Wednesday, November 4, 2015

Calanthe mannii

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


Alismorkis mannii (J. D. Hooker) Kuntze; Calanthe brachychila Gagnepain; C. pusilla Finet.
Plants 30-45 cm tall. Rhizome inconspicuous. Pseudobulbs conic, ca. 1 cm in diam., with 2 or 3 sheaths. Leaves 3-5, not well developed at anthesis, not deciduous; blade oblanceolate or oblong, 18-35 × 3-4.5 cm, plicate, abaxially puberulent, base subsessile or attenuate into a petiole-like stalk, apex acute; petiole-like base 5-10 cm, usually forming a pseudostem 5-7 cm. Scape arising from leaf axil, erect, to 51 cm, densely puberulent; rachis 4-10 cm, 10- or more flowered; floral bracts persistent, lanceolate, 2-4 mm, glabrous. Flowers small, dark brown, with golden yellow lip; pedicel and ovary 5-7 mm, densely puberulent. Sepals similar, ovate-lanceolate or oblong, concave, 7-9 × 2.5-4.5 mm, abaxially densely puberulent, 3-5-veined, apex acute; lateral sepals ± oblique. Petals obovate-lanceolate or oblong, 6-7 × 1.2-2 mm, glabrous, 1-3-veined, apex acute; lip adnate to entire length of column wings, 3-4.5 × 2.5-3 mm, 3-lobed; lateral lobes ovate, oblique, 1.5-2 × 1-1.5 mm, apex obtuse-rounded; mid-lobe transversely oblong or nearly reniform, 1.5-2 × 2.5-3 mm, margin slightly undulate, apex emarginate and mucronate in sinus; disk with 3 lamellae or ridges; lamellae extending from base of lip to apex of mid-lobe, expanding to semilunate swellings on mid-lobe; spur straight, 1-3 × ca. 1 mm, outside puberulent. Column white, ca. 3 mm, dilated at apex, ventrally puberulent; rostellum small, 2-lobed; pollinia narrowly ovoid, subequal in size, ca. 0.8 mm; viscidium suborbicular, small. Fl. May. 2n = 40.
Forests; 1300-2400 m. E Guangdong, NE Guangxi, SW Guizhou, SW Hubei, N Jiangxi, Sichuan, S and SE Xizang, NE Yunnan [Bhutan, India, Myanmar, Nepal, Vietnam].

CITIES category : Appendix II
References 
1. Ref 1

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