By Fournier J., Lechat C., Courtecuisse R.
Vol. 7 (5) – 21 August 2015
Abstract: This survey of the genus Hypoxylon in the French West Indies is based on the material collected during an ongoing mycological inventorial project initiated in 2003, including field trips usually carried out annually, between June and November. Previous records of Hypoxylon from these islands found in literature are analyzed and discussed, and only two species are retained as reliably identified in 1996, viz.: H. musceum and H. ochraceum. The thirty-seven additional taxa collected during these field trips bring up to thirty-nine the number of Hypoxylon taxa known from Guadeloupe and Martinique. These thirty-nine taxa are described, illustrated in colour and their taxonomic status is commented. They include seven taxa recently described as new in 2010, 2012 and 2015, viz.: H. cypraeisporum, H. griseobrunneum, H. isabellinum, H. laminosum, H. lateripigmentum, H. pulicicidum and H. sclerophaeum var. parvisporum and six new species described in this article, viz.: H. arawakianum, H. dussii, H. ochraceoglobosum, H. sepiaceum, H. sofaiense and H. subtrugodes. Seventeen known species are recorded for the first time from Guadeloupe or Martinique, viz.: H. aeruginosum, H. brevisporum, H. erythrostroma, H. fendleri, H. haematostroma, H. hypomiltum, H. investiens, H. lenormandii, H. monticulosum, H. munkii, H. pelliculosum, H. rickii, H. rubellum, H. rugulosporum, H. samuelsii, H. subgilvum and H. tortisporum. Finally seven collections that could not be unequivocally equated to known species are given the following provisional names referring to the most resembling known species viz.: H. cf. cinnabarinum sp1, H. cf. cinnabarinum sp2, H. cf. duranii, H. cf. dieckmannii, H. cf. hypomiltum, H. cf. pilgerianum sp1 and H. cf. pilgerianum sp2. A dichotomous identification key to the Hypoxylon spp. known from the French West Indies is proposed