Heterochaenia

Heterochaenia
	Heterochaenia rivalsii
Systematics
	Nuclear eudicotyledons
	Asterids
	Euasterids II
Order :	Astern-like (Asterales)
Family :	Bellflower family (Campanulaceae)
Genre :	Heterochaenia
Scientific name
	Heterochaenia
	A.DC.

The Heterochaenia are a genus of plants in the bellflower family (Campanulaceae). The four or so species all occur only on the island of Réunion .

description

Heterochaenia rivalsii

Vegetative characteristics

Heterochaenia species are shrubs . The sessile leaves are arranged in groups at the upper ends of the branches.

Generative characteristics

The stalked flowers are in terminal racemose or paniculate inflorescences .

The relatively large, hermaphrodite flowers are radial symmetry and five-fold with a double flower envelope . The five sepals are fused. The five purple, blue or yellow-white petals are fused bell-shaped. The corolla lobes are as long as or longer than the corolla tube. The stamens of the stamens are separate from each other, the base is slender. The anthers are just as long as the stamens. The three-chamber ovary is covered with a five-fold indented, disc-shaped nectarium .

The triple capsule fruits jump up from the upper end in folds.

Heterochaenia ensifolia

Systematics and distribution

The genus Heterochaenia was established in 1839 by Alphonse Pyrame de Candolle in Prodromus Systematis Naturalis Regni Vegetabilis , 7, 2, page 441. Type species is Heterochaenia ensifolia (Lam.) A.DC.

Within the genus Heterochaenia , four species are distinguished, all of which only occur on the island of Réunion :

Heterochaenia borbonica Badré & Cadet : This endemic occurs only on the island of Réunion .
Heterochaenia ensifolia (Lam.) A.DC. (Syn .: Campanula ensifolia Lam. , Wahlenbergia ensifolia (Lam.) A.DC. ): This endemic occurs only on the island of Réunion.
Heterochaenia fragrans H.Thomas, Félicité & Adolphe : This species was first collected by H. Thomas on October 21, 2006 on Réunion and first described in 2008. The holotype isdepositedin Paris in the Muséum national d'histoire naturelle .
Heterochaenia rivalsii Badré & Cadet : This endemic occurs only on the island of Réunion.

literature

TG Lammers: Campanulaceae. In: Klaus Kubitzki (Ed.): The families and genera of vascular plants. , Volume VIII: Flowering Plants: Eudicots, Asterales , Springer Verlag, 2007, ISBN 978-3-540-31050-1 . P. 39. PDF.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f Rafaël Govaerts (Ed.): Heterochaenia. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved February 5, 2018.
↑ ^a ^b ^c Scans of the herbarium material in the Muséum national d'histoire naturelle .

Web links

Commons : Heterochaenia - collection of images, videos and audio files

[WCSP-1] ↑ ^a ^b ^c ^d ^e ^f Rafaël Govaerts (Ed.): Heterochaenia. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved February 5, 2018.

[MNHN-2] Scans of the herbarium material in the Muséum national d'histoire naturelle .