Orchid Information - Genus Dendrobium section Aporum subsection Aporum

Dendrobium sect. Aporum Blume, Tab. Pl. ]av. Orchid, in Clavis generum (1825). Type species: Dendrobium lobatum (Blume) Miq. (basionym: Aporum lobatum Blume).

Synonyms:

• Genus Aporopsis (Schltr.) M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 485. Type species: Dendrobium macfarlanei F.Muell.
• 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 Bolbodium (Lindl.) Brieger in Schltr., Orchideen ed. 3, 1 (1981) 721 as 'Bolbidium' (not Bolbidium (Lindl.) Lindl.). Type species: Bolbodium pusillum (Blume) Rauschert (basionym: Desmotrichum pusillum Blume).
• Genus Ceraia Lour., Fl. Cochinch. 2 (1790) 518.Type species: Ceraia simplicissima Lour.
• Genus Dendrobium sect . Ampullaria Pfitzer in Engl. & Prantl, Nat. Pflanzenfam. II, 6 (1889) 174. Type species: Dendrobium planibulbe Lindll.
• Genus Dendrobium sect . Aporum Blume, Tab. Pl. ]av. Orchid, in Clavis generum (1825). Type species: Dendrobium lobatum (Blume) Miq. (basionym: Aporum lobatum Blume).
• Genus Dendrobium subgen. Aporum (Blume) Kränzl. in Engl., Pflanzenr. IV. 50. II. B. 21 (1910) 201. Type species: Dendrobium lobatum (Blume) Miq. (basionym: Aporum lobatum Blume).
• Genus Dendrobium sect. Bolbodium Lindl., Paxton's Fl. Gard. 1 (1851). 136 Type species: Dendrobium pusillum (Blume) Lindl., nom. illeg., non D.Don (basionym: Desmotrichum pusillum Blume).
• Genus Dendrobium. subgen. Bolbodium (Lindl.) Kränzl. in Engl., Pflanzenr. IV, 50. II. B. 21 (1910) 26. Type species: Dendrobium pusillum (Blume) Lindl., nom. illeg., non D.Don (basionym: Desmotrichum pusillum Blume ).
• Genus Dendrobium sect. Clavatae Ridl., J Linn. Soc. Bot. 32 (1896). 232 (1896). Type species: Dendrobium clavator Ridl.
• Genus Dendrobium sect. Crumenata Pfitzer in Engl. & Prantl, Nat. Pflanzenfam. II, 6 (1889) 174. Type species: Dendrobium crumenatum Sw.
• Genus Dendrobium subgen. Crumenata (Pfitzer) Kränzl. in Engl., Pflanzenr. IV. 50. II. B. 21 224(1910). Type species: Dendrobium crumenatum Sw.
• 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 Dendrobium sect. Macrostomium Blume, Tab. Pl. ]av. Orchid., in Clavis generum (1825) . Type species: Dendrobium aloifolium (Blume) Lindl. (basionym: Macrostomium aloifolium Blume).
• Genus Dendrobium sect. Strongyle Lindl., Paxton's Fl. Gard. 1 (1851). 134 Type species: Dendrobium subulatum (Blume) Lindl. (basionym: Onychium subulatum Blume).
• Genus Dendrobium sect. Virgatae Hook.f., Fl. Brit. lnd. 5 (1890) 711. Type species: Dendrobium crumenatum Sw.
• Genus Dendrobium sect . Rhopalanthe Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1912) 449. Type species: Dendrobium crumenatum Sw.
• Genus Dendrobium sect. Rhopalanthe subsect. Aporopsis Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 565 (1912 ). Type species: Dendrobium macfarlanei F.Muell.
• Genus Dendrobium subgen. Rhopalobium Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1912) 441. Type species: Dendrobium crumenatum Sw.
• Genus Dendrobium subgen. Strongyle (Lindl.) Kränzl. in Engl., Pflanzenr. IV. 50. II. B. 21 (1910). 220 Type species: Dendrobium subulatum (Blume) Lindl. (basionym: 0nychium subulatum Blume).
• Genus Dendrobium subgen. Xerobium Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1912) 441. Type species: Dendrobium lobatum (Blume) Miq. (basionym: Apounm 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.

Roots not brown. Rhizome short. Stems short to much elongated and slender, those of subsection Crumenata/Aporopsis often with lowermost internodes conspicuously swollen and leafless, entirely or only in upper part branched or not, usually not fleshy, many-leaved, often in upper part with scale-like leaves only. Leaves sheathing at the base, overlapping or not, glabrous, either thick coriaceous and dorsiventrally flattened (subsection Crumenata/Aporopsis), laterally flattened with sharp edges (subsection Aporum), or laterally flattened with rounded edges and thick coriaceous, very fleshy, often subterete (subsection Strongyle). Inflorescences very short small fascicles, usually 1-flowered, arising laterally from the slender part of stem, or, if this is present, only from the scale-leaved upper parts. Flowers very small to rather large, thin-textured or rather fleshy, lasting less than 1 day or when rather fleshy several days. Mentum well-developed, either or not tubular in apical part. Lip not mobile, apically on the column foot and often somewhatadnate to that. Rostellum usually with a soft but distinct viscidium.

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