DICHOTOMOUS KEY FOR THE KNOWN LEIOTHECIUM SAMSON & MOUCH. SPECIES

1. Ascospores reticulate, without prominent crests ............... L. dictyophorum S.M.Romero & Comerio, sp. nov.

1’. Ascospore wall reticulated, with prominent crests ........................................................................................ 2

2. Ascospores presenting several crests .......................................................... L. ellipsoideum Samson & Mouch.

2’. Ascospores with only two crests .......................................................... L. cristatum Y.Marín, Stchigel & Cano