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Renanthera caloptera

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., Phytotaxa 161 (2014) 68

Type: Veitch cult. (Macfarlane) s.n. (holo W)

Synonyms:

  • Saccolabium calopterum Rchb.f., Gard. Chron. (1882, II) 520
  • Ascoglossum calopterum (Rchb.f.) Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 975
  • Cleisostoma cryptochilum F.Muell., S. Sci. Rec., n.s., 1 (1885) 91
    - Type: Chalmers s.n. (SE New Guinea)
  • Saccolabium schleinitzianum Kraenzl., Bot. Jahrb. Syst. 7 (1886) 440
    - Type: Naumann s.n. (New Guinea, Mc Cluer Bay)
  • Saccolabium purpureum J.J.Sm., Bull. Inst. Bot. Buitenzorg 7 (1900) 4
    - Type: J.J. Smith s.n. (Ambon, Hutu Mortetu) (holo BO)

Basionym: Saccolabium calopterum

A large epiphytic herb. Stems erect or pendent, often horizontal in the apical part, up to 50 by 1.5 cm, leafy in the apical part. Leaves coriaceous, alternate, strap-like, up to 25 by 2.5 cm, unequally bilobed at the apex, articulated to a 4 cm long basal sheath. Inflorescence lateral, branching, erect, 35-60 cm long, the branches 4-7-flowered, the flowers opening in succession, with 2 or 3 open at a time; peduncle terete, 20-35 cm long. Floral bracts ovate-triangular, subacute, 0.2-0.3 cm long. Pedicel and ovary 1.3-1.8 cm long. Sepals and petals reflexed. Median sepal elliptic-spathulate, obtuse, 1.4 by 0.5 cm. Lateral sepals spathulate, obtuse, 1.6 by 0.6-0.9 cm, concealing the spur. Petals elliptic, obtuse, 1.2 by 0.5 cm. Lip hinged to the base of the column, 3-lobed, 1.2 cm long, the lateral lobes erect, oblong-rounded, 0.2 by 0.2 cm, attached to the column, the mid-lobe short, ligulate, porrect, spurred, the spur cylindrical-globose, 0.6-0.9 cm long. Column 0.4-0.5 cm long. (After Lewis and Cribb, 1991).


Leaves dark green and sometimes mottled purple on the underside. Peduncle green flushed with purple. Flowers vivid purple occasionally with an orange or pink lip and spur.

Epiphyte in montane forest. Altitude 80-600 m.

Malesia (Moluccas, New Guinea, The Philippines), Solomon Is.

Papua (Indonesia); Papua New Guinea. See map

distribution in New Guinea

Intermediate growing epiphyte.

October.

  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Vandeae
  • Subtribe Aeridinae
  • Genus Renanthera
  • Species Renanthera caloptera
  • Smith, J.J., Icon. Bogor. 2 (1903) 115, t. 123A, as Saccolabium purpureum J.J.Sm.
  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 343, fig. 1324
  • Ames & Quisumb., Philipp. J. Sci. 59 (1936) 8, pl. 1:12-13; 5:1-10
  • Lewis, B.A. & P.J. Cribb, Orchids of the Solomon Islands and Bougainville (1991) 274, fig. 73, pl. 16F
  • O'Byrne, P., Lowland Orchid. Papua New Guinea (1994) 490, fig., pl.

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Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., flower, photo P. Jongejan, based on Jongejan 1461

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., habit, photo P. Jongejan, based on Jongejan 1461, from Papua New Guinea

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., inflorescence, partial, photo E.F. de Vogel, from Port Moresby cult.

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., flowers, various views, photo E.F. de Vogel, from Port Moresby cult.

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., inflorescence, photo E.F. de Vogel, Leiden cult. 20080756 (de Vogel) from West New Britain, Gasmata

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., flowers, various views, photo E.F. de Vogel, Leiden cult. 20080756 (de Vogel) from West New Britain, Gasmata

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., flowers, various views, photo E.F. de Vogel, Leiden cult. 20080756 (de Vogel) from West New Britain, Gasmata

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., flower, oblique front view, photo E.F. de Vogel, Leiden cult. 20080756 (de Vogel) from West New Britain, Gasmata

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., inflorescence, cult. Jon Cara, photo Jon Cara

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., flower, front view, cult. Jon Cara, photo Jon Cara

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., flower, oblique front view, cult. Jon Cara, photo Jon Cara

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., flower, oblique lateral view, cult. Jon Cara, photo Jon Cara

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., habit, drawing Marasigan, Aguilar, Castelo, and Ico in Philipp. J. Sci. 59 (1936) pl. 5, fig. 1 (as Ascoglossum calopterum (Rchb.f.) Schltr.)

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., from Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 343, fig. 1324 (as Ascoglossum calopterum (Rchb.f.) Schltr.)

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., floral analysis, drawing Marasigan, Aguilar, Castelo, and Ico in Philipp. J. Sci. 59 (1936) pl. 5, fig. 2-10 (as Ascoglossum calopterum (Rchb.f.) Schltr.)

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., drawing J.J. Smith, based on L. Schmid cult. s.n. (ex Halmahera) (as Ascoglossum calopterum (Rchb.f.) Schltr.)

Renanthera caloptera

Renanthera caloptera (Rchb.f.) Kochyan & Schuit., drawing J.J. Smith (as Ascoglossum purpureum (J.J.Sm.) Schltr.)