Taxonomic Revision of Daniellia (Leguminosae: Caesalpinioideae)
Daniellia (Leguminosae: Caesalpinioideae) is a genus of ten species of medium to large trees from tropical and subtropical Africa. In contrast to earlier accounts, D. mortehanii is treated here as a synonym of D. pynaertii, and D. oblonga, which previously
has been treated by some authors as a synonym of D. thurifera, is accepted. In addition, we describe as new
Daniellia glandulosa
. Quantitative characters such as receptacle length, petiole width, sepal length, and largest leaflet length have been used to aid species differentiation
following the results of recent morphometric studies that revealed their taxonomic utility. Micromorphological features such as pollen surface and leaf glands were studied in all species, many for the first time, and the number, position, and shape of the glands present in the leaves are shown
to be taxonomically useful in distinguishing species. A dichotomous key and a table of key characters is provided, as well as detailed descriptions and distribution maps for each species. All species are illustrated, D. oblonga and D. glandulosa for the first time. Three lectotypes
and a neotype are designated.
Keywords: AFRICA; DANIELLIA GLANDULOSA; RAIN FOREST; SAVANNAH; TAXONOMY
Document Type: Regular Paper
Publication date: 01 April 2010
- Systematic Botany is the scientific journal of the American Society of Plant Taxonomists and publishes four issues per year.
2011 Impact Factor: 1.517
2011 ISI Journal Citation Reports® Rankings: 87/190 - Plant Sciences
34/45 - Evolutionary Biology - Editorial Board
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