Cryosophileae

Zombia antillarum

The Cryosophileae are a tribe of the palm family ( Arecaceae ).

Features

The representatives are hermaphrodite, rarely polygamous palm trees that bloom repeatedly. The leaves are fan-shaped and induplicat ( they tear along the fold lines on the adaxial side of the leaves on ). At the leaf base, there may be a central crack. The large vascular bundles in the petiole usually have a phloem strand.

The flowers are individually. The gynoecium is not fused ( apokarp ) and consists of one to four carpels.

Dissemination

The tribe is in America in the tropics and subtropics.

System

The Cryosophileae be assigned within the family Arecaceae of the subfamily Coryphoideae. The tribe within the meaning of Dransfield et al. (2008) is identified in most studies as a natural kinship group ( clade ). Their sister group is the tribe Sabaleae.

To Tribus ten genera are counted:

• Schippia
• Trithrinax
• Zombia
• Coccothrinax
• Hemithrinax
• Leucothrinax
• Thrinax
• Chelyocarpus
• Cryosophila
• Itaya

Roncal and colleagues in 2008, the relationships within the tribe examined, which can be represented according to the following cladogram (but lacks the pure South American genus Trithrinax ):

Coccothrinax

Hemithrinax

Leucothrinax

Zombia

Thrinax

Schippia

Cryosophila

Itaya

Chelyocarpus

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