Observation 104641: Geastrum saccatum Fr.

When: 2012-08-07

Collection location: Huautla de Jiménez, Oaxaca, Mexico [Click for map]

1650m

Who: Alan Rockefeller (Alan Rockefeller)

Specimen available

Notes:
In a subtropical hardwood forest.

Starts out looking like a brown puffball with a very thick skin and white bag inside.

Spores globose, 4 – 5.5 micrometers, spiky, with nearly 1 micrometer spines.

Capillitial threads 3 – 5 micrometers, most are 4. Light yellow in KOH, occasionally encrusted.

Herbarium specimen is in the Oaxaca 2012 bag.

Images

247651
IMG_2339.JPG
247638
IMG_2324.JPG
247639
IMG_2325.JPG
247640
IMG_2326.JPG
247641
IMG_2328.JPG
underside
278329
IMG_9390.JPG
Spores 1000x
408398
IMG_4834.JPG
Spores 1000x
414269
_MG_1342.jpg
125x SEM
414270
_MG_1343.jpg
2350x SEM
414271
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2000x SEM
414272
_MG_1347.jpg
5000x SEM

Proposed Names

29% (1)
Recognized by sight
6% (2)
Recognized by sight: Thick peridium, beak without lines, brown outside when young
Based on microscopic features: Capillitial threads 3 – 5 micrometers, spores round, spiky
61% (2)
Eye3 Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
Very Nice!
By: christopher hodge (christopher hodge)
2014-04-09 11:14:16 MDT (-0600)

The SEM pictures are great!

Created: 2012-08-10 14:35:30 MDT (-0600)
Last modified: 2014-04-09 04:51:33 MDT (-0600)
Viewed: 102 times, last viewed: 2017-06-13 10:16:55 MDT (-0600)
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