Cantharellaceae of Guyana I: new species, combinations and distribution records of Craterellus and a synopsis of known taxa.
Members of the Cantharellaceae (Cantharellales, Basidiomycota) are common ectomycorrhizal associates of the leguminous genus Dicymbe in the Pakaraima Mountains of Guyana. Eight distinct species or morphospecies currently are recognized in Craterellus Pers. or Cantharellus Adans. ex Fr. from Guyanese Dicymbe-dominated forests. We evaluated the systematics of these taxa with phylogenetic analyses of DNA sequence data from the nuclear ribosomal regions of the internal transcribed spacer (ITS) and 28S large subunit (LSU). The results of these analyses along with careful assessment of morphology let us described two new species, Craterellus atratoides sp. nov. and Craterellus strigosus sp. nov., redescribe Craterellus atratus (Corner) Yomyart et al. based on new material from Guyana, and propose a new combination in Craterellus for Cantharellus pleurotoides T.W. Henkel, Aime & S.L. Mill. Macroscopic illustrations are provided for two additional cantharelloid morphospecies confirmed in Craterellus, as well as the regionally endemic Cantharellus guyanensis Mont. Macromorphological, micromorphological and habitat data are provided for C. atratoides, C. strigosus and C. atratus, and ITS and LSU sequence data are provided for each of the eight known Guyanese taxa.
Chicago Botanic Garden, Plant Conservation Science, Glencoe, IL, USA.
Andrew W
AW
Wilson
M Catherine
MC
Aime
Janina
J
Dierks
Gregory M
GM
Mueller
Terry W
TW
Henkel
D001483:Base Sequence; D001487:Basidiomycota / Q000145:classification* / Q000166:cytology / Q000235:genetics / Q000302:isolation & purification; D004271:DNA, Fungal / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D021903:DNA, Ribosomal Spacer / Q000737:chemistry / Q000235:genetics; D007887:Fabaceae / Q000382:microbiology*; D048690:Fruiting Bodies, Fungal / Q000145:classification / Q000166:cytology* / Q000302:isolation & purification; D006172:Guyana; D008969:Molecular Sequence Data; D038821:Mycorrhizae / Q000145:classification* / Q000166:cytology / Q000235:genetics / Q000302:isolation & purification; D010802:Phylogeny; D017422:Sequence Analysis, DNA; D013172:Spores, Fungal / Q000145:classification / Q000166:cytology / Q000302:isolation & purification; D014329:Tropical Climate
D004271:DNA, Fungal; D004275:DNA, Ribosomal; D021903:DNA, Ribosomal Spacer