The two new Ascomycetes (Hypocreales), Valsonectria simpsonii and Hypo
crea cinereoflava, are described. Valsonectria simpsonii produces imme
rsed groups of perithecia with orange ostioles. Its anamorph is an und
escribed species of Stilbella that has whitish, smooth synnemata with
monoverticillate conidiophore branching. Endocreas is a later synonym
of Valsonectria; the only known species of Endocreas, E. lasiacidis, i
s transferred to Valsonectria. The generic concept of Valsonectria is
discussed and a key to its species is provided. Hypocrea cinereoflava
produces effused, grayish yellow stromata with immersed, KOH-peritheci
a. Its anamorph is Stilbella flavipes, which produces white to greenis
h synnemata. A mycelial synanamorph is also produced, which has simila
rities to species of Trichoderma sect. Hypocreanum.