Liparis bomiensis X.H. Jin & C. Ye, 2024

Ye, Chao, Ma, Chongbo & Jin, Xiaohua, 2024, Liparis bomiensis (Orchidaceae, Epidendroideae, Malaxideae), a new species from Xizang, China, Phytotaxa 634 (1), pp. 91-97 : 92

Liparis bomiensis X.H. Jin & C. Ye , sp.nov. Fig. 2 & 3 Ǿffl¥H"

Type. China. Xizang Autonomous Region, Bomi County, elev. 2000 m. 2 May, 2022, Xiaohua Jin & Chongbo Ma 38577 (holotype PE!, isotype, PE!) .

Diagnosis. Liparis bomiensis is morphologically close to L. rostrata with 2 thick projections at base of column, but differs from by having purple and rhombic lip about 15 mm long, sepals and petals more than 15 mm long.

Terrestrial plants, about 8–10 cm long. Pseudobulbs ovate, 1 cm long, about 5 mm in diam., enclosed by persistent leaf sheaths. Leaves 2, withered during winter, petiole forming pseudostem about 2 cm long, blade plicate, ovate, 5–6 cm long, 2–3 cm wide, acute. Inflorescence arising from pseudostem, 6–10 cm long, winged along the inflorescence. Bracts triangular, 1 mm long. Flowers green, lip purple. Ovary and pedicel 7–9 mm long. Sepals linear, 16 mm long, 1.2 mm wide, 1-veined; dorsal sepal erect; lateral sepals parallel under lip. Petals linear, 15 mm long, 0.8 mm wide, 1-veined. Lip rhombic, 15 mm long, 8 mm wide, middle veins deeply colored, apex mucronate, without calli on disc. Column 7 mm long, strongly curved, base dilated with 2 thick nipple-like projections, winged at apex.

Etymology. The epithet “bomiensis ” refers to the type locality of the new species, Bomi County, Xizang Autonomous Region, China. The Chinese name is given as “波‡¥4ẅ”.

Distribution and habitat. Liparis bomiensis is currently known only from the type locality in Bomi, Xizang, China. It grows under evergreen broadleaf forest at elevations of 2000 m.

Phenology. Flowering in May.

Note

Liparis bomiensis is similar to L. rostrata , L. pauliana , and L. glossula , but is readily distinguished from them based on the combination of morphological characters, including two leaves, purple and rhombic lip about 15 mm long, column dilated at based with two thick nipple-like projections ( Table 1 ).

Figures

FIGURE 2. Morphological characters of Liparis bomiensis sp. nov. A–D: flower (right, bottom and left view); E: lateral view of flower, red arrows indicating two thick nipple-like projections at base of column; F: flower parts (a: dorsal sepal, b: lateral sepals, c: petals, d: lip); G: habitat; H: plants.