Hymenodictyon Explained

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 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.

Species

, Plants of the World Online accepted the following species:^[9]

• Hymenodictyon antakaranensis Razafim. & B.Bremer
• Hymenodictyon austroafricanum J.E.Burrows & S.M.Burrows
• Hymenodictyon berivotrense Cavaco
• Hymenodictyon biafranum Hiern
• Hymenodictyon decaryi Homolle
• Hymenodictyon embergeri Cavaco
• Hymenodictyon epiphyticum Razafim. & B.Bremer
• Hymenodictyon fimbriolatum K.Schum. ex De Wild.
• Hymenodictyon flaccidum Wall.
• Hymenodictyon floribundum (Hochst. & Steud.) B.L.Rob.
• Hymenodictyon glabrum (Cavaco) Razafim. & B.Bremer
• Hymenodictyon horsfieldii Miq.
• Hymenodictyon kaokoensis Swanepoel & van Jaarsv.
• Hymenodictyon leandrii Cavaco
• Hymenodictyon louhavate Homolle
• Hymenodictyon madagascaricum Baill. ex Razafim. & B.Bremer
• Hymenodictyon obovatum Wall.
• Hymenodictyon occidentale Homolle
• Hymenodictyon orixense (Roxb.) Mabb.
• Hymenodictyon pachyantha K.Krause
• Hymenodictyon parvifolium Oliv.
• Hymenodictyon perrieri Drake
• Hymenodictyon scabrum Stapf
• Hymenodictyon septentrionale Cavaco
• Hymenodictyon seyrigii Cavaco
• Hymenodictyon timoranum (Span.) Miq.
• Hymenodictyon tsingy Razafim. & B.Bremer

External links

• Hymenodictyon At: Search Page At: World Checklist of Rubiaceae At: Index by Team At: Projects At: Science Directory At: Scientific Research and Data At: Kew Gardens
• Hymenodictyon At:Index Nominum Genericorum At: References At: NMNH Department of Botany At: Research and Collections At: Smithsonian National Museum of Natural History
• Hymenodictyon At: Plant Names At: IPNI
• Flora Indica At: Center for Study of the Life and Work of William Carey At: William Carey University
• CRC World Dictionary of Plant Names: D-L At: Botany & Plant Science At: Life Science At: CRC Press
• Hymenodictyon At: List of Genera At: Rubiaceae At: List of families At: Families and Genera in GRIN At: Queries At: GRIN taxonomy for plants

Notes and 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.
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. (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.
9. Web site: Hymenodictyon Wall.. . Plants of the World Online . Royal Botanic Gardens, Kew. 2023-03-20 .