Family Orchidaceae Subfamily Epidendroideae Tribe Podochileae Subtribe Podochilinae
Podochilinae Benth. & Hook.f., Gen. Pl. 3 (1883) 463 (as ‘Podochileae’). Type genus: Podochilus Blume.
Synonyms:
- Eriinae Benth., J. Proc: Linn. Soc., Bot. 18 (1881) 287. Type genus: Eria Lindl.
Epiphytes, lithophytes, or sometimes terrestrials. Roots wiry; with root hairs. Rhizome creeping. Stems cane-like or pseudobulbs, well spaced or tufted, leafy throughout or leaves apical on the pseudobukb only; internodes 1 to many. Leaves 1 to many, conduplicate or rarely convolute, distichous or spirally arranged, leathery, sometimes laterally flattened and fleshy; leaf sheath articulated or not at the apex. lnflorescence axillary or terminal, sometimes from the rhizome, racemose, solitary or fasciculate, unbranched or rarely branched, rarely reduced to one or two flowers, glabrous to hairy, often the hairs stellate; floral bracts sometimes showy, glabrous or with indument. Flowers usually resupinate and not showy, with or without indument. Ovary terete to triangular in cross section. Median sepal free, rarely fused to the lateral sepals, spreading or not. Lateral sepals at the base oblique; mentum chin-like. Petals free, smaller than the sepals. Lip entire, 2- or 3-lobed, often concave; with or without callus; spur abbreviated or absent,. Column fleshy, usually not winged; column foot usually prominent, or absent; anther incumbent; stigma entire; pollinia eight or rarely six, four or two, equal or unequal in size, ovoid, clavate-ovoid, clavate or narrowly clavate, with a common caudicle or with short caudicles, viscidia 1 or 2, or absent. Fruit a capsule, sometimes globose.
(after Cribb & Ng, 2005).
Subtribe Podochilinae is distributed with 27 genera in Africa (only Stolzia) and in India, Sri Lanka, mainland Southeast Asia to China, Taiwan, Malesia, New Guinea, the southwest Pacific islands, and Australia.
- Family Orchidaceae
- Subfamily Epidendroideae
- Tribe Podochileae
- Subtribe Eriinae
- Blume, C.L, Bijdr. (1825).
- Blume, C.L., Cylindrolobus. Trichotosia. Museum Bot, Lugd.-Batav. 2 (1856) 182-185.
- Brieger, F.G. (1981). Dendrobiinae. In Rudlolf Schlechter, Die Orchideen, 3rd ed. (edit. F.C. Brieger, R. Maatsch & K. Senghas) (1981) 636-752.
- Chase, M.W., Cameron, K.M., Barrett, R.L. & Freudenstein, J.V. DNA data and Orchidaceae systematics: a new phylogenetic classification. In Orchid conservation (ed. K.W. Dixon, S.P Kell, R.L. Barrett, PJ Crib b) (2003) 69-89.
- Cribb, P.J. & Ng, Subtribe Eriinae in Pridgeon, A.M., P.J. Cribb, M.W. Chase & F.N. Rasmussen (edit.), Genera Orhidacearum 4, Epidendroideae (Part one) (2005) 529-596
- Comber, J. Orchids of Java. (1990)
- Clements, M.A. Molecular Phylogenetic Systematics in the Dendrobiinae (Orchidaceae), with emphasis on Dendrobium sect. Pedilonum. Telopea, 10 (2003) 247-298.
- Comber, J. Orchids of Java. (1990)
- Hooker, J. Dendrobium. Flora of British. India 5 (1890) 786.
- Kränzlin, F. Eria Lindl. sect. Lycastiformes n. sect., Bot. Jahrb. Syst. , Pflanzengesch., Pflanzengeogr 25 (1898) 606.
- Kraenzlin, F., Erieae Benth & Hook.f., Orchidaceae-Monandrae-Dendrobiinae II. In: A. Engler, Das Pflanzenreich, Heft 50A (1911)1-176.
- Kränzlin, F. Eria Lindl. sect. Tetradon. Vierteljahrschr. Naturforsch. Gesellsch. Zürich 74 (1929) 90.
- Leavitt, R.G. The genus Eria in the Philippine Islands. Philip. J. Science. Sect. C, Bot. 4 (1909) 201-245.
- Lindley, J.. Contributions to the orchidology of India no. II, J. Linn. Soc., Bot. 3 (1859) 46-55.
- Ng, Y P. Phylogenetic relationships in tribe Podochileae (Orchidaceae: Epidendroideae) based on combined evidence from molecular and morphological data. (2002). Ph.D. thesis, University of London.
- Pfitzer, E.H.H. Orchidaceae. Nat. Pflanzenf. (ed. A. Engler and K. Prantl) 2, 6 (1888 ) 175-176.
- Reichenbach, H.G.. Bonplandia 5 (1857 ) 55.
- Reichenbach, H.G. Ann. Bot. Syst. 6 (1861) 269.
- Reichenbach, H. G. Eria Lindl. Ann. Bot. Syst. 6 (1864) 266-279.
- Schlechter, R. Die Orchideen, ihre Beschreibung, Kultur nnd Züchtung(1914-1915).
- Seidenfaden, G. Orchid genera in Thailand X. Trichotosia Bl. and Eria Lindl. Opera Bot. 62 (1982) 1-157.
