Appendicula palustris

Appendicula palustris

Appendicula palustris J.J.Sm., Bull. Dép. Agric. Indes Néerl. 19 (1908) 4

Type: Versteeg 1157 (holo BO 2x; iso L)

Synonyms:

  • Podochilus palustris (J.J.Sm.) Ridl., Trans. Linn. Soc. London, Bot. 9 (1916) 206
    - Type: Versteeg 1157 (holo BO 2x; iso L)

Terrestrial. Stems erect, elongated, 70-80 cm long, internodes 1.5-2.5 cm long. Leaves patent, lanceolate, narrowed at the base, nerves 7, when dried underneath prominent, 8-11 by 1.5-2 cm wide, towards the apex acuminate and minutely serrulate or crenulate, at the apex bidentate with a mucro as long as or slightly longer than the teeth; leaf-sheaths tubular, slightly longer than the internodes. Inflorescences terminal and lateral, pendulous, sometimes few-branched, densely many-flowered, 6.5-8.5 cm long, entirely covered by the tubular peduncle sheaths. Floral bracts reflexed, just above the base incurved-patent, triangular-ovate, usually obtuse, apiculate, strongly concave, 5-nerved, 0.3 cm long. Flowers 0.65 cm across. Median sepal ovate, subacute, 3-nerved, 0.38 by 0.23 cm. Lateral sepals obliquely triangular, subacute, 3-nerved, keeled, 0.33 at the base 0.44 cm wide, decurrent on the column-foot; mentum long, broadly obtuse, parallel with the ovary. Petals spathulate, oblong, obtuse, 1-(weakly 3-)nerved, 0.36 by 0.15 cm. Lip parallel with the column-foot, erect, at the apex patent, when flattened broadly pandurate-spathulate, in outline obovate, 0.55 cm long, blade broader than the suborbicular, concave claw, suborbicular, 0.32 cm wide, convex, more or less retuse, in the sinus with a minute lobule, just below the apex with an erect, cylindrical-conical callus, inside with two keels terminating in the middle of the blade, blade at the base extended into a horseshoe-shaped, concave, carnose, slightly notched appendage that is much narrower than the claw and about as long. Column very short, to the apex of the rostellum 0.18 cm long; auricles short, obtuse. Anther cordate, 0.1 cm long, acuminate, obtuse or sometimes almost 3-denticulate, dorsally gibbose. Pollinia 6, clavate, stipes two, lanceolate, narrowed at the base. Rostellum triangular, bidentate. Stigma transversely oblong. Column-foot parallel with the ovary, at the apex incurved, 0.3 cm long. 0vary pedicellate, 6-grooved, 0.5 cm long. (After Smith, 1909).

Note: Very closely related to Appendicula pendula.


Flower yellowish white, lip white. Column in front purple, at the back spotted purple.

Terrestrial in lowland forest. Altitude 0-900 m.

Malesia (New Guinea, endemic).

Papua (Indonesia). See map

distribution in New Guinea

Warm growing terrestrial, keep in shade.

May, June, October.

  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Podochileae
  • Subtribe Podochilinae
  • Genus Appendicula
  • Section Chaunodesme
  • Species Appendicula palustris
  • Smith, J.J., Nova Guinea 8, 1 (1909) 116, t. 39, fig. 130
  • Smith, J.J., Nova Guinea 12, 1 (1913) 100
  • Smith, J.J., Nova Guinea 18, 1 (1935) 33

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Appendicula palustris

overview picture

Appendicula palustris

Appendicula palustris J.J.Sm., drawing J.J. Smith, from Pulle 274

Appendicula palustris

Appendicula palustris J.J.Sm., drawing J.J. Smith, from Rachmat 516

Appendicula palustris

Appendicula palustris J.J.Sm., drawing J.J. Smith, from Versteeg 1157

Appendicula palustris

Appendicula palustris J.J.Sm., drawing J.J. Smith, from von Römer 947

Appendicula palustris

Appendicula palustris J.J.Sm., drawing J.J. Smith, from Rachmat 516

Appendicula palustris

Appendicula palustris J.J.Sm., drawing J.J. Smith, from Pulle 274

Appendicula palustris

Appendicula palustris J.J.Sm., herbarium sheet, Versteeg 1157, isotype specimen (L)