Acanthophippium sylhetense Lindl.

Species

Angiosperms > Asparagales > Orchidaceae > Acanthophippium

Characteristics

Plants to 50 cm tall. Roots elongate. Pseudobulb ovoid-cylindric, 7-15 × 1.5-4 cm, 2-4-noded, with several large scalelike sheaths, 2-4-leaved. Leaves elliptic to oblong-elliptic, 30-40 × 8-11 cm, 5-veined, apex acuminate; petiole-like base ca. 2 cm, sheathing. Inflorescence 15-20 cm, fleshy, with several broadly ovate-lanceolate sheaths at base; rachis densely 3-5-flowered; floral bracts deep purple, ovate to oblong, concave, 2-2.5 cm, apex acute. Flowers white or yellow with purplish brown spots, campanulate-tubular, 40-45 mm; pedicel and ovary pale purple, 30-40 mm, sparsely pubescent. Sepals connate at base and connivent above, forming an urceolate tube with apices free; dorsal sepal subelliptic, 20-30 × 10-15 mm, 7-veined, apex obtuse; lateral sepals triangular to oblong, oblique, ca. 40 × 17-20 mm, 7-veined, base adnate to column foot, apex obtuse. Petals elliptic-obovate, 20-25 × 10-14 mm, fleshy, 5-veined, apex obtuse; lip adnate to apex of column foot, ca. 15 mm, fleshy, 3-lobed; lateral lobes erect, white, falcate, embracing column, ca. 8 mm; mid-lobe lemon-yellow, ligulate, 6-8 mm, apex obtuse, strongly recurved; disk white with purplish brown spots, fleshy, with 3-5 toothed lamellae; mentum formed by bases of lateral sepals and column foot, yellow with yellowish brown stripes, saccate, short, apex obtuse-rounded. Column white, ca. 15 mm; column foot white, tinged with purple, ca. 40 mm, inflexed at its mid-point through an angle of 30-40°, adnate to base of lateral sepals for ca. 1/2 of its length, slightly recurved toward apex; anther ca. 3 mm; larger pollinia ca. 2 mm, smaller pollinia ca. 1 mm; rostellum truncate; stigma broadly obovoid. Capsule to 60 mm. Fl. Apr-Jul.
Life form perennial
Growth form herb
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Sexuality hermaphrodite
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Mature height (meter) 0.5
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OctNovDec
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Hardiness (USDA) 8-12

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Cultivation

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Images

Acanthophippium sylhetense unspecified picture

Distribution

Acanthophippium sylhetense world distribution map, present in Bangladesh, China, Indonesia, Japan, Lao People's Democratic Republic, Myanmar, Philippines, Thailand, and Taiwan, Province of China

Identifiers

LSID urn:lsid:ipni.org:names:50922798-1
WFO ID wfo-0000262239
COL ID 8Z48
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Acanthophippium ringiflorum Acanthophippium sylhetense Acanthophippium yamamotoi Acanthophippium curtisii var. albidum