Persoonia (2010) 25, 94-108

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D. Paciura, Z.W. de Beer, K. Jacobs, X.D. Zhou, H. Ye and M.J. Wingfield (2010)
Eight new Leptographium species associated with tree-infesting bark beetles in China
Persoonia 25, 94-108
Abstract: Leptographium spp. are anamorphs of Grosmannia residing in the order Ophiostomatales. These fungi are typically associated with bark-beetles and are common causal agents of sapstain in lumber and some are important tree pathogens. In this study, Leptographium spp. associated with bark beetles collected during a survey in Jilin and Yunnan provinces of China, were identified. Identifications were achieved using comparisons of morphological characters and DNA sequence data for the ITS2-partial LSU rDNA region, as well as the β-tubulin and EF-1α gene regions. Eight unknown species of Leptographium are recognised and described from conifer and hardwood hosts, associated with beetles including Ips subelongatus, Tomicus yunnanensis, Hylurgops minor, Polygraphus verrucifrons and a Pissodes sp. Six of the new species are morphologically and phylogenetically related to species known to occur in Asia such as G. yunnanense, L. bhutanense, L. bistatum and L. sinoprocerum. The remaining two taxa are related to those in a group containing G. americana and L. abietinum, found in North America. This study also provides the first report of L. pineti on Pinus kesiya in China.
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Database assignments for author(s): Z. Wilhelm de Beer, Michael J. Wingfield, Karin Jacobs

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Ips typographus Spruce (Picea) China (south)
Ips typographus Spruce (Picea) China (NE)
Ips cembrae Larch (Larix) China (NE)
Ips subelongatus Larch (Larix) China (NE)
Leptographium conjunctum Pine (Pinus) China (south)
Leptographium celere Pine (Pinus) China (south)
Leptographium celere Pine (Pinus) China (NE)
Leptographium manifestum Pine (Pinus) China (south)
Leptographium manifestum Larch (Larix) China (NE)
Leptographium gracile Pine (Pinus) China (south)
Leptographium latens Spruce (Picea) China (south)
Leptographium latens Pine (Pinus) China (south)
Leptographium pistaciae Pistachio nut and relatives (Pistacia) China (south)
Leptographium curviconidium Spruce (Picea) China (south)
Leptographium altius Spruce (Picea) China (NE)
Leptographium altius Larch (Larix) China (NE)
Leptographium pineti Pine (Pinus) China (south)
Hylurgops major Pine (Pinus) China (south)
Polygraphus verrucifrons Pine (Pinus) China (south)