Abstract Acremonium sect. Albo-lanosa (Fungi Imperfecti) includes beneficial, endophytic
mycosymbionts of various grasses of the subfamily Pooideae, and also the anamorph of the
grass choke pathogen, Epichloë typhina (Clavicipitaceae, Ascomycotina). These fungi are
seed-disseminated, thus stably maintained for many host generations. To investigate the
possibility of long-term coevolution, isolates of E. typhina and anamorphs were obtained
from eight grass species, sequences of their rRNA gene internal transcribed spacers were …

Acremonium sect. Albo-lanosa (Fungi Imperfecti) includes beneficial, endophytic
mycosymbionts of various grasses of the subfamily Pooideae, and also the anamorph of the
grass choke pathogen, EpichloY typhina (Clavicipitaceae, Ascomycotina). These fungi are
seed-disseminated, thus stably maintained for many host generations. To investigate the
possibility of long-term coevolution, isolates ofE. typhina and anamorphs were obtained from
eight grass species, sequences of their rRNA gene internal transcribed spacers were …