In:
MycoKeys, Pensoft Publishers, Vol. 60 ( 2019-11-29), p. 93-123
Abstract:
The Leptographium olivacea complex encompasses species in the broadly defined genus Leptographium (Ophiostomatales, Ascomycota) that are generally characterized by synnematous conidiophores. Most species of the complex are associates of conifer-infesting bark beetles in Europe and North America. The aims of this study were to reconsider the delineation of known species, and to confirm the identity of several additional isolates resembling L. olivacea that have emerged from recent surveys in China, Finland, Poland, Russia, and Spain. Phylogenetic analyses of sequence data for five loci (ACT, TUB, CAL, ITS2-LSU, and TEF-1α) distinguished 14 species within the complex. These included eight known species ( L. cucullatum , L. davidsonii , L. erubescens , L. francke-grosmanniae , L. olivaceum , L. olivaceapini , L. sagmatosporum , and L. vescum ) and six new species (herein described as L. breviuscapum , L. conplurium , L. pseudoalbum , L. rhizoidum , L. sylvestris , and L. xiningense ). New combinations are provided for L. cucullatum , L. davidsonii , L. erubescens , L. olivaceum , L. olivaceapini , L. sagmatosporum and L. vescum . New Typifications: Lectotypes are designated for L. olivaceum , L. erubescens and L. sagmatosporum . Epitypes were designated for L. olivaceapini and L. sagmatosporum . In addition to phylogenetic separation, the synnematous asexual states and ascomata with almost cylindrical necks and prominent ostiolar hyphae, distinguish the L. olivaceum complex from others in Leptographium .
Type of Medium:
Online Resource
ISSN:
1314-4049
,
1314-4057
DOI:
10.3897/mycokeys.60.39069
DOI:
10.3897/mycokeys.60.39069.figure1
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10.3897/mycokeys.60.39069.figure2
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10.3897/mycokeys.60.39069.figure3
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10.3897/mycokeys.60.39069.figure7
DOI:
10.3897/mycokeys.60.39069.figure8
DOI:
10.3897/mycokeys.60.39069.suppl1
DOI:
10.3897/mycokeys.60.39069.suppl2
Language:
Unknown
Publisher:
Pensoft Publishers
Publication Date:
2019
detail.hit.zdb_id:
2630648-7
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