Subgenus Phaeoceros

Diagnosis.

Capsule yellowish to yellowish brown at late maturity, valves two, widely spread at dehiscence. Spores papillate. Tubers sessile or shortly stalked.

Included species.

P. carolinianus (Michx.) Prosk., P. engelii Cargill & Fuhrer, P. laevis (L.) Prosk ., P. mohrii (Austin) Hässel, P. parvulus (Schiffn.) J. Haseg., and P. perpusillus Chantanaorr.