FOC_25_Epidendroidea..

1. Saccolabiopsis taiwaniana S. W. Chung & T. C. Hsu,
Taiwan Quart. J. Forest Res. 28(3): 27. 2006.
台湾拟囊唇兰 tai wan ni nang chun lan
Stems abbreviated. Roots few, ca. 1 mm in diam. Leaves
3–5, pale green, obliquely lanceolate, 1.3–2 × 0.4–0.7 cm,
leathery, obtusely bilobed. Inflorescence racemose, ca. 4 cm,
curving, many flowered; peduncle generally shorter than rachis;
rachis ca. 1 mm in diam., thickest at middle, 13–19-flowered.
Flowers ca. 3 mm in diam., widely opening; sepals and petals
slightly incurved, translucent green; lip white; anther cap yellowish.
Dorsal sepal oblong-ovate, ca. 2 × 0.8 mm, obtuse; lateral
sepals similar to dorsal sepal, slightly oblique. Petals oblong,
slightly shorter than sepals, obtuse; lip broadly triangular,
ca. 2 × 0.7 mm, margin entire, obtuse, concave. Column ca. 0.7
mm, with narrow apical wings. Seed capsule linear-cylindric,
ca. 1.5 cm.
● Epiphytic on Beilschmiedia tsangii (Lauraceae) in broad-leaved
forests in semishade; 400–500 m. Taiwan.
EPIDENDROIDEAE
477
2. Saccolabiopsis wulaokenensis W. M. Lin, Kuo Huang & T.
P. Lin, Taiwania 51: 165. 2006.
拟囊唇兰 ni nang chun lan
Stems 3–6 cm. Leaves distichous, 3–8, oblong-lanceolate,
slightly curved, 2.2–5 × 0.6–1.2 cm. Inflorescence axillary,
simple, pendulous; peduncle and rachis 3–7 cm, dilated in middle
part, ca. 2 mm in diam., tapering at both ends, sulcate,
bearing 10–35 well-spaced flowers; floral bracts triangular, ca.
2 mm. Flowers whitish green, 2.5–3.5 mm in diam.; lip midlobe
white. Sepals oblong, 2–2.5 mm. Petals subspatulate, ca.
2 mm; lip shallowly 3-lobed, ca. 1.5 mm wide; lateral lobes
rounded; mid-lobe subovate or triangular, saccate at base, without
interior ornamentation. Column ca. 1 mm, foot absent; stigma
deeply set underneath; rostellum conspicuous; pollinia 2 on
long stipe. Seed capsule clavate, 1.7–1.9 cm.
● Epiphytic on branches of trees in broad-leaved forests; ca. 300
m. Taiwan.
175. PAPILIONANTHE Schlechter, Orchis 9: 78. 1915.
凤蝶兰属 feng die lan shu
Chen Xinqi (陈心启 Chen Sing-chi); Jeffrey J. Wood
Herbs, epiphytic, scrambling, monopodial. Stems erect to pendulous, climbing or pendulous, elongate, terete, branching or
unbranched, many noded, laxly many leaved. Leaves terete, fleshy, channeled adaxially, jointed and sheathing at base; sheaths
thickly leathery, tightly enclosing stem, persistent. Inflorescence axillary, 1- to several flowered. Flowers flat, large. Sepals and petals
subsimilar, free, spreading. Petals usually larger; lip continuous with column foot, immovable, spurred, 3-lobed; lateral lobes ± erect,
either parallel to or embracing column; mid-lobe often dilated and 2- or 3-lobed at apex; spur funnel-shaped or conic to long hornshaped.
Column subterete, short, fleshy, foot short; rostellum elongate, slender; pollinia waxy, 2, shortly cleft, attached by a broadly
triangular or subquadrate stipe to a large viscidium.
About 12 species: China, India, SE Asia and the Malay Archipelago; four species (one endemic) in China.
1a. Lip saccate or shortly spurred at base; spur or sac 2–2.5 mm; petals 7–10 mm wide .............................................. 3. P. taiwaniana
1b. Lip spurred at base; spur 20–25 mm; petals 15–17 mm wide.
2a. Lateral lobes of lip entire, embracing column, lip deep purplish red; dorsal sepal ca. 2 cm wide ............................... 1. P. teres
2b. Lateral lobes of lip bilobulate, lip color not as above; dorsal sepal 0.8–1.5 cm wide.
3a. Lobules of lateral lobes not serrate-denticulate; lip creamy white, sometimes tinged with pale pink ........ 2. P. biswasiana
3b. Lobules of lateral lobes serrate-denticulate; lip with a purple-flushed base and spur ................................... 4. P. vandarum
1. Papilionanthe teres (Roxburgh) Schlechter, Orchis 9: 78.
1915.
凤蝶兰 feng die lan
Dendrobium teres Roxburgh, Fl. Ind., ed. 1832, 3: 485.
1832; Vanda teres (Roxburgh) Lindley.
Stems scrambling, terete, usually to 1 m, stout, branching.
Leaves well spaced, terete, 8–18 cm × 4–5 mm, fleshy, obtuse.
Inflorescence slightly longer than leaf, laxly 2–5-flowered; peduncle
stout, with 3 or 4 membranous sheaths; floral bracts
broadly ovate, 4–6 mm, slightly fleshy, obtuse. Flowers
opening widely, 4–10 cm in diam., thinly textured, sepals and
petals white, tinged with pink or purplish, lip deep purple-red,
spur yellowish brown; pedicel and ovary white, 2–3 cm. Dorsal
sepal broadly elliptic, ca. 2.5 × 2 cm, obtuse-rounded; lateral
sepals obliquely ovate-oblong, ca. 3 × 2 cm, base adnate to
column foot, apex obtuse. Petals suborbicular, large, ca. 3 ×
2.7 cm, obtuse; lip spurred, 3-lobed; lateral lobes embracing
column, subobovate, ca. 1.5 cm wide, rounded; mid-lobe
spreading, obovate-triangular, ca. 2 cm, adaxially shortly hairy,
deeply bilobed; spur conic, ca. 2 cm. Column ca. 5 mm, foot ca.
5 mm. Fl. May–Jun. 2n = 38, 40.
Epiphytic on tree trunks in open forests or at forest margins; 500–
900 m. S Yunnan [Bangladesh, Bhutan, India, Laos, Myanmar, Nepal,
Thailand, Vietnam].
2. Papilionanthe biswasiana (Ghose & Mukerjee) Garay, Bot.
Mus. Leafl. 23: 371. 1974.
白花凤蝶兰 bai hua feng die lan
Aerides biswasiana Ghose & Mukerjee, Orchid Rev. 53:
124. 1945.
Stems erect or pendulous, terete, to 50 cm or longer, stout,
5–7 mm in diam., often unbranched, internodes 3–4 cm. Leaves