Observation 128140: Cheilymenia theleboloides (Alb. & Schwein.) Boud.
When: 2013-02-09
No herbarium specimen

Notes: This is growing all over the compost pile out in the garden. The larger cups are about 1/4" in diameter.

This works out in the key from F. of S. The Hanlin book mentions Cheilymenia under Scutellinia and the description there is consistent with this observation.

I can’t get a decent photo through the microscope to post with this. I’ll try a few more times. I need one of those devices that holds the camera to the eyepiece.

Images

308188
315665
Shows a seta. Taken at Merritt College microscope lab. Mounted in 5% KOH.
315666
Shows more setae. Slide prepared by Debbie Viess.

Proposed Names

85% (1)
Eye3 Eyes3
Used references: Fungi of Switzerland, Vol. 1, J. Breitenbach, F. Kranzlin
Illustrated Genera of Ascomyctes, Vol. II, R. Hanlin
Based on microscopic features: Spores are elliptical, hyaline, not decorated, about 10 × 18
paraphyses are thin, septate, slightly swollen at the ends
hyaline hairs are septate, and rare, as noted in F. of S. #88
Based on chemical features: ascus in melzers shows no reaction

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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good work, George!
By: Debbie Viess (amanitarita)
2013-03-16 16:24:53 CDT (-0400)

I agree that those sparse, septate, pointy tipped hyaline hairs are a good match for theleboloides; habitat (garden debris plus horse poop) works, too! Thanks for tracking down the bits that didn’t fit our Swiss Asco description: the inclusions at the swollen tips of the paratheses.

Microscope work and Mycologia article
By: George Riner (mycogeo)
2013-03-14 16:14:39 CDT (-0400)

I got 2 good photos of this under the scope, showing the setae. It was also noted that the paraphyses have little granular contents inside the tips. These are not noted in Breitenbach & Kranzlin. However, reading Mycologia vol. 56, 1964, the author (Wm. Denison) states in generic diagnosis that the paraphyses contain granular pigmented material near the tips. The key supplied in the article readily points to this collection being C. theleboloides, based on cup size, hair color, habitat and geography.

Created: 2013-02-09 18:28:19 CST (-0500)
Last modified: 2013-02-09 18:28:22 CST (-0500)
Viewed: 59 times, last viewed: 2016-06-03 17:10:26 CDT (-0400)
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