Sedum album subs. rupi-melitense

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Since 4 Aug 2013

Sedum album subs. rupi-melitense Mifsud, R.Stephenson & Thiede
227(2): 138. 2015 [23 Sep 2015] [epublished]
Family: CRASSULACEAE

= Sedum album subs. rupimelitense Mifsud, R.Stephenson & Thiede
Phytotaxa 227(2): 138. 2015 [23 Sep 2015] [epublished], as 'rupi-melitense'

Accepted Scientific Name: Sedum album L.
Sp. Pl. 1: 432. 1753 [1 May 1753] L.

Sedum album subs. rupi-melitense (Sedum album subs. rupimelitense) Photo by: Amante Darmanin
Vegetative habit at Dingli cliffs. Malta. Out of flower it resembles a typical small S. album but it rarely flowers and when it does each flower only has a single whorl of stamens [2].

Origin and Habitat: Malta. This species is found along the cliffs of Malta, more or less from il-Qaws to wied Moqbol.
Type locality: Misraħ Għar Daqquq (close to Ġebel Ciantar), Fawwara, Siġġiewi, on the edge of coastal cliffs of upper coralline limestone, 200 m.
Habitat and ecology: Sedum album subs. rupimelitenseSN|34210]]SN|34210]] is unique in many ways, but it only grows up to 30 metres from the cliff edge, and lost its sexual reproduction.

Synonyms:

Sedum album subs. rupimelitense Mifsud, R.Stephenson & Thiede

Sedum album subs. rupi-melitense Mifsud, R.Stephenson & Thiede

See all synonyms of Sedum album

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Accepted name in llifle Database:
Sedum album L.
Sp. Pl. 1: 432. 1753 [1 May 1753]
Synonymy: 43

Sedum album L.

Leucosedum album (L.) Fourr.
Oreosedum album (L.) Grulich

Sedum albellum Besse
Sedum album subs. athoum (DC.) Make & Petitm.
Sedum album var. brevifolium Boiss.
Sedum album f. chloroticum Lamotte
Sedum album subs. clusianum (Gussone) J.A.Huber

Sedum album var. clusianum (Gussone) Arcangeli
Sedum clusianum Gussone

Sedum album subs. eu-album Syme
Sedum album var. genuinum
Sedum album f. genuinum Battandier
Sedum album var. glanduliferum Ball
Sedum album f. lilacinum Beck
Sedum album var. micranthum (Bastard) DC.

Oreosedum album subs. micranthum (DC.) Velayos
Oreosedum album var. micranthum (DC.) P.V.Heath
Sedum micranthum Bastard

Sedum album f. murale Praeger
Sedum album var. pallens Hartm.

Sedum album subs. balticum (Hartm.) J.A.Huber
Sedum balticum Hartm.

Sedum album f. purpureum (Pau & Font Quer) Maire

Sedum clusianum f. purpureum Pau & Font Quer

Sedum album subs. rhodopaeum (Podp.) J.A.Huber

Sedum rhodopaeum Podp.

Sedum album subs. rupimelitense Mifsud, R.Stephenson & Thiede

Sedum album subs. rupi-melitense Mifsud, R.Stephenson & Thiede

Sedum album f. sabulicola
Sedum album subs. serpentini (Janch.) J.A.Huber

Oreosedum serpentini (Janch.) Grulich
Sedum serpentini Janch.

Sedum album subs. teretifolium (Lamarck) Syme

Sedum teretifolium Lamarck

Sedum album var. turgidum (Bastard) DC.

Sedum turgidum Bastard

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Description: Sedum albumSN|33728]]SN|33728]] subsp. rupimelitense (rupi-melitense) is one of the morphological or local forms of Sedum albumSN|33728]]SN|33728]] from Malta (Maltese Islands). The subsp. rupimelitense “differ from previously known S. album plants in having very rarely formed inflorescences mostly without peduncular leaves and floral bracts, flowers in which (3–)5 stamens of one whorl, mostly of the antepetalous one, have dysfunctional and often abortive anthers and only the stamens of the other whorl having 5, dark maroon to blackish-brown, mostly indehiscent anthers at anthesis, pollen which is partly deformed and shrivelled, carpels without nectary scales, and fruits and seeds which remain undeveloped and sterile. The Maltese plants have apparently switched from generative to almost exclusively vegetative reproduction and are described as a new endemic subspecies” [1].

Subspecies, varieties, forms and cultivars of plants belonging to the Sedum album group

Sedum album L.: forms mat-like stands and has star-like, white flowers. It is a very variable. Distribution: Europe, Mediterranean, Northern Africa, Western Asia, Iran, and Siberia. Naturalized in the USA and Canada.
Sedum album subs. clusianum (Gussone) J.A.Huber: has denser glandular hairiness especially in the stem.
Sedum album var. micranthum (Bastard) DC.: is smaller in size, with obovate leaves (width 3 mm, length 6 mm), petals up to 3 mm long and redder. Distribution: Southern part of the range.
Sedum album subs. rupimelitense Mifsud, R.Stephenson & Thiede: Out of flower it resembles a typical small S. album but it rarely flowers and when it does each flower only has a single whorl of stamens. Distribution: Malta (from il-Qaws to wied Moqbol).

Bibliography: Major references and further lectures
1) Stephen Martin Mifsud, Ray Stephenson, Joachim Thiede “Sedum album subsp. rupi-melitense (Crassulaceae), a new vegetatively reproducing subspecies from Malta (Maltese Islands, Central Mediterranean)” Phytotaxa 227(2): 138. 2015 [23 Sep 2015] http://www.crassulaceae.ch/uploads/files/pdf/Sedum/MaltaSedum_FinalProof-Sep2015_2.pdf
2) Sedum album subsp. rupi-melitense in: International Crassulaceae Network http://www.crassulaceae.ch/de/artikel?akID=182&aaID=2&aiID=A&aID=5013

Sedum album subsp. rupi-melitense at Dingli cliffs. Malta. (Sedum album subs. rupimelitense) Photo by: Amante Darmanin

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