The South African Species of Erythrina.

Collett, D. G.

doi:10.4102/abc.v4i1.1720

Cited by 3 publications

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“…Origin of the polyploid species.-There is no evidence that the polyploid species, E. acanthocarpa and E. amaeonica, 2n = 84,. are of common origin or close relationship. E. acanthocarpa is South African and according to Collett (1941) "is limited to the Queenstown-Tarkastad-Cathcart area of the eastern Cape Province where these shrubs are said to form dense thickets." E. amazonica has been collected in several widely removed areas in Amazonian Peru and Brazil, but little is known concerning its ecological relationships.…”

Section: E Embryanamentioning

confidence: 99%

“…Krukoff (1939bKrukoff ( , 1941 surveyed the American species, reduced the synonymy, and clarified specific limits. Treatments of the tropical African species have been presented by Baker (1929), Congolian species by Louis (1938) and South A,frican species by Collett (1941). The Asiatic, Polynesian and Australian species, although the subject of preliminary study by Krukoff (1939a), are yet to receive adequate taxonomic attention.…”

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Studies in the Leguminosae. I. Chromosome Numbers in Erythrina L.

Atchison

1947

American J of Botany

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Section: E Embryanamentioning

confidence: 99%

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confidence: 99%

Studies in the Leguminosae. I. Chromosome Numbers in Erythrina L.

Atchison

1947

American J of Botany

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“…and E. zeyheri Harv.) also have folded standard petals (Figure 1D; Collett, 1941; Jacot Guillarmod et al, 1979), which are similar to those of the tubular‐shaped hummingbird‐pollinated species. Based on phylogenetic analyses of plastid DNA and morphological characters, Bruneau (1996, 1997) suggested that hummingbird pollination had evolved several times independently in Erythrina together with the tubular flower morphology.…”

Section: Figurementioning

confidence: 66%

Judge it by its shape: a pollinator‐blind approach reveals convergence in petal shape and infers pollination modes in the genus Erythrina

Bilbao

Bruneau

Joly

2021

American J of Botany

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Premise Pollinators are thought to exert selective pressures on plants, mediating the evolution of convergent floral shape often recognized as pollination syndromes. However, little is known about the accuracy of using petal shape for inferring convergence in pollination mode without a priori pollination information. Here we studied the genus Erythrina L. as a test case to assess whether ornithophyllous pollination modes (hummingbirds, passerines, sunbirds, or mixed pollination) can be inferred based on the evolutionary analysis of petal shape. Methods We characterized the two‐dimensional dissected shape of standard, keel, and wing petals from 106 Erythrina species using geometric morphometrics and reconstructed a phylogenetic tree of 83 Erythrina species based on plastid trnL‐F and nuclear ribosomal ITS sequences. We then used two phylogenetic comparative methods based on Ornstein–Uhlenbeck models, SURFACE and l1OU, to infer distinct morphological groups using petal shape and identify instances of convergent evolution. The effectiveness of these methods was evaluated by comparing the groups inferred to known pollinators. Results We found significant petal shape differences between hummingbird‐ and passerine‐pollinated Erythrina species. Our analyses also revealed that petal combinations generally provided better inferences of pollinator types than individual petals and that the method and optimization criterion can affect the results. Conclusions We show that model‐based approaches using petal shape can detect convergent evolution of floral shape and relatively accurately infer pollination modes in Erythrina. The inference power of the keel petals argues for a deeper investigation of their role in the pollination biology of Erythrina and other bird‐pollinated legumes.

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