Recent field work on smut fungi in Cuba yielded one new species
and, among many new records, several poorly known species
which are described and illustrated. The new species, Cintractia cubensis
on Rhynchospora microcephala, is characterized by rather large,
dark, and finely foveolate teliospores which can germinate with basidia
of only two basidial cells. The poorly known C. samanensis
was found on the new host Rhynchospora fascicularis ssp. fascicularis.
Entyloma guaraniticum on Bidens pilosa differs from E. bidentis
on
the same host by thick-walled teliospores embedded in the mesophyll of
leaves deforming them. Spores of E. bidentis are smaller and
do not deform the leaf. Sphacelotheca everhartii on Andropogon
virginicus, S. microspora on Paspalum notatum, and
S. panici-leucophaei on
Trichachne insularis are transferred into Sporisorium.