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Abstract
Four new resinicolous species of Chaenothecopsis are described from China: Chaenothecopsis perforata from exudate of Rhus chinensis (Anacardiaceae), C. pallida from exudate of Ailanthus altissima (Simaroubaceae), C. resinophila from exudate of Kalopanax septemlobus (Araliaceae) and C. hunanensis from resin of Pinus massoniana (Pinaceae). All the new species are compared with previously described resinicolous mycocalicioid taxa, and several new features in these species are presented. The newly described species cannot always be distinguished by any single character, but they all possess unique combinations of morphological, chemical and ecological features. Several aspects in the ecology and evolution of boreal and tropical resinicolous species are briefly discussed.
Acknowledgments
The field work in Hunan province was conducted in cooperation with the Forestry Department of Hunan Province, its Forest Botanical Garden, the Department of Biosciences (formerly Department of Ecology and Systematics) and the Botanical Museum, University of Helsinki. We thank Timo Koponen whose Academy of Finland project (No. 44475) made the field work possible. Hanna Tuovila’s research was supported by grants from the Jenny and Antti Wihuri Foundation, Ella and Georg Ehrnrooth Foundation and Oskar Öflund Foundation.