Current Genus: Genus Dendrobium section Calyptrochilus
Next Taxon: Genus Dendrobium section Conostalix
Dendrobium limpidum subsp. daunceyae
Dendrobium limpidum subsp. daunceyae Ormerod, Checkl. Papuasian Orch. (2017) 221, 483 (fig.).
Type: Brass 22981 (holo AMES).
Synonyms:
Epiphytes. Roots terete, slender, to 0.06 cm thick. Stems slender, narrowly club-shaped, weakly flexuous, leafy throughout, 3.2-27.0 by 0.05-0.50 cm when dry, unbranched to occasionally branched. Leaves oblong-lanceolate, 1.1-2.5 by 0.3-0.6 cm; margins minutely dentate; apex unequally 2-aristate, mucronate. Inflorescences pseudoterminal, 0.8 cm long; peduncle 0.3-0.4 cm long; rachis densely 6-8-flowered, 0.4-0.5 cm long; floral bracts ovate to rhombic, 0.35 by 0.24 cm, with acute apex, 3-nerved. Pedicel and ovary narrowly club-shaped, 1.1 cm long. Median sepal elliptic, 0.4 by 0.21 cm; outside possibly minutely scattered papillose; apex subacute; 3-nerved. Lateral sepals oblong, joined basally for c. 0.35 cm, free part ovate, 0.47 (along upper margin) or 1.08-1.1 (along lower margin) by 0.32 cm; apex acute; 5-nerved, midnerve low keeled in upper half, mentum oblong, c. 0.65 cm long, with subacute apex. Petals oblong-oblanceolate, 0.375 by 0.175 cm; upper margin minutely erose; apex subacute; 3-nerved. Lip subpandurate, ligulate-oblong, c. 0.92 by 0.3 cm, median with a forward-pointing transverse lamina; hypochile oblong, 0.4 by 0.21-0.3 cm, 3-nerved; epichile oblong-oblanceolate, 0.52 by 0.29 cm, upper half minutely erose to dentate, with subacute apex. Column semiterete, c. 0.15 cm long; column foot c. 0.6-0.65 cm long.
(after Ormerod, 2017)).
Flowers violet purple, vivid purple or purple with lower part of lip orange-red.
Epiphytes low on trunks in mossy forest, also frequent on mossy undergrowth of Podocarpus trees in Oak forest. Altitude 1550-1800 m.
Distribution: Malesia, Papua New Guinea, endemic.
Papua New Guinea (Milne Bay Prov.).
Intermediate growing epiphyte.
June, July.
- Family Orchidaceae
- Subfamily Epidendroideae
- Tribe Dendrobieae
- Subtribe Dendrobiinae
- Genus Dendrobium
- Section Calyptrochilus
- Species Dendrobium kanchianum
Dendrobium limpidum subsp. daunceyae differs from Dendrobium limpidum subsp. limpidum in the parallel-sided, narrower, 0.3-0.6 cm wide leaves (versus obliquely ovate, 0.7-1 cm wide), and the 3-nerved petals (versus 1-nerved).
Dendrobium limpidum subsp. daunceyae is named after Elizabeth (Liz) A. Dauncey, who wrote a revision of Dendrobium section Pedilonum.
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Dendrobium limpidum subsp. daunceyae
Dendrobium limpidum subsp. daunceyae Ormerod, drawing by Paul Ormerod in Checkl. Papuasian Orch. (2017) 221, 483 (fig.).