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Styloglossum hololeucum

Styloglossum hololeucum

Styloglossum hololeucum (Rchb.f.) T.Yukawa & P.J.Cribb, Bull. Natl. Mus. Nat. Sci., ser. B, 40(4) (2014) 148

Type: Seemann 607 (holo W 42047; iso K)


  • Calanthe hololeuca Rchb.f. in Seem., Fl. Vitiensis (1868) 298
  • Calanthe neohibernica Schltr. in K.Schum. & Lauterb., Nachtr. Fl. Deutsch. Schutzgeb. Südsee (1905) 142
    - Type: Schlechter 14707 (holo B, lost)
  • Calanthe vaupeliana Kraenzl., Notizbl. Bot. Gart. Berlin-Dahlem 5 (1909) 111
    - Type: Vaupel 358 (holo B, lost; iso AMES, K)
  • Calanthe neocaledonica Rendle, J. Linn. Soc., Bot. 45 (1921) 251, pl. 13 fig. 8
    - Type: Compton 1409 (syn BM); 1609 (syn BM)

Roots elliptic, filiform, flexuose, tomentose. Stem 3-4-leaved. Leaves erect, linear-lanceolate, 60 by 2.5 cm, gradually narrowing to the petiole, plicate, apex acuminate. Inflorescences racemose, erect, 45 cm long; rachis 7 cm long, rather densely several to many-flowered. Floral bracts lanceolate, longer than the ovary, apex acuminate. Pedicel and ovary 1 cm long, clavate. Dorsal sepal lanceolate-oblong, 0.9 cm long, apex acuminate. Lateral sepals obliquely lanceolate-oblong, 0.9 cm long, slightly narrower than the median sepal, apex acuminate. Petals obliquely lanceolate, somewhat widened in the middle along the posterior margin, 0.8 cm long, apex acuminate. Lip 3-lobed, clawed, spurred, 0.8 by 0.4 cm including the 0.3 cm long, linear claw, which is provided with two longitudinal ridges; lateral lobes small, obliquely ovate-lanceolate, acute, mid-lobe much larger, oblong, shortly acuminate; spur subcylindric, 0.4 cm long, acute. Column short, along its margins adnate to the claw of the lip. Anther ovate, in front acuminate.
(After Schlechter, 1905, as C. neohibernica Schltr.).

Flower pure white.

Terrestrial in leaf-litter in hill forest. Altitude 600 m.

New Guinea, Vanuatu, New Caledonia, Fiji, Samoa, Tonga, Horne Islands.

Papua New Guinea. See map

distribution in New Guinea

Warm-intermediate growing terrestrial, keep in shade.


  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Undetermined
  • Subtribe Collabiinae
  • Genus Styloglossum
  • Species Styloglossum hololeucum
  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 1 (1912) 387, as Calanthe neohibernica Schltr.
  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 136, fig. 512, as Calanthe neohibernica Schltr.
  • Lewis, B.A. & P.J. Cribb, Orchids of the Solomon Islands and Bougainville (1991) 71, fig. 13M-O, pl. 4B

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Styloglossum hololeucum

Styloglossum hololeucum (Rchb.f.) T.Yukawa & P.J.Cribb (as Calanthe neohibernica Schltr.), from Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 136, fig. 512

Styloglossum hololeucum

Styloglossum hololeucum (Rchb.f.) T.Yukawa & P.J.Cribb (as Calanthe hololeuca Rchb.f.), herbarium sheet, Seemann 607, isotype (K)