Observation 276179: Collemataceae Zenker

When: 2017-05-06

Collection location: Planalto das Cezaredas, Portugal [Click for map]

Who: zaca

No specimen available

A big amount of specimens belonging to the family Collemataceae were found in two field trips in consecutive days; I already identified 8 species in the former genus Collema, two species in the former genus Leptogium, and two specimens (one in each of these genera, I believe) are still pending. Here is a list, where I include the current names for each species though I made no use of them and seeming to be still confuse:

Former genus Collema:
C. auriforme [Lathagrium auriforme]
C. crispum [Blennothallia crispa]
C. cristatum [Lathagrium cristatum]
C. flaccidum
C. fragile [Scytinium fragile]
C. fuscovirens [Lathagrium fuscovirens]
C. latzelii [Lathagrium latzelii]
C. parvum (?) [Scytinium parvum]
C. polycarpon [Enchylium polycarpon]

Former genus Leptogium:
L. plicatle [Scytinium plicatile]
L. schraderi [Scytinium schraderi]

This observation refers to the non identified specimen seeming to belong to the former genus Leprogium, because of the thallus colour, its form and the existence of tomentum on the underside of lobes (the 2nd photo attached highlight the zone where the hairs can be seen). The question is that
the species of Leptogium existing here having tomentose under surface are L. hibernicum and L. saturninum, which usually are corticolous and both have isidia. This specimens seems to lack isidia.


Same photo, where I encircled the zone where the tomentum is best seen.

Proposed Names

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Created: 2017-05-10 15:37:39 EDT (-0400)
Last modified: 2017-05-10 15:37:42 EDT (-0400)
Viewed: 23 times, last viewed: 2019-04-11 13:13:11 EDT (-0400)
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