Observation 88558: Stereocaulon saxatile H. Magn.
When: 2009-08-06
No herbarium specimen

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Thanks, Chris
By: Andrew Khitsun (Andrew)
2012-03-04 18:29:52 PST (-0800)

As far as I remember, my tentative ID was based just on the fact it grew on rocks – I didn’t examine micro features, let alone taken a sample at that time.

Stereocaulon of WI
By: Chris Parrish (kitparrish)
2012-03-04 11:57:31 PST (-0800)

Andrew, here are some notes to go with your checklist.

Key (after Thompson, 2003, pp.221-222):

1a. Primary thallus persisting, pseudopodetia growing between primary squamules, on sand and earth; collected once in WI in 1894, and now thought to be extinct in WI … Stereocaulon condensatum
1b. Only pseudopodetia, primary thallus disappearing … 2

2a. On rocks; little or no tomentum; cephalodia rare, inconspicuous … Stereocaulon saxatile
2b. On sand, earth, clay or dirt over rocks; tomentum well developed; abundant cephalodia … 3

3. Stereocaulon paschale and Stereocaulon tomentosum

References:
CNALH Stereocaulon condensatum page
CNALH Stereocaulon paschale page
CNALH Stereocaulon saxatile page
CNALH Stereocaulon tomentosum page

Sharnoff’s Stereocaulon paschale gallery
Sharnoff’s Stereocaulon saxatile gallery
Sharnoff’s Stereocaulon tomentosum gallery

Just a guess.
By: Andrew Khitsun (Andrew)
2012-03-04 09:14:25 PST (-0800)

The other three species of the same genus found in WI are:
Stereocaulon condensatum
Stereocaulon paschale
Stereocaulon tomentosum

Created: 2012-03-04 09:10:19 PST (-0800)
Last modified: 2012-03-04 09:12:09 PST (-0800)
Viewed: 51 times, last viewed: 2016-10-26 23:20:36 PDT (-0700)
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