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| Wanntorp, L.. |
| Hoya with perhaps 300 species is one of the most diverse angiosperm genera in the tropical rainforests of Southeast Asia and New Guinea. Knowledge of the number of species and their relationships is still very unsatisfactory. Floral characters have been used to subdivide the genus into sections, although none of these groups were based on phylogenetic relationships. Recently, molecular phylogenetic studies have shed new light on the intrageneric relationships of the genus by identifying three main monophyletic clades, in addition to a core Hoya group that includes most of the species examined. One clade includes New Guinean/Australian species, while the other two, the Acanthostemma and the Eriostemma clades, mainly correspond to existing sections. I here... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Acanthostemma; Core Hoya; Eriostemma; Hoya; Molecular systematics; New Guinean/Australian clade; Phylogenetic tree. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/526034 |
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| Kleijn, David; Donkelaar, Ruurd van. |
| The taxonomy and ecology of the genus Hoya R.Br, are unclear, especially in the core area of its distribution: Sumatra, Borneo, Sulawesi and Irian Jaya. This paper summarises the available information on the ecology of Hoya species, and describes eight species from central Sulawesi. An important ecological trait of many Hoya species is their association with ants. Four types of mutualistic relationships with ants occur in the genus: 1) species with specialised leaves to house ants; 2) a single species that provides housing for ants under imbricate leaves; 3) species growing on the carton of ant nests; and 4) species that root in ant inhabited cavities in tree trunks and branches. Four of the eight described species grew in association with ants (types... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Hoya; Marsdenieae; Sulawesi; Ant gardens; Ant plants; Epiphytes. |
| Ano: 2001 |
URL: http://www.repository.naturalis.nl/record/524796 |
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