Aneilema

Aneilema
Aneilema acuminatum flower
Systematics
Monocots Commelinids Order : Commelina-like (Commelinales) Family : Commelina plants (Commelinaceae) Subfamily : Commelinoideae Genre : Aneilema
Scientific name
Aneilema
R.Br.

Aneilema biflorum

Aneilema is a genus of plants fromthe Commelina family (Commelinaceae). The botanical name of the genus is derived from the Greek words a- , Toggle for without 'and Eilema for, envelope', and points out that the inflorescences are not enveloped by conspicuous bracts.

description

The species of the genus Aneilema are annual and perennial herbaceous plants with occasionally tuberous roots and differently shaped leaves .

The inflorescence consists of individual coils or coils arranged in panicles . There are no noticeable bracts. The hermaphrodite flowers are zygomorphic . Their three free sepals are the same. The three free petals , however, are often unevenly or differently colored. The upper pair of petals is nailed, white or purple to lavender or yellow to orange. The often inconspicuous lower petals are greatly reduced. They are seldom enlarged. Of the six stamens , rarely five, the three front ones are fertile. Occasionally the middle of them is sterile. The two to three posterior ones are staminodial . The stamens are the same. More often the middle one is shorter. The stamens are all bare or the side of them are bearded. The anthers of the middle stamens usually differ from the lateral ones. Reduced anthers are usually bilobed. The ovary is three or two-sided. Ventral compartments contain one to six single row ovules . The dorsal compartment is not developed or usually contains only one ovule.

The fruits are capsule fruits with mostly two valves. They contain seeds with a linear hilum and dorsal embryo .

Systematics and distribution

The genus Aneilema is common in Africa , the Arabian Peninsula , tropical America, Yemen , Madagascar and Australia .

The first description by Robert Brown was published in 1810. The genus Aneilema includes the species listed below.

Synonyms are Lamprodithyros Hassk. (1863) and Ballya Brenan (1964).

proof

literature

• David Richard Hunt : Aneilema . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 258 .

Individual evidence

1. ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 10.
2. ^ Prodromus Florae Novae Hollandiae et Insulae van-Diemen . 1810, p. 270 ( online ).
3. ↑ ^{a b c d e f g h} Rafaël Govaerts (Ed.): Aneilema. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved March 19, 2020.

further reading

• Robert B. Faden: The morphology and taxonomy of Aneilema R. Brown (Commelinaceae) . (= Smithsonian Contributions to Botany, number 76). 1991 ( online ).

Web links

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

• List of species for Aneilema in the Red List of South African Plants