Five new Camillea (Xylariales) species described from French Guiana

Botanical Studies

Original Article

Christian Lechat¹  Anne Favel²  Delphine Chaduli²  Huei-Mei Hsieh³  Yu-Ming Ju³  Jacques Fournier⁴ 

[1] 64 route de Chizé, 79360, Villiers-en-Bois, France;INRAE, Aix-Marseille Université, UMR1163, 13288, Marseille, France;Institute of Plant and Microbial Biology, Academia Sinica, 115, Nankang, Taipei, Taiwan;Las Muros, 09420, Rimont, France;

关键词: Ascomycota;    Graphostromataceae;    Neotropics;    Phylogeny;    Saül;    SEM;    Taxonomy;   

DOI  :  10.1186/s40529-023-00397-6

 received in 2023-06-06, accepted in 2023-08-21,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundThe genus Camillea was created in 1849 from collections made in French Guiana with eight species included. Numerous species assigned to Camillea were subsequently discovered, especially in the forests of the Amazon basin, but new discoveries have not been reported from French Guiana since 1849. Recent fieldwork in French Guiana has begun to fill this gap by identifying five new species, most of which were collected in the vicinity of Saül village.ResultsBased on macro- and micromorphological study of their stromata, including SEM images of ascospore wall ornamentation, five new species were recognized, including C. cribellum, C. heterostomoides, C. nitida, C. rogersii and C. saulensis. Cultures could be obtained for C. heterostomoides and C. rogersii, and ITS and LSU sequences were obtained for all of the five new species. Camillea heterostoma and its variety microspora were shown to be conspecific. Provisional molecular phylogenetic analyses support the possible reinstatement of Hypoxylon melanaspis, currently regarded as merely an applanate form of C. leprieurii.ConclusionThe current study is based on a relatively limited fieldwork in its duration and sampling area but was able to substantially increase the number of Camillea species known from French Guiana. This augurs an exceptional and still unknown diversity of the genus in this area and by extension in the adjacent neotropical forests.

【 授权许可】

CC BY   
© The Author(s) 2023

【 图 表 】

12936_2015_1050_Article_IEq030.gif

Fig. 2

Fig. 2

Fig. 2

Fig. 14

Fig. 2