|
121. Conchidium Griffith, Not. Pl. Asiat. 3: 321. 1851.
蛤兰属 ge lan shu
Authors: Xinqi Chen, Yi-Bo Luo & Jeffrey J. Wood
Herbs, dwarf, caespitose, epiphytic or lithophytic, often forming mats on substrate. Rhizome creeping. Pseudobulb of 1 internode, globose, discoid, or oblong, strongly depressed, reticulate or not. Leaves 1-4, inserted at top of pseudobulbs, obovate-lanceolate, subsessile, petiole tapering, articulate. Inflorescence terminal, solitary, elongate, hysteranthous, proteranthous, or synanthous, 1- or a few flowered; peduncle filiform; floral bracts hooded, membranous. Flower white, pale green, or yellow. Dorsal sepal triangular, acuminate; lateral sepals obliquely triangular or lanceolate, acuminate, forming a distinct mentum with column foot. Petals obovate-lanceolate or oblong, acuminate or obtuse; lip entire or 3-lobed, with a claw, simple or adorned with ridges. Column with a curving foot; pollinia 8, compressed, ovoid; rostellum truncate, almost square in outline.
About ten species: Bhutan, S China, N India, S Japan, Laos, Myanmar, Nepal, Thailand, Vietnam; four species (one endemic) in China.
|
|
|
|
| 1 |
Pseudobulbs contiguous |
|
(2) |
| + |
Pseudobulbs borne 2-5 cm apart on rhizome |
|
(3) |
| |
|
|
|
| 2 (1) |
Pseudobulbs depressed globose, discoid, 5-6 × 4-6 mm, surrounded by reticulate sheaths, congested, 2- or 3-leaved; leaves 1-2 × 0.3-0.4 cm; flowers pale green; dorsal sepal ca. 4 mm, acuminate; disk with 2 basal calli. |
|
1 C. muscicola |
| + |
Pseudobulbs narrowly ovoid, 10-15 × 3-4 mm, not surrounded by reticulate sheaths, 2-leaved; leaves 4-10 × 0.5-1.6 cm; flowers white; dorsal sepal ca. 8 mm, obtuse; disk with 3 lamellae. |
|
4 C. japonicum |
| |
|
|
|
| 3 (1) |
Pseudobulbs 3-6 mm, ± subglobose or compressed globose, covered by reticulate sheaths; leaves 0.5-1.6 × 0.2-0.4 cm; lip to ca. 5 mm, entire, lanceolate; flowers white or pale yellow. |
|
2 C. pusillum |
| + |
Pseudobulbs 9-15 mm, oblong-cylindric, without reticulate sheaths; leaves 2-6 × 0.6-1.5 cm; sepals 11-18 mm; lip 10-17 mm, 3-lobed; flowers cream-colored and lavender or red. |
|
3 C. rhomboidale |
|
|
|
Lower Taxa
| Related Links (opens in a new window) |
|
Other Databases
|
|
|
|
|
|
|
