On the type of Coprinus phaeosporus
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Original description
Coprinus phaeosporus P.Karst. in Meddn Soc. Fl. Fauna fenn. 6: 9. 1881 (Symbolae ad mycologiam Fennicam. VIII). Holotype: Finland: Tavastia, Tammela, Mustiala, 5 Aug. 1880, P. Karsten 1602 (H).

Coprinus phaeosporus Karst. (n. sp.). Pileus tenerrimus, conoideo-cylindraceus, repandus, saepe obliqvus, demum explanatus et revolutus, fissus, fere totus striatulus, velo flocculoso, rufescente, primitus contiguo, dein in sqvamulas superficiales areolatim rupto tectus, mox nudus, candidus, demum pallescens, disco minuto, laevi, piano, circiter 2 cm. altus, demum 1,5-3 cm. latus. Stipes fistulosus, primitus basi subincrassatus, aeqvalis, Candidas, nudus, glaber, 3-12 cm. longus, 2 mm. crassus. Lamellae attingentes lineares, albae, demum brunneo-nigrae. Sporae brunneae, sub micr. bruuneae impellucidaeqve, ellipsoideae, loiigit. 9-15 mmm., crassit. 5-9 mmm.

In terra hortorum nec DOU graminibus putrescentibus in Mustiala, m. ineunte Augusto 1880, raro obvius. Densissime caespitosus. Margo pilei subinde hinc inde cinereo-violascens.

Observations:
Spores [20,1,1] 5.6-7.3 x 4.9-6.7 x 4.4-6.1 µm, rather dark red-brown, shortly ovoid or subglobose, rather lentiform; Q= 1.00-1.20, av. Q= 1.10; av. L= 6.5, av. B= 5.9, av. W= 5.3 µm. Germ pore central to rather eccentric, c. 1.3 µm in diameter. Basidia c. 22 x 8 µm, 4-spored. Pleurocystidia 50-90 x 13-24 µm. Cheilocystidia 50-90 x 15-22 µm. Veil thick-walled, 2-7(-12) µm wide, walls up to 1.5 µm and very pale yellowish. Clamp-connections present.

Notes: Karsten described Coprinus phaeosporus as a new species first in 1881 and again in 1882 (this time not in Latin). In 1881 August was given as the month of collecting, the substrate as soil but also decaying grasses ('terra hortorum nec non graminibus putrescentibus'). In the second publication Karsten (1882: 236) noted the species on decaying grasses in the months of July and August. Probably material was collected over a few weeks. We are not sure whether the holotype represents the first or the second of these collections.

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