Aspicilia contorta hoffmanniana

Post Reply
Glos lichens
Regular user
Posts: 42
Joined: Sun Jan 27, 2019 5:08 pm

Aspicilia contorta hoffmanniana

Post by Glos lichens » Wed Jul 08, 2020 8:38 pm

Is this OK for Aspicilia contorta hoffmanniana? I've been going round in circles with it - pretty sure it was an Aspicilia because of the large simple globose spores, but put off by the size of the apothecia (some greater than 1mm diam) which are sessile going urceolate when well developed. I know that the statements in the Flora that the asci are 4-spored and the thallus surface is scabrid are misleading.
The Flora also says that hoffmaniana is thinner than A calcarea. This looks chunky to me, much thicker than some of the hoffmaniana I have seen in the past.
Chemistry: Thallus K-, C-, Pd-. Upper part of hymenium green going golden in K.
Substrate: Sunny railway ballast - some sort of clinker which bubbles with lemon juice hence calcareous.
Location: Gloucestershire.

Juliet
Attachments
Margin
Margin
6-spored ascus and paraphyses with moniliform ends. micron scale.
6-spored ascus and paraphyses with moniliform ends. micron scale.
Cut ascocarp showing sessile, undercut shape.
Cut ascocarp showing sessile, undercut shape.
Section of fruit in K.
Section of fruit in K.
mm scale.
mm scale.
Section of fruit in water.
Section of fruit in water.

Post Reply