African Plant Database


Eulophia hians Spreng.
Family : ORCHIDACEAE
Protologue : Syst. Veg. (ed. 16) [Sprengel] 3: 720 (1826) 
Information on the genus : Eulophia
 
 
Status
Status for MA : accepted (present)
Status for SA : accepted (present)
Status for TA : accepted (present)
 
Synonym(s) Homotypic
 Eulophia hians Spreng. var. hians
 
Synonym(s) Heterotypic
=Eulophia clavicornis Lindl. var. clavicornis
=Graphorkis clavicornis (Lindl.) Kuntze
=Eulophia clavicornis Lindl.
=Eulophia robusta Rolfe (1910) p.p.
=Graphorkis emarginata (Lindl.) Kuntze
=Eulophia emarginata Lindl.
=Eulophia violacea Rchb. f.
=Eulophia obcordata Rolfe (1917)
 
Taxon infra-specific
Eulophia hians Spreng. var. hians
Eulophia hians var. nutans (Sond.) S. Thomas (1998)
Eulophia hians var. inaequalis (Schltr.) S. Thomas
 
Ecology and distribution
Trop. Afr.
Biology : Terrestrial herb 23-75 cm tall; pseudobulbs subterranean, flattened-conical, 1,2-1,5x2 cm, in a chain; leaves 5-6 in a fan, linear, folded, 15-40x0,3-0,8 cm, developing or well developed at anthesis (vars. nutans & inaequalis) or only partly developed (var. hians); inflorescence peduncle 11-73 cm long with 4-5 sheaths; rachis 6-16 cm long, 4-8-15-flowered; bracts spreading, lanceolate, 9-18 mm long; flowers spaced, small, not opening fully, greenish brown to green to yellow or violet; pedicel and ovary 10-14 mm long; sepals oblong-elliptic, 10-12x3-5 mm, keeled outside; petals elliptic, 8-10x3-5 mm; lip 7-10 mm long, 5-9 mm wide, 3-lobed; side lobes rounded; mid-lobe subcircular-oblong, 3x4,5 mm; callus of 2 ridges at base, becoming 4 rows of papillae in front; spur cylindrical-clavate, 2-3 mm long; fruit pendent, 18-20 mm long.
Ecology : “Grasslands, varying from short dry grasslands on sandy soils at lower altitude to montane grassland on rocky outcrops, dambo grassland, and high rainfall woodland on sandy soil, also on bare ground on chrome hills” (Fl. Zambes. 11/2: 476, 1998); on stony dolerite hillside after burn; bushland especially where it is seasonally very dry; bog or wet grassland; flowering soon after fire; 900-2800 m alt.
  Flowers often self-pollinating (Peter & Johnson in S. Afric. J. Bot. 75: 791-797, 2009, with photographs).
  Not in Somalia (fide Thulin, Fl. Somalia 4: 74, 1995). Botswana, Lesotho, Swaziland, S. Africa; Yemen (Wood, Handbook Yemen flora: 411, 1997); C Madagascar.
  Comprises 3 vars.: - var. hians [syn.: E. clavicornis Lindl.; Graphorkis emarginata (Lindl.) Kuntze; G. violacea (Rchb. f.) Kuntze; Eulophia emarginata Lindl. 1837, non Blume 1836; E. violacea Rchb. f.; E. obcordata Rolfe] has flowers with plum-purple sepals and pale lilac or blue petals and lip, from Zimbabwe S-wards; - var. inaequalis (Schltr.) S. Thomas [bas.: E. inaequalis Schltr.; syn.: E. clavicornis Lindl. var. inaequalis (Schltr.) A. V. Hall; E. aliwalensis Rolfe; E. engleri Rolfe; E. longipes Rolfe; E. transvaalensis Rolfe 1910, non Schltr. 1924 (= E. ovalis var. bainesii); E. watkinsonii Rolfe; E. keniensis Schltr.] with flower petals and lip bright yellow and callus of 3-7 dentate or erose ridges, from Zimbabwe S-wards; - var. nutans (Sonder) S. Thomas [bas.: Eulophia nutans Sonder; syn.: E. clavicornis Lindl. var nutans (Sonder) A. V. Hall; E. carunculifera Rchb. f.; E. vaginata Ridl.; E. aemula Schltr.; E. galpinii Schltr.; E. laxiflora Schltr.; E. crinita Rolfe 1897, non G. Don 1839, nom. illegit.; E. ukingensis Schltr.; E. flanaganii Bolus; E. gladioloides Rolfe; E. nelsonii Rolfe; E. purpurascens Rolfe; E. triloba Rolfe; E. amajubae Schltr.; E. decurva Schltr.; E. ernestii Schltr.; E. bathiei Schltr.; E. vleminckxiana Geerinck & Schaijes; E. madagascariensis Kraenzl. 1882, non Lissochilus madagascariensis Kraenzl. 1882; Graphorkis madagascariensis (Kraenzl.) Kuntze; G. nutans (Sond.) Kuntze; G. vaginata (Ridl.) Kuntze; Lissochilus vaginatus H. Perrier] with petals and lip (yellow-)green or whitish, callus densely papillate on mid-lobe, occurs throughout the geographical range. Differs from E. stachyodes in having smaller flowers. Sometimes confused with E. ovalis var. bainesii (with larger flowers).
Mada.
Biol./Eco : Herb; Subhumid; Grassland, Inselberg/Rock Face; 1500-1999 m, 2000-2499 m; distribution: Africa.
 
More info on :
see under Jstor_African Plant Initiative
see under Catalogue de Madagascar
see under Tropicos.org. Missouri Botanical Garden
 
Map
carte afrique num 175959
 
Record n°175959
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