Observation 73193: Coprinellus heptemerus (M. Lange & A.H. Sm.) Vilgalys, Hopple & Jacq. Johnson
When: 2011-07-17
Herbarium specimen reported

Notes: Growing on deer dung
Originally misidentified and posted in MO as Coprinopsis stercorea: we overlooked the pileocystidia that are present in Coprinellus heptemerus, but only on young specimens.
Syn.: Coprinus heptemerus M. Lange & A.H. Sm.
Herbarium Specimen: UBC F25128

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Coprinellus heptemerus f. parvisporus (J. Breitenb. & F. Kränzl.) Ceska & A. Ceska nomen prov.
By: Oluna & Adolf Ceska (aceska@telus.net)
2014-10-27 13:30:43 PDT (-0700)

Oluna’s material belongs to the small-spore form of this species that has been described as Coprinus heptemerus f. parvisporus J. Breitenb. & F. Kränzl., Fungi of Switzerland, 4 Agarics, 2nd part: Entolomataceae, Pluteaceae, Amanitaceae, Agaricaceae, Coprinaceae, Bolbitiaceae, Strophariaceae. (Lucerne) 4: 236 (1995). Never mind, before we publish this new combination, we would like to measure the spores of the type specimen of Coprinus heptemerus M. Lange & A.H. Sm.

Spore size here seems small for C. heptemerus.
By: Ian Gibson (ig@islandnet.com)
2014-10-27 12:29:40 PDT (-0700)

The spore size in the 1953 Lange and Smith description Mycologia 45: 751, available on Cyberliber, gives spore size for C. heptemerus as 10.8-15 × 4.4-7.5 um.

Created: 2011-08-04 17:50:34 PDT (-0700)
Last modified: 2011-09-30 22:39:44 PDT (-0700)
Viewed: 277 times, last viewed: 2017-04-28 17:13:13 PDT (-0700)
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