Cryosophileae
| Cryosophileae | ||||||||||||
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| Scientific name | ||||||||||||
| Cryosophileae | ||||||||||||
| J.Dransf. et al. |
The Cryosophileae are a tribe of the palm family (Arecaceae).
features
The representatives are hermaphrodite, rarely polygamous palms that bloom several times. The leaves are fan-like and induplicate (they tear along the folds on the adaxial side of the leaves). There may be a central crack at the base of the leaf. The large vascular bundles in the petiole usually have a phloem cord.
The flowers are single. The gynoeceum is not fused (apocarp) and consists of one to four carpels .
distribution
The tribe occurs in America in the tropics and subtropics.
Systematics
The Cryosophileae are assigned to the subfamily Coryphoideae within the Arecaceae family . The tribes as defined by Dransfield et al. (2008) is identified in most studies as a natural family group ( Monophylum ). Her sister group is the Sabaleae tribe .
Ten genera are counted to the tribe:
- Schippia
- Trithrinax
- Zombia
- Coccothrinax
- Hemithrinax
- Leucothrinax
- Thrinax
- Chelyocarpus
- Cryosophila
- Itaya
In 2008, Roncal and colleagues examined the relationships within the tribe, which can be represented according to the following cladogram (however, the purely South American genus Trithrinax is missing ):
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supporting documents
- John Dransfield, Natalie W. Uhl, Conny B. Asmussen, William J. Baker, Madeline M. Harley, Carl E. Lewis: Genera Palmarum. The Evolution and Classification of Palms . Second edition, Royal Botanic Gardens, Kew 2008, ISBN 978-1-84246-182-2 , p. 219.
Individual evidence
- ↑ Julissa Roncal, Scott Zona, Carl E. Lewis: Molecular Phylogenetic Studies of Caribbean Palms (Arecaceae) and Their Relationships to Biogeography and Conservation . Botanical Review, Volume 74, 2008, pp. 78-102. doi : 10.1007 / s12229-008-9005-9