Carlos A. Inácio

A new genus of Parmulariaceae from Panama

During a survey of plant-parasitic microfungi in Panama, a new species in a new genus of Parmulariaceae (Ascomycota), Antoniomyces loranthicola, was found on leaves of Gaiadendron punctatum (Loranthaceae). It is described and illustrated. The new species and the new genus differ morphologically from all other known species and genera known in Parmulariaceae by deep internal stroma and superficial radiating hyphae without appressoria.

An overlooked source of fungal diversity: novel hyphomycete genera on trichomes of cerrado plants.

Eight monotypic hyphomycete genera new to science are described from the trichomes of native plants growing in the cerrado of Brazil: Trichomatoclava cerradensis, Echinoconidiophorum cerradense, Globoconidiopsis cerradensis, Globoconidium cerradense, Helminthosporiomyces cerradensis, Trichomatosphaera [corrected] cerradensis , Phragmoconidium cerradense, and Vesiculohyphomyces cerradensis gens. spp. nov. Two of the new genera were found on hosts belonging in Myrtaceae, and one of each of the following families: Icacinaceae, Malphigiaceae, Fabaceae, Dilleniaceae, Chrysobalanaceae, and Caryocaraceae. These discoveries suggest that the trichomes of neotropical plants are an unexplored source of novel fungal diversity, and merit more attention in biodiversity surveys.

Some foliicolous fungi on Tabebuia species

The following foliicolous fungi on Tabebuia species are described and illustrated: Anhelia tabebuiae sp. nov. and Dictyonella tabebuiae sp. nov. (ascomycetes), Fumagospora tabebuiae sp. nov., Polychaeton tabebuiae sp. nov. and Septoria tabebuiae-impetiginosae sp. nov. (coelomycetes), Cercospora tabebuiae-impetiginosae sp. nov. and Pseudocercospora tabebuiae-roseo-albae sp. nov. (hyphomycetes). Uncinula peruviana was found and described on T. impetiginosa as a first record for Distrito Federal, Brazil.

Additions to the genera Asterolibertia and Cirsosia (Asterinaceae, Asterinales), with particular reference to species from the Brazilian Cerrado.

Four new Asterolibertia species and a new variety of Cirsosia splendida, all found on native Cerrado plants, belonging to three host families are described, illustrated and named as: A. bahiensis sp. nov. on Erythroxylum sp. (Erythroxylaceae); A. barrinhensis sp. nov. on Diospyros burchellii (Ebenaceae); A. campograndensis sp. nov. on Hirtella glandulosa (Chrysobalanaceae); A. parinaricola sp. nov. on Parinari obtusifolia (Chrysobalanaceae); and Cirsosia splendida var. laevigata var. nov., showing both sexual and asexual morphs, on H. glandulosa and H. gracilipes (Chrysobalanaceae). Finally, A. licaniae is reported on a new host, H. gracilipes. Keys to all the known species of Asterolibertia and Cirsosia are included.

Plurispermiopsis: a new capnodiaceous genus from the Brazilian Cerrado

A new ascomycete genus placed in family Capnodiaceae found in the Brazilian Cerrado is described and designated Plurispermiopsis, type species P. cerradensis.

Primeiro relato de Plasmopara halstedii em Ageratum houstonianum (Asteraceae) no Distrito Federal, Brasil

First report of Plasmopara halstedii on Ageratum houstonianum (Asteraceae) in Distrito Federal, Brazil The occurrence of the sunflower mildew caused by Plasmopara halstedii on Ageratum houstonianum (Asteraceae) is reported for the first time in Brasilia, DF, Brazil. The etiological agent was identified according to its morphological

Foliicolous fungi on Tabebuia species from the cerrado

Three foliicolous fungi found on Tabebuia species are described and illustrated. Two are new hyphomycetous anamorphs, Passalora tabebuiae-ochraceae sp. nov. and Pseudocercospora tabebuiae-caraibae sp. nov. The third is Elsinoëtecomae, originally described on Tabebuia sp., and here epitypified based on material from Tabebuia heptaphylla. Taxonomical novelties include P. tabebuiae-ochraceae Inácio & Dianese sp. nov., P. tabebuiae-caraibae Inácio & Dianese sp. nov.

Revision of the genus Placostromella and inclusion of Palawaniella castanopsis as a third species

The current status of Placostromella (Ascomycota, Dothideomycetes inc. sed.) is discussed, and a third species is added to the genus based on Palawaniella castanopsis J.N. Kapoor. Both species occur on living leaves of Castanopsis (Fagaceae) in South and East Asia. Placostromella castanopsis and the type P. macrospora are fully redescribed and illustrated.