Prev Genus: Genus Agrostophyllum

Genus Agrostophyllum section Agrostophyllum

Genus Agrostophyllum section Agrostophyllum

Agrostophyllum Blume, Bijdr. (1825) 368

Sympodial epiphytic or rarely terrestrial plants with very short to somewhat elongated rhizomes. Stems usually elongated, with few to many internodes, sometimes swollen into slender, flattened pseudobulbs. Leaves few to many, arranged in two rows, sheathing at the base, glabrous, deciduous, duplicate, thin-textured but rather stiff; leaf-sheaths usually with black or brown margins. Inflorescences terminal [at least seemingly so], very short, 1- or few-flowered, usually produced in dense head-like clusters. Flowers small, resupinate or not, white or yellowish, sometimes with purple or yellow markings on the lip. Sepals free. Petals free, about as long as but much narrower than the dorsal sepal. Lip without spur, but sometimes sac-shaped at the base, not mobile, usually clearly divided into a cup-shaped basal part and a flat apical part. Column-foot indistinct or absent. Pollinia 8, solid, caudicles absent, stipe absent, viscidium present. Ovary usually with a few scattered scale-hairs.

Seychelles, tropical Asia, Malaysia, Indonesia, the Philippines, Papua New Guinea, Pacific islands, east to Samoa. About 50 {CHECK} species; in New Guinea c. 31 species.

Usually epiphytic on tree trunks and thick branches in lowland and montane forest.

  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Undetermined
  • Subtribe Agrostophyllinae
  • Subtribe Agrostophyllinae
  • Section Agrostophyllum

Members of section Agrostophyllum are as a rule easily recognised by the erect stems with head-like clusters of small whitish flowers at the apex of the stems. The black or brown margins of the leaf-sheaths are also highly characteristic, although they are not always present, and are paralleled in some species of Phreatia. Agrostophyllum is almost unknown in cultivation, but quite common in the wild.

The subdivision in 4 sections: Agrostophyllum, Dolichodesme, Oliganthe and Appendiculopsis is still useful for identification purposes, but possibly it is not a natural one, in that species with morphologically very similar flowers can be found in sect. Agrostophyllum (e.g. Agrostophyllum uniflorum and its allies), sect. Oliganthe (Agrostophyllum superpositum) and sect. Dolichodesme (e.g. Agrostophyllum earinoides).

Genus Agrostophyllum section Agrostophyllum in New Guinea contains 63species and 4 subspecies/varieties:

Agrostophyllum acuminatum
Agrostophyllum acutum
Agrostophyllum alticola
Agrostophyllum appendiculoides
Agrostophyllum arabukanum
Agrostophyllum atrobrunneum
Agrostophyllum barkeri
Agrostophyllum beleense
Agrostophyllum bilobolabellatum
Agrostophyllum bimaculatum
Agrostophyllum brachiatum
Agrostophyllum brassii
Agrostophyllum carex
Agrostophyllum carrianum
Agrostophyllum cheirophyton
Agrostophyllum compressum
Agrostophyllum crassicaule
Agrostophyllum crassicaule var. bismarckiense
Agrostophyllum crassilabium
Agrostophyllum curvilabre
Agrostophyllum cyatheicola
Agrostophyllum cycloglossum
Agrostophyllum daymanense
Agrostophyllum dolichophyllum
Agrostophyllum elatum
Agrostophyllum fibrosum
Agrostophyllum flexuosum
Agrostophyllum flexuosum subsp. telefominense
Agrostophyllum flexuosum subsp. peloricum
Agrostophyllum fragrans
Agrostophyllum gahavisukae
Agrostophyllum graminifolium
Agrostophyllum grandiflorum
Agrostophyllum grubbianum
AgrostophylIum grubbianum subsp. kaironkense
Agrostophyllum habbemense
Agrostophyllum huonense
Agrostophyllum isuaravum
Agrostophyllum kairoanum
Agrostophyllum kaniense
Agrostophyllum kerenganum
Agrostophyllum korubunense
Agrostophyllum leucocephalum
Agrostophyllum libanoanum
Agrostophyllum longinode
Agrostophyllum macrocephalum
Agrostophyllum majus
Agrostophyllum militare
Agrostophyllum milneanum
Agrostophyllum montanum
Agrostophyllum montis-jayanum
Agrostophyllum neoguineense
Agrostophyllum nidus-avis
Agrostophyllum niveum
Agrostophyllum papuanum
Agrostophyllum parviflorum
Agrostophyllum patentissimum
Agrostophyllum pelorioides
Agrostophyllum potamophilum
Agrostophyllum reeveanum
Agrostophyllum rigidifolium
Agrostophyllum sepikanum
Agrostophyllum subacuminatum
Agrostophyllum triquetrum
Agrostophyllum uniflorum
Agrostophyllum ventricosum
Agrostophyllum verruciferum
Agrostophyllum wagiribuanum
Agrostophyllum woitapense
Agrostophyllum yanemense

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Genus Agrostophyllum section Agrostophyllum

Agrostophyllum parviflorum J.J.Sm., stem with inflorescence, photo E.F. de Vogel, from Leiden cult. 20030755