In:
MycoKeys, Pensoft Publishers, Vol. 95 ( 2023-02-08), p. 83-100
Abstract:
Two new species of Astrothelium are described from the Yungas forest in Bolivian Andes. Astrothelium chulumanense is characterised by pseudostromata concolorous with the thallus, perithecia immersed for the most part, with the upper portion elevated above the thallus and covered, except the tops, with orange pigment, apical and fused ostioles, the absence of lichexanthone (but thallus UV+ orange-yellow), clear hamathecium, 8-spored asci and amyloid, large, muriform ascospores with median septa. Astrothelium isidiatum is known only in a sterile state and produces isidia that develop in groups on areoles, but easily break off to reveal a medulla that resembles soralia. Both species, according to the two-locus phylogeny, belong to Astrothelium s.str. The production of isidia is reported from the genus Astrothelium and the family Trypetheliaceae for the first time.
Type of Medium:
Online Resource
ISSN:
1314-4049
,
1314-4057
DOI:
10.3897/mycokeys.95.98986
DOI:
10.3897/mycokeys.95.98986.figure1
DOI:
10.3897/mycokeys.95.98986.figure2
DOI:
10.3897/mycokeys.95.98986.figure3
Language:
Unknown
Publisher:
Pensoft Publishers
Publication Date:
2023
detail.hit.zdb_id:
2630648-7
