Four species of Valsaria are recognized: Valsaria bambusae, V. fulvopr
uinata, V. insitiva, and V. rubricosa. Cultures and anamorph of V. bam
busae are newly described herein. An annotated list is provided for ep
ithets associated with Valsaria and its synonyms --- including Myrmaec
ium, Phaeocreopsis, and Hypoxylonopsis --- and Valsonectria. Endoxylin
a and Pseudothyridaria are resurrected to accommodate some segregates
of Valsaria. A more complete list of synonyms for Pseudovalsaria ferru
ginea is provided. Three segregates of Valsaria are combined with Rous
soella. Eight species of Roussoella are accepted, including two new sp
ecies, R. alveolata and R. intermedia, and three new combinations, R.
chilensis, R. donacicola, and R. pustulans. Keys to the genera discuss
ed and to taxa of Valsaria and Roussoella are provided.