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1 December 2011 Notes on the Flora of Madagascar, 14–21
Abstract

Callmander, M. W., P. B. Phillipson & L. Gautier (ed.) (2011). Notes on the flora of Madagascar, 14–21. Candollea 66: 397–423. In English, English and French abstracts.

Ongoing research on Madagascar's flora is revealing numerous taxonomic novelties and nomenclatural inconsistencies, and providing new data on species distribution. This is the third set of notes in a series that aims to provide the botanical community working on the flora of Madagascar an opportunity to publish short communications on these topics, and comprises eight notes.

Note 14. Lectotypification of two species of Bignoniaceae from Madagascar, by Martin W. Callmander & Peter B. Phillipson. Lectotypes are designated for two species of Bignoniaceae from Madagascar, Rhodocolea boivinii (Baill.) H. Perrier and Stereospermum variabile H. Perrier. Additional observations and conservation threat analyses are also provided for the two species.

Note 15. Two new combinations in Memecylon L. (Melastomataceae) of Madagascar, by R. Douglas Stone & Martin W. Callmander. This note proposes new combinations at species rank for the taxa originally described as Memecylon pedunculatum var. centrale Jacq.-Fél. and Memecylon eglandulosum var. bezavonense Jacq.-Fél. A lectotype is also designated for the latter.

Note 16. Pandanaceae specimens relocated from the University of Neuchâtel (NEU), with two new synonymies, by Martin W. Callmander, Michel O. Laivao & Peter B. Phillipson. In 2010, the Pandanaceae specimens held at the University of Neuchâtel Herbarium (NEU) were permanently transferred to the herbarium of the Conservatoire et Jardin botaniques de la Ville de Genève (G). These included 11 type specimens, and it is therefore necessary to amend the protologues for these species, to reflect these transfers. This note provides a complete list of specimens concerned and details the necessary changes. Two species names based on this material are discussed, and are now formally treated as synonyms.

Note 17. The genus Vernoniopsis Humbert (Asteraceae) in Madagascar, by Martin W. Callmander & Peter B. Phillipson. The authors present a brief review of the endemic Malagasy genus Vernoniopsis Humbert (Asteraceae). Two distinct species are recognised: Vernoniopsis caudata (Drake) Humbert and a second species, based on Vernoniopsis caudata subsp. lokohense Humbert, for which we designate a lecto type and provide the new combination Vernoniopsis lokohense (Humbert) Callm. & Phillipson.

Note 18. Two new records of Orchidaceae from Madagascar, with an updated list of species shared with continental Africa, by Phillip Cribb, Laurent Gautier, Sonia Trigui & Louis Nusbaumer. Didymoplexis verrucosa J. Stewart & Hennessy and Hetaeria heterosepala (Rchb. F.) Summerh., two orchid species hitherto only known from Africa, are newly reported from Madagascar, the latter also representing a new generic record for the island. A list of species shared between Madagascar and Continental Africa is provided and discussed.

Note 19. Malagasy Garcinia L. (Clusiaceae) revisited: new combinations and lectotypifications for Ochrocarpos goudotianus and O. evonymoides and the lectotypification of Garcinia comorensis, by Zachary S. Rogers, Patrick W. Sweeney & Laurent Gautier. New combinations are provided for two Malagasy species of Clusiaceae: Garcinia evonymoides (Planch. & Triana) P. Sweeney & Z. S. Rogers, Garcinia goudotiana (Planch. & Triana) P. Sweeney & Z. S. Rogers. The names Ochrocarpos multiflorus O. Hoffm. and Garcinia disepala Vesque are treated as synonyms of Garcinia evonymoides Planch. & Triana, and Garcinia melleri Baker and Garcinia comorensis Drake as synonyms of Garcinia goudotiana Planch. & Triana. Lectotypes are designated for three names (Garcinia comorensis, Ochrocarpos evonymoides and Ochrocarpos goudotianus).

Note 20. The legacy of Henri Jumelle in Marseille: an overlooked collection of Palms from Madagascar, by Martin W. Callmander, Bruno Vila, John Dransfield & Henk Beentje. Henri Jumelle (1866–1935) described 328 new taxa from Madagascar, including numerous Arecaceae, based mainly on specimens collected by Henri Perrier de la Bâthie. A recent visit to the herbarium of the University of Provence in Marseille (MARS) established that a nearly complete set (217 collections) of Perrier de la Bâthie's Arecaceae material, which has been generally overlooked, is present at MARS.

Note 21. A new name for the endemic species of Diospyros L. (Ebenaceae) in the Seychelles, by George E. Schatz & Porter P. Lowry II. Discovery in the Paris herbarium of a mislabeled duplicate of Pervillé 36 results in an older name for the endemic Seychelles ebony. The authors propose a new combination for this taxon: Diospyros boiviniana (Baill.) G. E. Schatz & Lowry.

Callmander, Phillipson, and Gautier: Notes on the Flora of Madagascar, 14–21
© CONSERVATOIRE ET JARDIN BOTANIQUES DE GENÈVE 2011
"Notes on the Flora of Madagascar, 14–21," Candollea 66(2), 397-423, (1 December 2011). https://doi.org/10.15553/c2011v662a17
Published: 1 December 2011
KEYWORDS
Africa
Arecaceae
Asteraceae
Bignoniaceae
CLUSIACEAE
Didymoplexis
Diospyros
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