1) Fungus order 2) Order sphaeriales 
An order of ascomycetous fungi which includes many economically important plant parasites as well as saprophytes. ... (12 Dec 1998) ... 
[n] - large order of ascomycetous fungi usually having a dark hard perithecia with definite ostioles
order Sphaeriales noun large order of ascomycetous fungi usually having a dark hard perithecia with definite ostioles; in more recent classifications often divided among several orders