Observation 20759: Leptogium cyanescens (Rabenh.) Körber
When: 2009-03-18
Herbarium specimen reported

Notes: Location: 35°12’59.44"N, 85°54’30.99"W, el. 444 m, Shake Rag Hollow.

Substrate and habitat: Growing with a thin layer of mosses on the surface
of an exposed sandstone rock, in oak and tulip-poplar cove forest at the top
of a canyon on the western rim of the Cumberland Plateau.

Chemistry: The cortex gives a decided K+ yellow reaction

Identification: Distinguishing Collema from Leptogium can be a challenge. Gary suggests that Collema is typically greenish black, Leptogium is dark bluish.

References:
Sharnoff’s Leptogium cyanescens gallery
CNALH images and locality map, and a larger, interactive locality map.

Voucher specimen: Tennessee, Franklin County, Sewanee, Shake Rag Hollow, 18 Mar 2009, Chris Parrish 0021, det. Gary Perlmutter (NCU)

Common name: blue jellyskin

Species Lists

Images

42553
Shake Rag Hollow, 2009_03_18
42554
Shake Rag Hollow, 2009_03_18
42555
Shake Rag Hollow, 2009_03_18
42556
Shake Rag Hollow, 2009_03_18
42559
thallus, 10x
42560
thallus, 10x
42561
thallus, 10x
42562
interior surface, 40x
42563
isidia, 50x
42564
isidia, 50x
42565
crowded isidia, 63x
42566
marginal isidia, 63x
42567
marginal and laminar isidia, 50x
42568
lobe margin, 63x

Proposed Names

56% (1)
Eye3 Eyes3
Recognized by sight: Specimens were identified by Gary Perlmutter at the UNC Herbarium

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
No one has commented yet.

Created: 2009-04-30 18:16:23 CDT (-0400)
Last modified: 2009-04-30 18:16:23 CDT (-0400)
Viewed: 241 times, last viewed: 2016-10-27 08:19:30 CDT (-0400)
Show Log