Wednesday, November 4, 2015

Calanthe griffithii

Calanthe griffithii
Systematics
DomainEukaryotes
Eukaryotic
KingdomPlants
Plantae
DivisionVascular plants
Tracheophyta
ClassMonocot flowering plants
Liliopsida
OrderAsparagales
Asparagales
FamilyOrchids
Orchidaceae
GenusCalanthe
SpeciesCalanthe griffithii
Scientific name
§Calanthe griffithii
AUTHORLindl.


Plants 30-60 cm tall. Pseudobulbs subconic, small, ca. 2 cm in diam., with 2-4 sheaths. Leaves 3 or 4, well developed and spreading at anthesis, not deciduous; blade oblong or oblong-lanceolate, 29-34 × 5-7 cm, apex acute; base contracted and cuneate, forming a pseudostem to 16 cm. Scape arising from leaf axil, erect, to 75 cm, densely puberulent; rachis ca. 19 cm, laxly many flowered; floral bracts persistent, ovate-lanceolate, 4-5 mm, abaxially sparsely puberulent, apex acuminate. Flowers greenish brown to yellowish green with brownish lip; pedicel and ovary ca. 25 mm, densely puberulent. Sepals similar, oblong, ca. 20 × 10 mm, abaxially puberulent, 5- or 6-veined, apex acute; lateral sepals slightly narrower than dorsal sepal. Petals suboblanceolate, ca. 17 × 6 mm, glabrous, 3-veined, apex acute; lip adnate to base of column wings, shorter than sepals, 3-lobed; lateral lobes oblong, ca. 8 × 4 mm, apex obliquely truncate; mid-lobe brown, subcordate or flabellate-elliptic, ca. 9 × 12 mm, margin undulate, apex emarginate and apiculate in sinus; disk with a single subtriangular lamella centrally; spur straight, cylindric, ca. 6 mm, outside sparsely puberulent, apex obtuse. Column brown, ca. 8 mm, nearly glabrous; rostellum 2-lobed; pollinia obovoid, ca. 1.5 mm. Fl. May.
Evergreen broad-leaved forests; ca. 2000 m. SE Xizang [Bhutan, NE India, Myanmar].

CITIES category : Appendix II
 References 


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