Dipcadi

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Dipcadi
Dipcadi serotinum-IMG 4331.jpg
Flowers of Dipcadi serotinum
Scientific classification e
Kingdom: Plantae
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Asparagaceae
Subfamily: Scilloideae
Genus: Dipcadi
Medik.[1]
Synonyms[1]
  • Zuccangnia Thunb.
  • Uropetalon Burch. ex Ker Gawl.
  • Polemannia P.J.Bergius ex Schltdl.
  • Baeoterpe Salisb.
  • Tricharis Salisb.

Dipcadi is a genus of bulbous flowering plants in the family Asparagaceae, subfamily Scilloideae (also treated as the family Hyacinthaceae).[2] It is widely distributed, occurring in southern Europe, most of Africa and the Middle East through to the Indian subcontinent.[1]

Description[edit]

Species of Dipcadi grow from small bulbs. The solitary flower stem (scape) bears a loose raceme of green or brown flowers, sometimes with different colours at the tips of the three inner tepals. The raceme is usually one-sided. The tepals are joined at the base for up to two thirds of their length to form a tube. The ends of the tepals then curve outwards, particularly the outer three. The outer three tepals may have a rounded "spur" at their tips. The stamens, which are enclosed within the flower, are joined to the tube formed by the tepals and have flat filaments. The black seeds are in the shape of a disc or a flattened globe.[3][4]

Dipcadi serotinum, from south-west Europe and north Africa, although sombre in colour, is sometimes cultivated by gardeners specializing in ornamental bulbous plants.[5]

Systematics[edit]

The genus was named by Friedrich Kasimir Medikus in 1790, based on the species Linnaeus had called Hyacinthus serotinus. Medikus distinguished Dipcadi from Hyacinthus because of the former's many flattened seeds and tubular flowers.[6] Along with three other genera, Albuca, Ornithogalum sensu lato and Pseudogaltonia, Dipcadi is placed in the tribe Ornithogaleae (or subfamily Ornithogaloideae by those who recognize the Scilloideae as the separate family Hyacinthaceae).[7]

Species[edit]

As of March 2013, the World Checklist of Selected Plant Families recognized 41 species and one hybrid:[8]

References[edit]

  1. ^ a b c "Dipcadi", World Checklist of Selected Plant Families, Royal Botanic Gardens, Kew, retrieved 2013-03-28 
  2. ^ Stevens, P.F. (2001 onwards), Angiosperm Phylogeny Website: Asparagales: Scilloideae, retrieved 2013-03-28 
  3. ^ "Dipcadi Raf.", eMonocot, retrieved 2013-03-28 
  4. ^ Martinez-Azorin, Mario; Crespo, Manuel B.; Juan, Ana; Fay, Michael F. (2011), "Molecular phylogenetics of subfamily Ornithogaloideae (Hyacinthaceae) based on nuclear and plastid DNA regions, including a new taxonomic arrangement", Annals of Botany 107 (1): 1–37, doi:10.1093/aob/mcq207 , p. 15
  5. ^ Grey-Wilson, Christopher & Mathew, Brian (1981), Bulbs : the bulbous plants of Europe and their allies, London: Collins, ISBN 978-0-00-219211-8 , p. 116
  6. ^ Ghazanfar, Shahina A. (1996), "The Genus Dipcadi (Hyacinthaceae) in the Arabian Peninsula", Kew Bulletin 51 (4): 803, doi:10.2307/4119738 
  7. ^ Manning, John C.; Forest, Félix; Devey, Dion S.; Fay, Michael F.; Goldblatt, Peter (2009), "A molecular phylogeny and a revised classification of Ornithogaloideae (Hyacinthaceae) based on an analysis of four plastid DNA regions", Taxon 58 (1): 77–107, JSTOR 27756826 
  8. ^ Search for "Dipcadi", World Checklist of Selected Plant Families, Royal Botanic Gardens, Kew, retrieved 2013-03-28