Kw. Hughes et Rh. Petersen, RELATIONSHIPS AMONG OMPHALOTUS SPECIES (PAXILLACEAE) BASED ON RESTRICTION SITES IN THE RIBOSOMAL ITS1-5.8S-ITS2 REGION, Plant systematics and evolution, 211(3-4), 1998, pp. 231-237
Genetic relationships for several species of the fungus Omphalotus wer
e estimated by comparing the presence or absence of restriction sites
in the ITS1-5.8S-ITS2 region of nuclear ribosomal DNA. Results place O
. olearius, O. subilludens and O. olivascens in a single clade. Omphal
otus illudens, usually thought to be related to O. subilludens, was pl
aced in a second clade, more closely related to O. nidiformis. Omphalo
tus mexicana is distinct from all other examined Omphalotus species.