Hymenodictyon

Hymenodictyon is a genus of flowering plants in the family Rubiaceae. It has about 30 species.[1] All are native to the Old World. The wood of Hymenodictyon orixense is soft and has limited use, mostly for boxes.[2] The type species for Hymenodictyon is Hymenodictyon orixense (synonym: Hymenodictyon excelsum).[3][4]

Hymenodictyon
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Gentianales
Family:
Rubiaceae
Subfamily:
Cinchonoideae
Tribe:
Hymenodictyeae
Genus:
Hymenodictyon

Type species
Hymenodictyon orixense
Species

~ 30 species, see text

Hymenodictyon was named by Nathaniel Wallich in 1824 in an addendum to William Roxburgh's Flora Indica, in an edition published by Carey and Wallich after Roxburgh's death.[5][6] The generic name is derived from two Greek words, hymen, "membrane", and diktyon, "net". It refers to the wing that surrounds each seed.[7]

Molecular phylogenetic studies have shown that Hymenodictyon is paraphyletic over the Madagascan genus Paracorynanthe.[8]

In Hymenodictyon and Paracorynanthe, the stipules bear large deciduous glands called colleters. The corolla tube is narrow at the base, gradually widening toward the apex. The fruit is a woody capsule.

References
  1. Hymenodictyon At: World Checklist of Rubiaceae At: Kew Gardens Website. (see External links below).
  2. David J. Mabberley. 2008. Mabberley's Plant-Book third edition (2008). Cambridge University Press: UK. ISBN 978-0-521-82071-4
  3. Hymenodictyon In: Index Nominum Genericorum. In: Regnum Vegetabile (see External links below).
  4. David J. Mabberley. 1982. Hymenodictyon orixense, page 66. In: "William Roxburgh's 'Botanical description of a new species of Swietenia (Mahogany)' and other overlooked binomials in 36 vascular plant families". Taxon 31(1):65-73.
  5. Hymenodictyon In: International Plant Names Index. (see External links below).
  6. Nathaniel Wallich. 1824. Flora Indica; or Descriptions of Indian Plants 2:148. The Mission Press. Serampore, India. (see External links below)
  7. Umberto Quattrocchi. 2000. CRC World Dictionary of Plant Names volume II. CRC Press: Boca Raton; New York; Washington,DC;, USA. London, UK. ISBN 978-0-8493-2676-9 (vol. II). (see External links below).
  8. Ulrika Manns and Birgitta Bremer. 2010. "Towards a better understanding of intertribal relationships and stable tribal delimitations within Cinchonoideae s.s. (Rubiaceae)". Molecular Phylogenetics and Evolution 56(1):21-39. doi:10.1016/j.ympev.2010.04.002
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