生活型

herb

形態特徵

• Epiphytic. Pseudobulbs <0.3 cm apart, ovoidglobose, 7 mm in diam.
• Leaves solitary at apex of pseudobulbs, elliptic to oblong, up to 3.8 cm long, 2 cm wide, obtuse to retuse, cuneate at base, thickly coriaceous.
• Scape arising from base of pseudobulbs, 11 cm long, ca. 1 mm thick, slender; bracts ovate-lanceolate, 3.2 mm long; pedicel and ovary 10 mm long, orangish-red. Flowers 5, umbellate, orangish-red, 1.8~3 cm long; upper sepal orangish-red, concave, ovate, 4 mm long, 3 mm wide, acuminate, long ciliate especially towards apex; lateral sepals orangish-red, meeting their length except terminal 1/3, obliquely linear-lanceolate, 18~30 mm long, acuminate, glabrous on margins or sparely hirsute on upper margin at base; petals obliquely ovate, orangish-red with darker-red veins, 4 mm long, 2 mm wide, acute at apex, contracted at base, long ciliate; lip attached to tip of column foot, orangish-red but white on lower side, thickly hornlike, ca. 3 mm long, recurved from erect base, disc glabrous, shallowly grooved, with a wide groove on lower side; column yellowish, 2 mm long, with 2 slender stylids at apex; anther cap semiglobose; pollinia 2, each with unequal connate partitions.
• Var. <i>calvum</i> shows variations in flower size and shape, which suggest the possibility of hybridization between <i>B. taiwaniana</i> and <i>B. hirundinis</i>.

物候

Flowering time: May.

分布

• 台灣 : This plant was found in broad-leaf forests of Shouka (壽卡), Pingtung Co. at 350 m. In nearby trees, <i>B. taiwaniana</i> and <i>B. hirundinis</i> were also found.

引證標本

Weimin Lin s.n. (holo TAI268955, Shouka, Southern Cross-Island Highway, Pingtung Co.)

參考文獻

• Tsan-Piao Lin and Wei-Min Lin, Taiwania 54(4): 325. 2009.