The genus Biscogniauxia (Xylariaceae) in Guadeloupe and Martinique (French West Indies)
Par Fournier J., Lechat C., Courtecuisse R.

Vol. 9 (3) – 30 avril 2017

doi: 10.25664/art-0202

 Open Access


Résumé (anglais) : 

This survey deals with the Biscogniauxia taxa collected in the French West Indies in the course of an ongoing inventorial work on the mycobiota of these islands initiated in 2003. Based on the evaluation and comparison of their morphological characters, fourteen taxa are described, illustrated and discussed, including four new taxa, viz.: B. breviappendiculata, B. martinicensis, B. nigropapillata and B. sinuosa var. macrospora and a collection of uncertain taxonomic position tentatively regarded as related to B. uniapiculata. The nine known taxa that we recorded include B. capnodes, B. capnodes var. limoniispora, B. capnodes var. theissenii, B. citriformis, B. citriformis var. macrospora, B. grenadensis, B. philippinensis, B. uniapiculata and B. viscosicentra. Only three of the taxa that we report here were already known from the Caribbean, viz.: B. grenadensis, B. uniapiculata and B. cf. uniapiculata, and all are new to the French West Indies, except the latter which was collected in Guadeloupe. A dichotomous identification key and a synoptical table of ascospores are presented as well

This survey of the genus Biscogniauxia Kuntze in the French Caribbean islands of Guadeloupe and Martinique comes after two similar studies carried out on Hypoxylon Bull. and on Annulohypoxylon Y.-M. Ju, J.D. Rogers & H.-M. Hsieh in the same region [...]