Observation 211925: Craterellus sphaerosporus (Peck) comb. prov.
When: 2015-08-04
Collection location: Casco, Maine, USA [Click for map]

Notes: Growing out of well-decayed, mossy conifer wood near Fagus grandifolia, Carya sp., Pinus strobus and Quercus sect. Lobatae. Young caps brown. Basal mycelium white. Mature specimens with a cap 4.6 cm wide and a total height of 6.2 cm. Immature specimen pictured with a cap 2.6 cm wide and a total height of 5.6 cm.

Images

544062
IMG_8813.JPG
544063
IMG_8814.JPG
544064
IMG_8827.JPG
Young fruiting body?
712492
1313045041476.jpg
Spores in cap segment i 5% KOH under 40x lens.

Proposed Names

46% (2)
Eyes3
Based on microscopic features: spores subglobose
21% (3)
Eye3
Recognized by sight

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
Updated with basidiocarp dimensions.
By: Django Grootmyers (heelsplitter)
2017-02-08 15:41:18 EST (-0500)
I sent the specimens to Patrick Leacock
By: Django Grootmyers (heelsplitter)
2017-02-08 15:11:43 EST (-0500)

I should have done thorough spore measurements before sending but they’re in good hands now.

The one spore that is clearly seen…
By: Dave W (Dave W)
2017-02-08 08:15:53 EST (-0500)

appears to show Q~1.3. This would place this spore on the border between categories “broadly ellipsoid” and “ellipsoid” as defined on the Amanita Studies website. http://www.amanitaceae.org/?How%20To%27s&howto=15
C du Q reports tubaeformis spore dimensions with the lower range of Q~1.33. I think it would be useful to have info for a few more spores, as sometimes a spore doesn’t properly align so that it is perfectly viewable in max length profile.

Now that I look at it again
By: Django Grootmyers (heelsplitter)
2017-02-02 01:25:43 EST (-0500)

the spores do look subglobose rather than elliptical.

Created: 2015-08-04 17:21:54 EDT (-0400)
Last modified: 2017-02-08 15:40:53 EST (-0500)
Viewed: 119 times, last viewed: 2017-02-19 13:41:51 EST (-0500)
Show Log