A new genus, Nothovernonia, from tropical Africa (Asteraceae or Compositae, Vernonieae)

Gymnanthemum koekemoerae (Compositae, Vernonieae), a new species from South Africa

A new species of Gymnanthemum (Compositae, Vernonieae) from South Africa is described. It can be distinguished from other species in the genus by the five-flowered capitula and widely obtuse leaf blades.

Nine species from Madagascar are moved from Vernonia to Distephanus (Compositae, Vernonieae)

The genus Distephanus is native to Madagascar, the Mauritius, central and southern Africa, Yemen (Socotra Island), and China. The majority of the diversity is found in Madagascar. Here we provide new combinations for nine species of Vernonia that belong in Distephanus, all from Madagascar. All of the species were formerly placed in the large genus Vernonia, now greatly reduced.

Lettowia, a new genus of Vernonieae from East Africa (Asteraceae)

A new genus, Lettowia H. Rob. & Skvarla is named for the single East African species originally described as Vernonia nyassae Oliv. Its pollen is lophate and triporate, with a perforated tectum restricted to the muri. The new genus is placed near Vernoniastrum in the subtribe Erlangeinae.

Wood Anatomy of Vernonieae (Compositae)

Revisions and key to the Vernonieae (Compositae) of Thailand

Seventeen genera and 48 species, in five subtribes, are recognized in Thailand. These include 15 endemic taxa, half of which are in the largest genus, Acilepis, with others in the genera Camchaya, Koyamasia, and Okia. A new monotypic genus, Pulicarioidea, is established with P. annamica, the new name for the species formerly known as Vernonia pulicarioides. New combinations are also made for Ac...