New Combinations in Neotropical Grammitidaceae (Pteridophyta)

New combinations in Neotropical Thelypteridaceae

288 new combinations of Neotropical Thelypteridaceae taxa are proposed in order to recognize monophyletic genera, based on the results of the most recent molecular phylogeny of the family, as well as the morphological uniformity of characters for each genus. The new nomenclatural combinations correspond to 186 Amauropelta taxa, 77 species of Goniopteris, and 25 Steiropteris taxa. A key to all n...

New species, new combinations and new distributions in neotropical species of Elaphoglossum (Lomariopsidaceae).

More new species, new combinations and new distributions are made in the large and difficult genus Elaphoglossum in Neotropic. Ten new species are described, this are: Elaphoglossum adrianae A. Rojas, E. betancuri A. Rojas, E. caridadae A. Rojas, E. glabromarginatum A. Rojas, E. kessleri A. Rojas, E. macdougalii A. Rojas, E. paramicola A. Rojas, E. paxense A. Rojas, E. pseudoherminieri A. Rojas...

New Combinations, Synonymy and Distribution Records for Neotropical Pentodontini and Oryctini (coleoptera: Scarabaeidae: Dynastinae)

New combinations in Odontostemma (Caryophyllaceae)

Sixty-three new combinations in Odontostemma (Alsineae, Caryophyllaceae) are made to accommodate placement of all currently recognized taxa of Arenaria subg. Odontostemma within the genus Odontostemma.

Palynological analysis of Sphaeropteris gardneri (Cyatheaceae, Pteridophyta).

The spore morphology and wall ultrastructure of Sphaeropteris gardneri (Hook.) R.M. Tryon from Brazil were analyzed with LM, SEM and TEM. The spores are trilete with an ornamentation formed of short low ridges with spines in their margins. The exospore is 2.5microm thick, two- layered in section and single or branched channels are present. The perispore is 1.2microm thick and two-layered. The i...