Genus Dendrobium section Aporum subsection Aporum
Genus Dendrobium sect . Aporum Blume, Tab. Pl. ]av. Orchid, in Clavis generum (1825). Type species: Dendrobium lobatum (Blume) Miq. (basionym: Aporum lobatum Blume).
Synonyms:
- Genus Aporum (Blume) Blume, Bijdr. (1825) 334. Type species: Aporum lobatum Blume.
- Genus Aporum sect. Aporopsis (Schltr.) Brieger in Schltr., Orchideen, ed. 3, 1 (1981) 673, nom. invalid. Type species: Aporum macfarlanei (F.Muell.) Rauschert (basionym: Dendrobium macfarlanei F.Muell.).
- Genus Aporum sect. Crumenata (Pfitzer) Brieger in Schltr., Orchideen, ed. 3, 1 (1981) 671. Type species: Aporum crumenatum (Sw.) Brieger (basionym: Dendrobium crumenatum Sw.).
- Genus Aporum sect. Linearifolia Brieger in Schltr., Orchideen ed. 3, 1(1981) 674. Type species: Aporum gracile (Blume) Brieger (basionym: Onychium gracile Blume).
- Genus Aporum sect. Macrostomium (Blume) Brieger in Schltr., Orchideen ed. 3, 1 (1981) 676. Type species: Aporum aloifolium (Blume) Brieger (basionym: Macrostomium aloifolium Blume).
- Genus Aporum sect. Strongyle (Lindl.) Brieger in Schltr., Orchideen,ed. 3, 1 (1981) 674. Type species: Aporum subulatum (Blume) Rauschert (basionym: Onychium subulatum Blume).
- Genus Dendrobium sect. Hemiphylla Kränzl. in Engl., Pflanzenr. IV. 50. II. B. 21 (1919) 201 Type species: Dendrobium aloifolium (Blume) Lindl. (basionym: Macrostomium aloifolium Blume).
- Genus Dendrobium sect. Holophylla Kränzl. in Engl., Pflanzenr. IV. 50. II. B. 21 (1910). 201 Type species: Dendrobium lobatum (Blume) Miq. (basionym: Aporum lobatum Blume).
- Genus Ditulima Raf., Fl. Tellur. 4 (1836, publ. 1838) 41. Type species: Ditulima anceps (Sw.) Raf. (basionym: Dendrobium anceps Sw.).
- Genus Macrostomium (Blume) Blume, Bijdr. (1825) 335. Type species: Macrostomium aloifolium Blume.
- Genus Orthoglottis Breda, Gen. Sp. Orchid. Asclep., fasc. 4, (1830) s.n. Type species: Orthoglottis imbricata Breda.
- Genus Schismoceras Presl, Rel. Haenk. 1 (1827) 96, t. 13, fig. 2. Type species: Schismoceras disticha Presl.
Rhizome short, roots not brown. Stems short to much elongated and slender, branched or not, not fleshy, many-leaved, often in the upper part with scale-like leaves only. Leaves sheathing at the base, usually overlapping, glabrous, thick coriaceous, bilaterally flattened with sharp edges. Inflorescences very short, 1-flowered, often in small clusters. arising laterally from the stem, or, if a scale-leaved upper part of the stem is present, only on that part of the stem.Flowers small to very small, lasting at least several days, often rather fleshy. Mentum well-developed, often tubular in apical part. Lip not mobile.
About 60 species: India, continental Southeast Asia, Malaysia, Singapore, Brunei, the Philippines, Indonesia, Papua New Guinea; New Guinea 2 species.
Epiphytes in lowland forest.
- Family Orchidaceae
- Subfamily Epidendroideae
- Tribe Dendrobieae
- Subtribe Dendrobiinae
- Genus Dendrobium
- Section Aporum
- Lavarack, B., W. Harris & G. Stocker. 2000. Dendrobium and its relatives. Timber Press, Portland, Oregon.
Dendrobium section Aporum subsection Aporum is the only Dendrobium subsection in which the plants possess laterally flattened leaves. Subsection Aporum can be recognised by the sharp edges of the leaves.
The superficially resembling genus Oxystophyllum has also laterally flattened leaves. That was formerly treated as a section of Dendrobium but was recently recognised as belonging in the Eriinae. It can easily be distinguished by the brown, thin roots, and the conical wart.on the underside of the lip near the apex
In New Guinea Dendrobium section Aporum subsection Aporum contains the following 2 species:
Dendrobium aloifolium
Dendrobium inconspicuum
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Genus Dendrobium section Aporum subsection Aporum
Dendrobium aloifolium (Blume) Rchb.f., habit detail, photo P. O'Byrne, based on O'Byrne D546