Zygogynum
Zygogynum howeanum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Canellales
Family: Winteraceae
Genus: Zygogynum
Baill.
Synonyms[1][2]
  • Belliolum Tiegh.
  • Bubbia Tiegh.
  • Exospermum Tiegh.
  • Tetrathalamus Lauterb.

Zygogynum is a genus of plant in the winter's bark family Winteraceae. 19 species are native to New Caledonia, and are pollinated primarily by beetles and moths.[3] Other species are native to New Guinea (21 species), the Bismarck Archipelago (1 species), the Solomon Islands (2 species), Lord Howe Island (1 species), and Queensland (2 species).[1]

This genus is interesting for having the greatest range in the number of stamens in any genus: as few as three or as many as 370; a 123 fold difference in the number of stamens. The number of carpels can range from one to as many as fifty.[4]

Species

The genus includes 45 accepted species:[1]

  • Zygogynum acsmithii Vink – southeastern New Caledonia
  • Zygogynum amplexicaule (Vieill. ex P.Parm.) Vink – northern and western New Caledonia
  • Zygogynum archboldianum (A.C.Sm.) Vink – western New Guinea
  • Zygogynum argenteum (A.C.Sm.) Vink – New Guinea
  • Zygogynum baillonii Tiegh. – southeastern New Caledonia
  • Zygogynum bicolor Tiegh. – central New Caledonia
  • Zygogynum bosavicum Vink – New Guinea
  • Zygogynum bullatum (Diels) Vink – Mt. Stolle, New Guinea
  • Zygogynum calophyllum (A.C.Sm.) Vink – New Guinea
  • Zygogynum calothyrsum (Diels) Vink – New Guinea
  • Zygogynum clemensiae (A.C.Sm.) Vink – New Guinea
  • Zygogynum comptonii (Baker f.) Vink - northern New Caledonia
  • Zygogynum crassifolium (Baill.) Vink – New Caledonia
  • Zygogynum cristatum Vink – central New Caledonia
  • Zygogynum cruminatum Vink – New Guinea
  • Zygogynum cyclopensis Vink – New Guinea
  • Zygogynum fraterculus Vink – New Caledonia
  • Zygogynum haplopus (B.L.Burtt) Vink – Solomon Islands
  • Zygogynum howeanum (F.Muell.) Vink – Lord Howe Island
  • Zygogynum ledermannii (Diels) Vink – New Guinea
  • Zygogynum longifolium (A.C.Sm.) Vink – New Guinea and Bismarck Archipelago
  • Zygogynum mackeei Vink – northern New Caledonia
  • Zygogynum megacarpum (A.C.Sm.) Vink – western New Guinea
  • Zygogynum montanum (Lauterb.) Vink – Papua New Guinea
  • Zygogynum oligocarpum (Schltr.) Vink – Papua New Guinea
  • Zygogynum oligostigma Vink – central New Caledonia
  • Zygogynum pachyanthum (A.C.Sm.) Vink – New Guinea
  • Zygogynum pancheri (Baill.) Vink – east-central and southeastern New Caledonia
  • Zygogynum pauciflorum (Baker f.) Vink – Mont Panié, northern New Caledonia
  • Zygogynum polyneurum (Diels) Vink – western New Guinea
  • Zygogynum pomiferum Baill. – northern and central New Caledonia
  • Zygogynum queenslandianum (Vink) Vink – northeastern Queensland
  • Zygogynum schlechteri (Guillaumin) Vink – southeastern New Caledonia
  • Zygogynum schramii Vink – western New Guinea
  • Zygogynum semecarpoides (F.Muell.) Vink – northeastern Queensland
  • Zygogynum sororium (Diels) Vink – Schrader Range, Papua New Guinea
  • Zygogynum staufferianum Vink – Papua New Guinea
  • Zygogynum stipitatum Baill. – northern and central New Caledonia
  • Zygogynum sylvestre (A.C.Sm.) Vink – New Guinea
  • Zygogynum tanyostigma Vink – Mont Panié, northern New Caledonia
  • Zygogynum tieghemii Vink – central and southeastern New Caledonia
  • Zygogynum umbellatum (Ridl.) Vink – New Guinea
  • Zygogynum vieillardii Baill. – central and southeastern New Caledonia
  • Zygogynum vinkii F.B.Sampson – central New Caledonia
  • Zygogynum whitmoreanum Vink – Solomon Islands

References

  1. 1 2 3 "Zygogynum Baill." Plants of the World Online, Kew Science. Accessed 24 April 2022.
  2. ↑ Vink, W. (1985). The Winteraceae of the Old World. V. Exospermum links Bubbia to Zygogynum. Blumea: Biodiversity, Evolution and Biogeography of Plants, 31(1), 39–55.
  3. ↑ Pellmyr, O.; Thien, L. B.; Bergström, G.; Groth, I. (1990). "Pollination of New Caledonian Winteraceae: Opportunistic shifts or parallel radiation with their pollinators?". Plant Systematics and Evolution. 173 (3–4): 143. doi:10.1007/BF00940859. S2CID 7894633.
  4. ↑ Kubitzki, Klaus (1993). Families and Genera of Vascular Plants. Vol. 2. Berlin: Springer Verlag. p. 637.


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