- Seidenfaden, G. A note on the section Cymboglossum Schltr. of Eria (Orchidaceae). Nordic J. Bot., 4 (1984) 39-45.
- Seidenfaden, G. and Wood, J.J.. The Orchids of Peninsular Malaysia and Singapore (1992).
Subtribe Podochilinae contains 27 genera, in New Guinea 13 genera (1 doubtful):
Genus Aeridostachya
Genus Appendicula
Genus Bambusifolia
Genus Bryobium
Genus Ceratostylis
Genus Cuneilabia
Genus Cylindrolobus
Genus Epiblastus
Genus Eria
Genus Mediocalcar
Genus Oxystophyllum
Genus Pinalia
Genus Strongyleria
(It is not certain that the genus Bambusifolia occurs in New Guinea).
ARTIFICIAL KEY TO THE GENERA OF SUBTRIBE PODOCHILINAE OF TRIBE PODOCHILEAE
1a. Pollinia 4 or 6 == 2.
1b. Pollinia 8, all equally large, or in 2 sizes == 7.
2a. Leaves bilaterally flattened, distichous with overlapping leaf bases == 3.
2b. Leaves dorsoventrally flattened, not with overlapping leaf bases == 4.
3a. Inflorescences lateral. Flowers more than 0.6 cm long == Oxystophyllum
3b. Inflorescences terminal. Flowers less than 0.4 cm long == Podochilus.
4a. Pollinia 4. Column foot curving upward. Lip sometimes cordate-sagittate == Podochilus.
4b. Pollinia 6. Column foot not curving upward. Lip never cordate-sagittate == 5.
4a. Rostellum concave. Anther inclined and resting on the rostellum, broadly cordate. Pollinia without caudicles, attached directly to the viscidium. Lip clawed, widened and 2-lobed, callus with a hairy furrow == Cyphochilus.
5b. Rostellum not concave. Anther erect, narrow. Pollinia caudiculate. Lip otherwise == 6.
6a. Bracts distichous, 2 x the length of the flowers. Claw of the lip barbate. Anther truncate, often crenate. Pollinarium with 2 separate viscidia == Chilopogon.
6b. Bracts not unambiguously distichous, shorter than the flowers. Claw of the lip not barbate. Anther acute. Pollinarium with a single viscidium == Appendicula.
7a. Flowers urceolate or campanulate, brown, yellow, orange to cherry-red, either with white, yellow, or green tips or not. Lip without lateral lobes, with a spur from the middle, or without spur == 8.
7b. Flowers not urceolate or campanulate, with different colours. Lip entire to 3-lobed, not spurred at the base == 9.
8a. Pseudobulbs aparton the rhizome. Inflorescences solitary or rarely in pairs, not in a fascicle, the peduncle and the normal length pedicel not clasped by the == Mediocalcar.
8b. Pseudobulbs superposed. The 1-flowered inflorescences in a fascicle from the top of the pseudobulb, the short peduncles and the very long pedicels clasped by the conduplicate base of the leaf == Epiblastus.
9a. Stems wiry. Leaves distichous, linear, thin- == Poaephyllum.
9b. Stems sturdy cane-like or a pseudobulb. Leaves not thin, usually thick herbaceous, leathery or subulate== 10.
10a. Midlobe of the lip swollen, shortly cylindrical with rounded top. Leaf solitary on top of the pseuobulb, terete or dorsoventrally flattened. Pseudobulbs consisting of 1 slender internode == Ceratostylis.
10b. Midlobe of the lip not swollen and cylindrical. Leaves usually dorsoventrally flattened, rarely terete. Pseudobulbs consisting of 1 rather swollen internode or of several internodes == 11.
11a. Most parts of the plant covered with red-brown hairs == Trichotosia.
11b. Most parts of the plant glabrous, or rarely with white or black hairs == 12.
12a. Stem consisting of 1 rather swollen internode only == Eria
12b. Stem consisting of several internodes ==13.
12a. Leaves 2 or 3, terete, fleshy == Mycaranthes.
12b. Leaves dorsoventrally flattened == 13.
13a. Lip convex, mobile to the column foot which is at a right angle to column, bearing a fleshy cushion == Callostylis
13b. Lip not convex, immobile on the column foot which lacks a fleshy cushion == 14.
15. Pseudobulbs usually distant on a stout rhizome, 3- or more leaved, with 2 or 3 internodes. Inflorescence heteranth; rachis and flowers with woolly indument == Callostylis.
15. Pseudobulbs or cane-like stems usually tufted. Inflorescence and flowers various == 16.
16a. Lip with a callus of powdery farina == Mycaranthes
16b. Lip lacking a powdery farina == 17.
17a. Inflorescence with 1-3, long-pedicelled flowers, bracts as long as flowers == Callostylis
17b. Inflorescence of several flowers, bracts shorter than the flowers == 18.
18a. Stern cylindrical, woody, more than 50 cm long, with numerous distichous leaves == Callostylis.
18b. Stem pseudobulbous, rarely not (but then flesh y) == 19.
19b. Pseudobulbs usually less than a quarter the length of the leaves, borne sequentially on a stout rhizome. Leaves two or three, apical or subapical on pseudobulb == Bryobium.
19b. Pseudobulbs usually half the length of the leaves or more, clustered, not sequentially borne on the rhizome. Leaves 2-6 in upper part of the stem == Pinalia.
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