Topic
Arcoa
About: Arcoa is a research topic. Over the lifetime, 2 publications have been published within this topic receiving 51 citations.
Papers
TL;DR: Differences between them in leaf size are consistent with differences in climate that are inferred for the more tropical Fossil Lake flora of the Early Eocene Green River Formation as compared with the warm temperate Late Eocene Florissant flora.
Abstract: Premise of research. Fossil leaves from the early Eocene Green River Formation of Wyoming and late Eocene Florissant Formation of Colorado have been studied and described here as two species in the...
9 citations
TL;DR: P phylogenetic analyses of data from the chloroplast trnL intron and trnF spacer resulted in a single most parsimonious tree in which Umtiza is grouped with six other small caesalpinioid genera in an association of taxonomically and biogeographically disparate taxa.
Abstract: The legume subfamily Caesalpinioideae forms a basal grade in the family, within which the subfamilies Mimosoideae and Papilionoideae are nested. Monophyletic groups within Caesalpinioideae include the tribes Cercideae, which is grouped sister to all remaining legumes, and Detarieae s.l., which is monophyletic only if the monospecific genus Umtiza is excluded. Umtiza is endemic to South Africa and has traditionally been included in the Detarieae, but its placement there has long been questioned. We present phylogenetic analyses of data from the chloroplast trnL intron and trnL‐F spacer and morphology that resulted in a single most parsimonious tree in which Umtiza is grouped with six other small caesalpinioid genera in an association of taxonomically and biogeographically disparate taxa. Umtiza, Gleditsia, and Gymnocladus form a clade that is sister to Ceratonia, Acrocarpus, Arcoa, and Tetrapterocarpon. Although these seven genera are dissimilar in many respects, they share several potential morphological ...
Performance Metrics
| Year | Papers |
|---|---|
| 2019 | 1 |
| 2003 | 1 |