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Pomatocalpa macphersonii

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, Queensland Naturalist 16 (1958) 27

Synonyms:

  • Saccolabium macphersonii F.Muell., Fragm. 7 (1870) 96
    - Type: Dallachy s.n. (Australia, Q, Rockingham) (holo MEL; iso K)
  • Sarcanthus macphersonii (F.Muell.) Rupp, Victorian Naturalist 57 (1941) 219
  • Sarcochilus macphersonii (F.Muell.) F.Muell., Fragm. 8 (1874) 248
  • Cleisostoma macphersonii (F.Muell.) Benth., Fl. Austral. 6 (1873) 297
  • Cleisostoma incurvum J.J.Sm., Bull. Jard. Bot. Buitenzorg, sér. 2, 2 (1911) 20
    - Type: Bogor cult. (Exp. Lorentz, Djibdja 628) s.n. (Noord River) (holo BO; iso L)
  • Pomatocalpa incurvum (J.J.Sm.) J.J.Sm., Natuurk. Tijdschr. Ned.-Indië 72 (1912) 104
  • Pomatocalpa potamophilum Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 988
    - Type: Schlechter 16312 (B, lost; BO, E, K, L, NSW); 18287 (B, lost; BO, E, K, L 2x, NSW)

Basionym: Saccolabium macphersonii

Stem short. Leaves few, widely patent, ligulate, subfalcate-oblique, half-twisted at the base, at the apex broadly obtuse, rounded-bilobed, undulate, mid-rib grooved above, keeled below, above on either side of mid-rib convex, 11 cm long, 2.35 cm wide; sheaths tubular, strongly laterally flattened, short. Inflorescences pointing downwards, unbranched, c. 11-flowered, c. 3.4 cm long (or more); peduncle 1.2 cm long with a few very small scales; rachis angular. Floral bracts appressed, very small, triangular, much shorter than the ovary. Flowers rather small, 0.83 cm wide. Sepals and petals incurved, fleshy. Median sepal almost spathulate-oblong, broadly obtuse, 0.45 by 0.24 cm. Lateral sepals oblique obovate, at the base slightly contracted, broadly obtuse, 0.43 by 0.27 cm. Petals spathulate-oblong, slightly falcate, broadly obtuse, 0.4 by 0.16 cm. Lip adnate to the column-foot, spurred, 3-lobed; lateral lobes erect, about as long as the column, with the upper margin making an acute angle with the column, front margins incurved, at the base connected through a cushion-like swelling, at the apex rectangular; mid-lobe recurved, subreniform-semiorbicular, broadly obtuse, fleshy, with a cushion-like swelling at the base and a longitudinal basal groove, 0.15 by 0.28 cm; spur rather large, making a straight angle with the ovary, slightly obovoid, rounded, dorsally slightly flattened, to the apex of the ovary 0.4 cm long, 0.23 cm wide, dorsal wall inside with an erect, triangular, truncate, 3-crenulate, glabrous lamella. Column short, 0.23 cm long; rostellum recurved; stigma deeply concave, transversely elliptic. Anther cucullate, shortly and obtuse rostrate, 0.13 cm wide; pollinia 4, unequal, arranged into two obliquely elliptic-triangular masses; stipe linear; viscidium oblong, the whole pollinarium 0.13 cm long. Ovary straight, 6-grooved, 0.37 cm long. (After Smith, 1913)


Leaves green. Sepals and petals yellow, spotted purple on both sides; lip with white lateral lobes, mid-lobe pale yellowish, spur pale yellowish with brown spots and dots; column pale yellow, at the base with a brown ring; anther pale yellow, pollinia yellow. Ovary green.

Epiphyte in lowland and lower montane forest, also on isolated trees; 0 to 1000 m.

Malesia (New Guinea), Australia, Solomon Islands, Fiji.

Papua (Indonesia); Papua New Guinea. See map

distribution map

Warm growing epiphyte.

April, May, June, July, August, September, November.

