Observation 21349: Dasyscyphus Nees ex Gray
When: 2009-05-26
Herbarium specimen reported

Notes: These are abundant on last-year’s Rubus parviflora canes throughout our birch forests.

Species Lists

Images

44601
44600
44602
Paraphyses in water at 1000×.
44603
Spores in ascus in water at 1000×.
44607
Spore in water at 1000×.

Proposed Names

87% (1)
Eye3 Eyes3
Based on microscopic features: lanceolate protruding paraphyses, ornamented hairs

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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That I wonder too
By: Gerhard Koller (Gerhard)
2009-05-28 15:01:14 CDT (-0400)

if there is any mycologist who is working with Dasyscyphus in America at all …
no one is known to me!

These make up for size in numbers!
By: Jason Hollinger (jason)
2009-05-28 13:34:48 CDT (-0400)

And I confess I was specifically looking for them. There are often a number of minute cup-fungi on leaves, twigs and last-year’s stems of various herbs this time of year during light rains. (They shrivel up to nothing when they dry out.)

You’re right, Gerhard, D. mollissimus does look like a pretty good match. (D. sulfureus has much longer spores, mine are only 12 µm long.) But the diagram in Fungi of Switzerland doesn’t show the conspicuous golden oil drops on the paraphyses. Also it claims the substrate is “dead stems of Apiaceae and other herbs” — would last year’s Rubus parviflora canes be considered an herb for these purposes? I wonder who’s doing work on these sorts of things in North America? I actually have access to literature where I am currently.

paraphyses
By: Gerhard Koller (Gerhard)
2009-05-27 16:16:24 CDT (-0400)

and spores as well as hairs point to Dasyscyphus sulphureus or Dasyscyphus mollissimus but we speak of American mushrooms here:)

geez, how did you even SEE these things? each less than a mm in radius…
By: Debbie Viess (amanitarita)
2009-05-27 15:51:26 CDT (-0400)

Created: 2009-05-27 14:34:25 CDT (-0400)
Last modified: 2009-05-27 14:34:25 CDT (-0400)
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