Cyanotis
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Cyanotis is a genus of plants inthe Commelina family (Commelinaceae).
description
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Vegetative characteristics
The species of the genus Cyanotis are usually perennial herbaceous plants with often bulbous roots . The narrow, often two-row leaves are somewhat succulent and occasionally ciliate.
Generative characteristics
The almost non- stalked flowers are in dense, individual, lateral coils , which are carried by a leaf-like or reduced bractea and striking, sickle-shaped bracteoles . The hermaphroditic, violet-blue or purple-pinkish red flowers are (almost) radial symmetry and threefold. Your three sepals are free or grown together at their base. The three petals are free or united with the bases of the stamens and then form a short tube. All six of the same stamens are fertile. Their stamens are usually bearded and often subterminally swollen. The connective are narrow. The ovary is triple. Each compartment contains two ovules .
The dry capsule fruits tear open when ripe. The seeds have a punctiform hilum and a terminal embryo .
Systematics and distribution
Taxonomy
The genus Cyanotis was created in 1825 by David Don in Prodromus Florae Nepalensis. London , page 45-4 erected . The botanical name of the genus is derived from the Greek words kyanos for 'dark blue' and ous , otos for 'ear' and refers to the color of the flowers. Synonyms for Cyanotis D. Don nom. cons. are: Amischophacelus R.S.Rao & Kammathy , Belosynapsis Hassk. , Cyanopogon Welw. ex CBClarke , Dalzellia Hassk. nom. illeg., Erythrotis Hook. f. , Siphostigma Raf. , Tonningia Neck. , Zygomenes Salisb.
Species and their distribution
The genus Cyanotis is common in the tropics of the Old World .
The genus Cyanotis includes the following species:
- Cyanotis adscendens Dalzell
- Cyanotis ake-assii Brenan
- Cyanotis angusta C.B. Clarke
- Cyanotis arachnoidea C.B. Clarke
- Cyanotis arcotensis R.S.Rao
- Cyanotis axillaris (L.) D. Don ex Sweet
- Cyanotis beddomei (Hook. F.) Erhardt, Götz & Seybold (Syn .: Erythrotis beddomei Hook f.. , Cyanotis kewensis C.B.Clarke nom. Superfl., Tonningia kewensis (CBClarke) Kuntze , Belosynapsis kewensis Hassk. , Cyanotis kewoides Christenh. & Byng ): This new combination was made in 2008. It occurs only in the Indian states of Kerala and Tamil Nadu .
- Cyanotis burmanniana Wight
- Cyanotis caespitosa Kotschy & Peyr.
- Cyanotis ceylanica Hassk.
- Cyanotis ciliata (flower) Bakh. f.
- Cyanotis cristata (L.) D. Don
- Cyanotis cucullata (Roth) Kunth
- Cyanotis cupricola J.Duvign.
- Cyanotis dybowskii Hua
- Cyanotis fasciculata (B. Heyne ex Roth) Schult. & Schult. f.
- Cyanotis flexuosa C.B. Clarke
- Cyanotis foecunda DC. ex Hassk.
- Cyanotis ganganensis Fast
- Cyanotis grandidieri H.Perrier
- Cyanotis hepperi Brenan
- Cyanotis homblei De Wild.
- Cyanotis karliana Hassk.
- Cyanotis lanata Benth.
- Cyanotis lanceolata Wight
- Cyanotis lapidosa E. Phillips
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Cyanotis longifolia Benth. : There are three varieties:
- Cyanotis longifolia var. Longifolia
- Cyanotis longifolia var. Gracilis (Fast) Fast
- Cyanotis longifolia var. Rupicola (Fast) Fast
- Cyanotis loureiroana (Schult. & Schult. F.) Merr.
- Cyanotis lourensis Fast
- Cyanotis nyctitropa Deflers
- Cyanotis pachyrrhiza Oberm.
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Cyanotis paludosa Brenan : There are two subspecies:
- Cyanotis paludosa subsp. paludosa
- Cyanotis paludosa subsp. bulbifera thread
- Cyanotis pedunculata Merr.
- Cyanotis pilosa Schult. & Schult. f.
- Cyanotis polyrrhiza Hochst. ex Hassk.
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Cyanotis repens thread & DMCameron : There are two subspecies:
- Cyanotis repens subsp. repens
- Cyanotis repens subsp. robusta thread & DMCameron
- Cyanotis robusta Oberm.
- Cyanotis scaberula Hutch.
- Cyanotis somaliensis C.B. Clarke
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Cyanotis speciosa (L. f.) Hassk. : There are two subspecies:
- Cyanotis speciosa subsp. speciosa
- Cyanotis speciosa subsp. bulbosa thread
- Cyanotis thwaitesii Hassk.
- Cyanotis tuberosa (Roxb.) Schult. & Schult. f.
- Cyanotis vaga (Lour.) Schult. & Schult. f.
- Cyanotis villosa (Spreng.) Schult. & Schult. f.
proof
literature
- David Richard Hunt : Cyanotis . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 261 .
Individual evidence
- ↑ David Don: Prodromus Florae Nepalensis. London 1825, pp. 45-46 ( scanned at biodiversitylibrary.org ).
- ↑ a b c d e f g Rafaël Govaerts (Ed.): Cyanotis. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved March 19, 2020.