  • Smith, J.J., Nova Guinea 12, 1 (1913) 101, t. 28, fig. 86, as Pomatocalpa incurvum (J.J.Sm.) J.J.Sm.
  • Smith, J.J., Nova Guinea 12, 4 (1916) 462, as Pomatocalpa incurvum (J.J.Sm.) J.J.Sm.
  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 348, fig. 1342, as Pomatocalpa potamophilum Schltr.
  • Dockrill, A. W., Austral. Indig. Orchids 1 (1969) 774, fig.
  • O'Byrne, P., Lowland Orchid. Papua New Guinea (1994) 514, fig.
  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Vandeae
  • Subtribe Aeridinae
  • Genus Pomatocalpa
  • Species Pomatocalpa macphersonii

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Pomatocalpa macphersonii

overview picture

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, plant habit, photo E.F. de Vogel, based on Leiden cult. 20030982

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, inflorescence, photo E.F. de Vogel, based on Leiden cult. 20030982

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, flower, oblique lateral vie3w, photo E.F. de Vogel, based on Leiden cult. 20030982

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, plant habit, photo E.F. de Vogel, based on Leiden cult. 20030772

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, flower, oblique lateral view, photo E.F. de Vogel, based on Leiden cult. 20030772

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, flower, front view, photo E.F. de Vogel, based on Leiden cult. 20030772

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, plant habit, photo E.F. de Vogel, based on Port Moresby cult.

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, inflorescence, photo E.F. de Vogel, based on Port Moresby cult.

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, flowers, photo E.F. de Vogel, based on Port Moresby cult.

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, habit (in situ), photo P.J. Cribb, from Papua (Indonesia), Biak

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, inflorescence, photo P.J. Cribb, from Papua (Indonesia), Biak

Pomatocalpa macphersonii

Pomatocalpa incurvum (J.J.Sm.) J.J.Sm., lip longitudinal section, drawing J.J. Smith, from Gjellerup 615

Pomatocalpa macphersonii

Pomatocalpa incurvum (J.J.Sm.) J.J.Sm., floral analysis, drawing J.J. Smith, from Djibdja 628

Pomatocalpa macphersonii

Pomatocalpa incurvum (J.J.Sm.) J.J.Sm., floral analysis, drawing J.J. Smith, from Janowsky 558

Pomatocalpa macphersonii

Pomatocalpa incurvum (J.J.Sm.) J.J.Sm., lip longitudinal section, drawing J.J. Smith, from Janowsky 558

Pomatocalpa macphersonii

Pomatocalpa incurvum (J.J.Sm.) J.J.Sm., floral analysis, drawing J.J. Smith, from Gjellerup 615

Pomatocalpa macphersonii

Pomatocalpa potamophilum Schltr., drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 348, fig. 1342

Pomatocalpa macphersonii

Cleisostoma incurvum J.J.Sm., herbarium sheet, Bogor cult. (Exp. Lorentz, Djibdja 628) s.n. (isotype specimen L)

Pomatocalpa macphersonii

Cleisostoma incurvum J.J.Sm., herbarium sheet, Bogor cult. (Exp. Lorentz, Djibdja 628) s.n. (Noord stream) (holotype specimen BO)

Pomatocalpa macphersonii

Pomatocalpa potamophilum Schltr., herbarium sheet, Schlechter 18287 (syntype specimen L)

Pomatocalpa macphersonii

Pomatocalpa potamophilum Schltr., herbarium sheet, Schlechter 18287 (syntype specimen L)

Pomatocalpa macphersonii

Pomatocalpa potamophilum Schltr., herbarium sheet, Schlechter 16312 (syntype specimen L)

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, plant in situ, photo John Cara, from Australia, Milaa Milaa

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, plant in situ, photo John Cara, from Australia, Mossman

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, photo John Cara, plant habit, John Cara cult., from Australia

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, photo John Cara, inflorescencet, John Cara cult., from Australia

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, photo John Cara, flower, front view John Cara cult., from Australia

Pomatocalpa macphersonii

Pomatocalpa macphersonii (F.Muell.) P.F.Hunt, photo John Cara, flower, front view, John Cara cult., from Australia