, Co. Clare, Ireland. Thallus loosely attached, rounded or irregular, much branched, deeply lobed. Lobes are narrow, fan-shaped, irregular and +/- contorted. Apothecia frequent, isidia absent. Ascus clavate with strongly thickened apex. Spores 3-septate, 26-43 x 4.5-6.5 µm. Micro photos below. On hard, exposed limestone. Frequent in the Burren, scattered distribution elsewhere in Ireland. Often occurs with C. polycarpon. Chemical reactions negative. |
Microscope photographs
Collema multipartitum. The Burren, Ireland. July 2009