Ruellien

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Ruellien
Ruellia makoyana

Ruellia makoyana

Systematics
Asterids
Euasterids I
Order : Mint family (Lamiales)
Family : Acanthus family (Acanthaceae)
Subfamily : Acanthoideae
Genre : Ruellien
Scientific name
Ruellia
L.

The Ruellia ( Ruellia ) are a genus of plants in the Acanthus family (Acanthaceae). The 150 to 300 species thrive in tropical to subtropical areas almost worldwide.

description

Illustration from Flore des serres , Volume 14 by Ruellia baikiei
Illustration from Flore médicale des Antilles, ou, Traité des plantes usuelles , plate 114 from Ruellia patula
Illustration from Botanical Magazine , Volume 106, 1880 by Ruellia portellae
Illustration from The native flowers and ferns of the United States in their botanical, horticultural and popular aspects , 1879 by Ruellia ciliosa

Vegetative characteristics

Ruellia species grow as upright, climbing or creeping, annual to perennial herbaceous plants and shrubs . The stem is square.

The opposite leaves are stalked or sessile. The mostly simple leaf blades are elliptical, ovate-lanceolate or oblong-spatulate with a pointed-pointed or blunt upper end. The leaf margins are smooth. Stipules are missing.

Generative characteristics

The terminal or lateral inflorescences are of different shapes. Support and cover sheets are present or missing. There may be flower stalks.

The often large, hermaphrodite flowers are five-fold and radially symmetrical to zygomorphic with a double flower envelope . The five sepals are more or less the same length and only fused together at their base. The five petals are fused tubular to funnel-shaped with two lips. The color of the petals is yellow, white or red to purple. Two of the four fertile stamens have grown together. Two carpels have become a top permanent ovary grown from two to ten ovules per ovary chamber. The thin stylus ends in an unequal bilobed scar.

Usually two to twenty seeds ripen in double capsule fruits . The flattened to flat seeds are ovoid or spherical.

ecology

The pollination is effected by insects ( Entomophilie ). The unit of spread ( diaspore ) is the seed.

Distribution and systematics

The genus Ruellia was established by Carl von Linné . The generic name Ruellia honors the French humanist, doctor and botanist Jean Ruel , in Latin Ruellius (1474–1537). Ruellia tuberosa L. was specified as the lectotype species by Nathaniel Lord Britton and Addison Brown in An Illustrated Flora of the Northern United States , 2nd edition, 3, page 241 in 1913 .

Synonyms for Ruellia L. are: Aphragmia Nees , Arrhostoxylum Nees , Benoicanthus Heine & A.Raynal , Blechum P.Browne , Brunoniella Bremek. , Copioglossa Miers , Cryphiacanthus Nees , Dinteracanthus C.B. Clarke ex Schinz , Dipteracanthus Nees , Endosiphon T.Anderson ex Benth. & Hook. f. , Eusiphon Benoist , Gymnacanthus Nees , Gymnacanthus Oerst. , Leptosiphonium F. Muell. , Lychniothyrsus Lindau , Nothoruellia Bremek. , Pararuellia Bremek. , Pattersonia J.F. Gmel. , Polylychnis Bremek. , Pseudoruellia Benoist , Sclerocalyx Nees , Spirostigma Nees Stenoschista Bremek. , Stephanophysum Pohl , Tacoanthus Baill. , Ulleria Bremek.

The Ruellia species are native to both hemispheres from the tropical to the subtropical regions of the New World and Old World .

The genus Ruellia belongs to the large tribe Ruellieae in the subfamily Acanthoideae.

Selected species

There are around 150 to 300 species in the genus Ruellia :

Species formerly belonging to the genus Ruellia (selection):

literature

Individual evidence

  1. a b c d e f Kamal Akhtar Malik, Abdul Ghafoor: Ruellia at Tropicos.org. In: Flora of Pakistan . Missouri Botanical Garden, St. Louis
  2. Lotte Burkhardt: Directory of eponymous plant names . Extended Edition. Botanic Garden and Botanical Museum Berlin, Free University Berlin Berlin 2018. [1]
  3. a b Ruellia at Tropicos.org. Missouri Botanical Garden, St. Louis, Retrieved December 25, 2017.
  4. a b c d e f g h i j k l m n o p q r s t u Ruellia in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved December 15, 2018.
  5. Erin A. Tripp, Thomas F. Daniel, Siti Fatimah, Lucinda A. McDade: Phylogenetic Relationships within Ruellieae (Acanthaceae) and a Revised Classification. In: International Journal of Plant Sciences , Volume 174, Issue 1, January 2013, pp. 97-137. Full text online.
  6. a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai Kamal Akhtar Malik, Abdul Ghafoor: Ruellia at Tropicos.org. In: Flora of Pakistan . Missouri Botanical Garden, St. Louis
  7. ^ Iain Darbyshire, Erin A. Tripp, Guy E. Onjalalaina: Ruellia domatiata (Acanthaceae), a striking new species from Madagascar. In: Kew Bulletin , Volume 72, March 2017, p. 13. doi : 10.1007 / s12225-017-9676-7
  8. a b c d Lucinda A. McDade, Erin A. Tripp: A synopsis of Costa Rican Ruellia (Acanthaceae), with descriptions of four new species. In: Brittonia , Volume 59, 2007, pp. 199-216. doi : 10.1663 / 0007-196X (2007) 59 [199: ASOCRR] 2.0.CO; 2

Web links

Commons : Ruellien ( Ruellia )  - collection of images, videos and audio files