Phedimus

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Phedimus
Caucasian stonecrop (Phedimus spurius)

Caucasian stonecrop ( Phedimus spurius )

Systematics
Nuclear eudicotyledons
Order : Saxifragales (Saxifragales)
Family : Thick-leaf family (Crassulaceae)
Subfamily : Sempervivoideae
Tribe : Umbiliceae
Genre : Phedimus
Scientific name
Phedimus
Raf.

Phedimus is a genus of plants from the family of thick-leaf plants (Crassulaceae). In German it is also referred to as Asian fat hen .

description

Subgenus Phedimus : Phedimus obtusifolius
Subgenus Phedimus : Phedimus stellatus
Subgenus Aizoon : Thick- leaf stonecrop ( Phedimus aizoon )
Subgenus Aizoon : Phedimus middendorffianus

The species of the genus Phedimus are perennial or rarely annual , herbaceous , usually bare succulent plants. Their shoots occasionally lignify at the base. Sometimes they have a woody rhizome . Their flat, mostly serrated or toothed leaves are arranged alternately or opposite. Several hydathodes are located on the underside of the leaves along the leaf margins .

The flower stems are erect or ascending. Their inflorescence usually forms dense, multi-flowered cymes or ebony . The five- to six-fold (rarely four to seven-fold) obdiplostemonen flowers are sessile, almost sessile or short-stalked and each have a bract . Their green, mostly unequal, broadly seated sepals are elongated to linear. The white, pink, red to slightly purple or yellow petals are free and mostly spread out at the base.

The fruit is a mostly spread out and rarely upright follicle fruit . The brown seeds it contains are egg-shaped and 1 to 1.4 millimeters in size.

Systematics and distribution

The genus Phedimus is common in Europe and Asia. The first description was made in 1817 by Constantine Samuel Rafinesque . The botanical name of the genus Phedimus is derived either from the Greek word "φαίδιμος" (phaidimos) for shiny or refers to Phedimus, the archbishop of Amasea and Metropolitan of Pontia.

According to Henk 't Hart (1944–2000) and Bert Bleij, the genus Phedimus is subdivided into two sub-genera with the following species:

  • Subgenus Phedimus
    • Phedimus obtusifolius (CAMey.) 'T Hart (Syn .: Sedum obtusifolium C.A. Mey. )
    • Caucasian stonecrop ( Phedimus spurius (M.Bieb.) 'T Hart , Syn .: Sedum spurium M. Bieb. )
    • Phedimus stellatus (L.) Raf. (Syn .: Sedum stellatum L. ); Home: Southern Europe, Algeria
    • Phedimus stevenianus (Rouy & EG Camus) 't Hart (Syn .: Sedum stevenianum ) Rouy & EG Camus ; Home: Caucasus
    • Phedimus stoloniferus (SG Gmel.) 'T Hart (Syn .: Sedum stoloniferum S.G. Gmel. ); Home: Caucasus, Turkey, Northern Iran

proof

literature

  • Urs Eggli (ed.): Succulent lexicon. Crassulaceae (thick leaf family) . Eugen Ulmer, Stuttgart 2003, ISBN 3-8001-3998-7 , pp. 204-210 .
  • Ray Stephenson: Succulents for most gardens. Part 1 Phedimus . In: Cactus and Succulent Journal . Volume 77, No. 3, pp. 118-120 and p. 126, 2005
  • Walter Erhardt among others: The big pikeperch. Encyclopedia of Plant Names . Volume 2. Verlag Eugen Ulmer, Stuttgart 2008. ISBN 978-3-8001-5406-7

Individual evidence

  1. ^ Constantine Samuel Rafinesque: American Monthly Magazine and Critical Review . Volume 1, New York, 1817, pp. 438 ( full text in Google Book Search).
  2. Henk 't Hart, Bert Bleij: Phedimus . In: Urs Eggli: Succulents Lexicon Volume 4. Crassulaceae (thick-leaf plants). 2003, pp. 204-210.
  3. a b c d e Kunjun Fu, Hideaki Ohba, Michael G. Gilbert: Crassulaceae Candolle. In: Flora of China, Volume 8: Phedimus - online with the same text as the printed work.
  4. Jaakko Jalas, Juha Suominen, Raino Lampinen, Arto Kurtto: Atlas florae europaeae . Volume 12 (Resedaceae to Platanaceae). Pages 80-81, Helsinki 1999, ISBN 951-9108-12-2 .
  5. Jaakko Jalas, Juha Suominen, Raino Lampinen, Arto Kurtto: Atlas florae europaeae. Volume 12 (Resedaceae to Platanaceae). Page 80, Helsinki 1999, ISBN 951-9108-12-2 .

further reading

  • Hideaki Ohba, Bruce M. Bartholomew, Nicholas J. Turland, Fu Kunjun: New Combinations in Phedimus (Crassulaceae) . In: Novon. Volume 10, No. 4, Missouri Botanical Garden Press, 2000, pp. 400-402: JSTOR 3392995

Web links

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