Genus Dendrobium section Aporum subsection Strongyle

Genus Dendrobium section Aporum subsection Strongyle

Dendrobium section Strongyle Lindl., Paxton's Fl. Gard. 1 (1850-51) sub t. 27.

Synonyms:

  • Genus Dendrobium subgen. Strongyle (Lindl.) Kr√§nzl. in Engl., Pflanzenr. IV. 50. II. B. 21 (1910). 220. Type species: Dendrobium subulatum (Blume) Lindl. (basionym: 0nychium subulatum Blume).

Rhizome short, roots (unlike sect. Oxystophyllum) not brown. Stems (much) elongated and slender, usually not branched, not fleshy, many-leaved. Leaves sheathing at the base, not overlapping, glabrous, thick coriaceous, very fleshy, often subterete, bilaterally flattened with rounded edges (unlike sect. Aporum and sect. Oxystophyllum). Inflorescences arising laterally or subterminally from the stem, mainly in upper part, very short, 1-flowered, often in small fascicles. Flowers medium-sized, lasting at most 2-3 days, thin-textured, usually white or at least with pale colours. Mentum well-developed, not tubular in apical part. Lip not mobile.


Burma, Thailand, Taiwan, Malaysia, the Philippines, Indonesia, Papua New Guinea. About 20 species; in New Guinea only one species (Dendrobium sphenochilum).

Epiphytes in lowland forest.

  • Lavarack, B., W. Harris & G. Stocker. 2000. Dendrobium and its relatives. Timber Press, Portland, Oregon.

Dendrobium section Aporum subsection Strongyle has much in common with subsections Aporum and Crumenata. The plants have laterally flattened leaves, but, unlike in sect. Aporum, these are quite thick, with rounded (not sharp) edges, appearing almost subterete, while unlike in subsect. Crumenata the stems are not at all swollen at the base.

In New Guinea Dendrobium section Aporum subsection Strongyle contains the following species:

Dendrobium sphenochilum



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Genus Dendrobium section Aporum subsection Strongyle

Dendrobium sphenochilum F.Muell. & Kraenzl., habit, photo N.E.G. Cruttwell, based on Cruttwell (6/72, PNG, Milne Bay Prov., Biman)

Genus Dendrobium section Aporum subsection Strongyle

Dendrobium sphenochilum F.Muell. & Kraenzl., habit detail, photo P. O'Byrne, based on O'Byrne D545