Cresseae
| Cresseae | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bonamia menziesii |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Cresseae | ||||||||||||
| Benth. & Hook. |
Cresseae is a tribe from the family of wind plants (Convolvulaceae). The type genus is Cressa .
description
Representatives of the tribe Cresseae are subshrubs and shrubs or more rarely lianas . The flowers are radial symmetry and mostly hermaphroditic, only Hildebrandtia has unisexual flowers. The sepals can be the same or different, they usually do not enlarge after flowering, only in female Hildebrandtia flowers and in some species of Seddera do the sepals enlarge. The stamens are usually straight and not hairy. The pollen grains are tricolpat or pantocolpat and not prickly. The two styles of a flower stand alone or are fused to form a two-column style. The scars are spherical, kidney-shaped or lobed. The fruits are mostly capsules that burst open , nuts are only rarely formed. The fruits are one to four chambers and contain one to four seeds .
Occurrence
The genera of the tribe Cresseae occur worldwide.
Systematics
The following genera belong to the tribe Cresseae:
- Bonamia Thouars
- Cladostigma Radlk.
- Cressa L.
- Evolvulus L.
- Hildebrandtia Vatke
- Sabaudiella Chiov.
- Seddera Hochst.
- Stylisma Raf.
The following are provisionally classified in the tribe:
- Itzaea Standl. & Steyerm.
- Neuropeltis Wall.
- Neuropeltopsis Ooststr.
- Wilsonia R.Br.
According to the cladistic definition, the tribe corresponds to the most comprehensive clade in which Cressa cretica L. is classified, but not Maripa scandens Aubl. , Jacquemontia pentanthos (Jacq.) G.Don or Dichondra repens JRForst. & G.Forst.
swell
- Saša Stefanovic, Daniel Austin and Richard Olmstead: Classification of Convolvulaceae: A Phylogenetic Approach (PDF; 318 kB). In: Systematic Botany , Volume 28, Number 4, 2003. pp. 791-806.
