Observation 176022: Strobiloscypha cupressina
When: 2014-08-28
31.8834° -109.1787° 1581m
0 Sequences

Notes:
on cones of Juniperus depeanna, riparian area

Proposed Names

7% (2)
Eye3
Recognized by sight
-70% (2)
Recognized by sight
-23% (3)
Recognized by sight
-57% (1)
Recognized by sight
-57% (1)
Recognized by sight
-32% (3)
Recognized by sight
93% (3)
Eyes3
Recognized by sight
Used references: Peric B., LoBuglio K. & Pfister D.H. 2014. The genus Strobiloscypha: a new species and an unresolved phylogenetic placement. Mycol. Monten., 16: 7-22.
Based on microscopic features: Material revised

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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And settled it’s been.
By: Danny Newman (myxomop)
2015-06-14 04:13:17 CDT (-0400)

Thanks, NicoV.

Revision of material
By: Nicolas VAN VOOREN (NicoV)
2015-06-11 14:27:19 CDT (-0400)

I revised the herbarium material kindly sent by Bob. This collection fits well with Strobiloscypha cupressina. Here are some details on microscopic characters: Ascospores 16-18 × 10-11.5 (12) µm, Q=1.5, smooth, not really guttulate but with small polar inclusions. Excipulum two-layered: medullary excipulum of textura intricata, with hyaline hyphae; ectal excipulum of textura angularis, mixed with some elongated cells, thick-walled (up to 1 µm) and partially incrusted by a dark brown pigment (this gives the warted outer surface of apothecia). Hairs present, superficial, light colored, septate, 135-200 × 5-6 µm, with a simple base; some hairs can show colored amorphous matter on their wall.
Strobiloscypha keliae has larger spores (20-23.7 × 12.5-13.5 µm) and they are finely warted (after Weber & Denison, 1995).

Let’s get this settled
By: Bob Chapman (Disciseda)
2015-05-19 20:36:45 CDT (-0400)

Will be in Las Cruces, NM where I keep my collections, in a week or so. Send me your addresses and I’ll send you some of the collection.

Options
By: Nicolas VAN VOOREN (NicoV)
2015-05-19 01:09:51 CDT (-0400)

Thanks Danny.
In this case, the solution is easy to find because there exists a sample. So if Bob is interested in the determination, I can study a part of his collection. Just contact me.

Thank you, Nico
By: Danny Newman (myxomop)
2015-05-18 21:18:21 CDT (-0400)

I see this as a prime example of general, macroscopic aspect/gestalt having little to no bearing on identity. there has been a strong tendency on MO to name ascomycetes on their likeness to a given species (or an image claiming to be of a given species). I am glad to see some of that mess begin to be sorted out by way of your very valuable contributions.

Options
By: Nicolas VAN VOOREN (NicoV)
2015-05-17 17:48:54 CDT (-0400)

this looks like a Strobiloscypha species. I know S. cupressina, a species collected on rotten litter of Cupressus. S. keliae is an American species, but I don’t know it.
Trichophaea flavobrunnea has been collected on Juniperus (and also Cupressus) leaves, but apothecia are more hairy. A simple check of microscopic characters should help to make a choice.

Created: 2014-09-02 13:11:18 CDT (-0400)
Last modified: 2015-06-11 16:06:45 CDT (-0400)
Viewed: 237 times, last viewed: 2017-09-25 10:59:16 CDT (-0400)
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