Kilian, Norbert and Galbany-Casals, Merce and Oberprieler, Christoph (2010) Helichrysum nicolai (Compositae, Gnaphalieae), Systematics of a New Dwarf Local Endemic of the Cape Verde Islands, W Africa. FOLIA GEOBOTANICA, 45 (2). pp. 183-199. ISSN 1211-9520,
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Helichrysum nicolai from the Cape Verdean island of Sao Nicolau is described as a species new to science and illustrated. The systematic position in Helichrysum of this acaulescent dwarf rosette shrub with heterogamous capitula, in which the female flowers outnumber the hermaphrodite ones, is established using an ITS phylogeny based on maximum parsimony and Bayesian inference analyses. The new species is most closely related to the Canary Island endemics H. alucense and H. monogynum. The closest relative to these three species are not the other members of the genus on the mid-Atlantic archipelagos but H. somalense from the Horn of Africa region and the southern Arabian Peninsula and the widespread tropical African-S Arabian-SE Iranian H. glumaceum, to which the SE Iranian H. makranicum is found to be conspecific. The phytogeographical significance of these relationships is discussed and at least three independent colonization events of the mid-Atlantic archipelagos by Helichrysum are concluded from the molecular data available.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CANARY-ISLANDS; SEQUENCE DATA; PHYLOGENETIC-RELATIONSHIPS; ASTERACEAE; EVOLUTION; NUCLEAR; CHLOROPLAST; BIOGEOGRAPHY; CLASSIFICATION; INFERENCE; Arabian Peninsula; ITS; Macaronesia; Mid-Atlantic archipelagos; Phylogeny; Phytogeography |
| Subjects: | 500 Science > 580 Botanical sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften > Group Plant Systematics and Evolution (Prof. Dr. Christoph Oberprieler) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Jul 2020 06:20 |
| Last Modified: | 29 Jul 2020 06:20 |
| URI: | https://pred.uni-regensburg.de/id/eprint/24613 |
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