Thecaphora mexicana Ellis & Everh. ex G. P. Clinton 1902

Thecaphora mexicana Ellis & Ev.; Clinton, Jour. Myc. 8 : 146. 1902
Sori on stems, prominent, forming clustered subglobose pustules each about 4 mm. in diameter, firm, upon rupture scattering dusty umber spore-mass and leaving behind the remains of the hollowed pustules ; spore-balls light reddish-yellow, ovoid to spherical, composed of 15-30 spores separated by prominent hyaline areas that apparently widen with maturity, 50-90 (I in length ; spores angular when young but with age becoming more rounded, irregular, oblong to polyhedral or subspherical , with distinct inner and outer coats, the latter thick and provided with prominent irregular papillae, chiefly 16-22 fi, the most elongate rarely 25 fi, in length.
On Cardttaceae :
Guardiola platyphylla, Mexico. Type locality: Mexico, on Guardiola plaiyphylla. Distribution : Known only from the type locality.