Styloglossum versteegii

Styloglossum versteegii

Styloglossum versteegii (J.J.Sm.) T.Yukawa & P.J.Cribb, Bull. Natl. Mus. Nat. Sci., ser. B, 40(4) (2014) 150

Type: Pulle (Versteeg) 2485 (holo BO; iso L)

Synonyms:

  • Calanthe versteegii J.J.Sm., Bull. Jard. Bot. Buitenzorg, sér. 2, 13 (1914) 55
  • Giulianettia disticha Ridl., Trans. Linn. Soc. London, Bot. 9 (1916) 201
    - Type: Kloss s.n. (Camp 12 to 13, 10500 to 11000 ft.) (holo BM)
  • Calanthe arundinoides J.J.Sm., Nova Guinea 14 (1929) 356, pl. 47, 16
    - Type: Doorman 2 (not BO)
  • Calanthe aurantimacula P.Royen, Alp. Fl. New Guinea 2 (1979) 137, fig. 57
    - Type: Brass & Meyer Drees 9908 (holo L)

Terrestrial herb up to 25 cm high, erect or slightly decumbent. Stem elongate, sheathed in lower half, leafy in top half, 6-13 cm long. Leaves distichous; blade patent to spreading patent, subcoriaceous, often conduplicate, apical margin denticulate, glabrous, ovate-linear or linear, 3-9 by 0.3-0.5 cm, obtuse, base narrowly cuneate, midrib grooved above, prominent below; sheaths conduplicate, ribbed, often with crenulate margins. Inflorescences 1 or rarely 2, 1-3-flowered, up to 6 cm long. Peduncle glabrous, 1-3 cm long. Floral bracts persistent, lanceolate, acute or acuminate, margin minutely crenulate, 1.5-2.0 cm long. Pedicel with ovary l cm long, glabrous. Median sepal elliptic or oblong, 1.0-1.5 by 0.3-0.7 cm, cuspidate. Lateral sepals 1.1-1.3 by 0.3-0.7 cm, obliquely ovate-oblong or ovate, mid-nerve keeled, often forming an apiculate tip. Petals 0.8-1.2 by 0.5-0.9 cm, elliptic-obovate, obtuse, often apiculate, sometimes slightly falcate. Lip subquadrate to suborbicular when spread, 0.5-0.6 by 0.3-0.5 cm, in natural position apical margins often inrolled to give a triangular point; callus in mouth of spur rounded, bilobed, variously developed depending upon maturity of the flower; spur short, conical, 0.5-0.8 cm long, rounded. Column 0.5-0.6 cm long. Anther ovoid, 0.1 cm across; pollinia 8, pyriform. (After Thomas, 1999).

Note: An unusual high altitude species with elongated stems and very narrow leaves.


Leaf sheaths reddish purple. Flowers greenish white, sometimes with orange or pink patch on the lip. Pollinia brownish yellow.

Terrestrial in upper montane forest in exposed positions. Altitude 3560 m.

Malesia (New Guinea, endemic).

Papua (Indonesia); Papua New Guinea. See map

distribution in New Guinea

Cool growing terrestrial, keep in light position.

January, February, April, July, September, October.

  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Undetermined
  • Subtribe Collabiinae
  • Genus Styloglossum
  • Species Styloglossum versteegii
  • Smith, J.J., Nova Guinea 12, 3 (1915) 206, t. 67, fig. 112
  • Smith, J.J., Nova Guinea 14, 3 (1929) 356
  • Royen, P. van, Alp. Fl. New Guinea 2 (1979) 132, fig. 55
  • Thomas, S., Blumea 44 (1999) 34, fig. 5

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Styloglossum versteegii

overview picture

Styloglossum versteegii

Styloglossum versteegii (J.J.Sm.) T.Yukawa & P.J.Cribb (as Calanthe arundinoides J.J.Sm.), drawing J.J. Smith, from Doorman 2

Styloglossum versteegii

Styloglossum versteegii (J.J.Sm.) T.Yukawa & P.J.Cribb (as Calanthe arundinoides J.J.Sm.), drawing J.J. Smith, from Doorman 2

Styloglossum versteegii

Styloglossum versteegii (J.J.Sm.) T.Yukawa & P.J.Cribb (as Calanthe versteegii J.J.Sm.), drawing J.J. Smith, from Pulle (Versteeg) 2485

Styloglossum versteegii

Styloglossum versteegii (J.J.Sm.) T.Yukawa & P.J.Cribb (as Calanthe versteegii J.J.Sm.), drawing J.J. Smith, from Pulle (Versteeg) 2485

Styloglossum versteegii

Styloglossum versteegii (J.J.Sm.) T.Yukawa & P.J.Cribb (as Calanthe aurantimacula P.Royen), herbarium sheet, Brass 9908, holotype specimen (L)

Styloglossum versteegii

Styloglossum versteegii (J.J.Sm.) T.Yukawa & P.J.Cribb (as Calanthe versteegii J.J.Sm.), herbarium sheet, Pulle 2485 (Versteeg), holotype specimen (BO)

Styloglossum versteegii

Styloglossum versteegii (J.J.Sm.) T.Yukawa & P.J.Cribb (as Calanthe versteegii J.J.Sm.), herbarium sheet, Versteeg 2485, isotype specimen (L)

Styloglossum versteegii

Styloglossum versteegii (J.J.Sm.) T.Yukawa & P.J.Cribb (as Calanthe versteegii J.J.Sm.), detail of herbarium sheet, Pulle 2485 (Versteeg), holotype specimen (BO)

Styloglossum versteegii

Styloglossum versteegii (J.J.Sm.) T.Yukawa & P.J.Cribb (as Giulianettia disticha Ridl.), herbarium sheet, holotype specimen (BM)