FOC_25_Epidendroidea..

506
EPIDENDROIDEAE
fimbriate or toothed; mid-lobe large, fleshy and solid or reduced to a small fleshy lobe. Column short, slightly dorsiventrally compressed,
footless; stigma very large; rostellum long, narrow, 2-lobed; pollinia waxy, 2, subglobose, entire, attached by a common long
subcuneate or spatulate stipe to a very small viscidium.
About ten to 12 species: from India (Assam) through Thailand and Malaysia to Indonesia and the Philippines; one species in China.
1. Pennilabium yunnanense S. C. Chen & Y. B. Luo, Acta
Phytotax. Sin. 42: 457. 2004.
巾唇兰 jin chun lan
Stems erect, ca. 1 cm, with 3 or 4 leaves. Leaf blade
oblong, 4–6 × 1.3–1.5 cm, base slightly twisted, apex acute and
unequally bilobed. Inflorescence from base of stem, ± pendulous,
ca. 4 cm, 2- or 3-flowered; rachis flattened, ca. 5 mm;
floral bracts distichous, ovate-triangular, ca. 1 mm. Flowers
white, petals with dark purplish red spots inside, especially in
basal half, thinly textured; pedicel and ovary ca. 11 mm. Dorsal
sepal oblong-lanceolate, ca. 17 × 4 mm, acuminate; lateral sepals
falcately oblong-lanceolate, ca. as large as dorsal sepal,
acuminate. Petals oblong-lanceolate, ca. 16 × 3 mm, entire, acuminate;
lip spurred, 3-lobed; lateral lobes subspatulate-flabellate,
ca. 7 × 4 mm, apical margin shortly fimbriate; mid-lobe
subligulate, ca. 4 × 2 mm, entire, acute; spur cylindric, ca. 6 ×
1.5 mm, rounded-tipped. Column ca. 2 mm; stigma large,
nearly covering whole front surface of column; anther cap
slightly narrowed into a triangular apex; stipe ca. 0.8 mm,
widened at top; viscidium elliptic, ca. 0.4 mm, thick. Fl. Sep.
Epiphytic on tea trees; ca. 1300 m. S Yunnan [NE India, Thailand].
Chinese records of Pennilabium proboscideum A. S. Rao & J.
Joseph (e.g., in FRPS 19: 435. 1999) are referable to P. yunnanense.
194. MALLEOLA J. J. Smith & Schlechter, Repert. Spec. Nov. Regni Veg. Beih. 1: 979. 1913.
槌柱兰属 chui zhu lan shu
Chen Xinqi (陈心启 Chen Sing-chi); Jeffrey J. Wood
Herbs, epiphytic, small, monopodial. Stems enclosed in basal leaf sheaths, pendulous, elongate or rarely short, sometimes
slightly compressed. Leaves scattered along stem, several to many, distichous, often flushed with purple-red, oblique, usually narrowly
elliptic to oblong, jointed and sheathing at base, apex unequally bilobed. Inflorescences 1–3, lateral, ascending or pendulous,
mostly shorter than leaves, many flowered. Flowers facing in all directions, small, thinly textured. Sepals and petals free, spreading;
dorsal sepal often cymbiform; lateral sepals and petals flatter. Lip firmly attached to column, immovable, with a variably shaped
cylindric spur usually with interior ornaments; lateral lobes erect, broadly triangular, short; mid-lobe upcurved or downcurved,
usually linear-lanceolate, sometimes conic, very small, usually with a ridge or thickening at base. Column hammer-shaped, short,
stout, foot absent, often bent backward at apex; anther cap ± dorsal, large, apex narrowed and beaked; pollinia waxy, 2, globose,
entire or rarely porate, attached by a common long spatulate stipe that is very broad below pollinia; viscidium very small.
About 30 species: from Thailand and Vietnam to Malaysia and Indonesia, to the Philippines, New Guinea, and the Pacific islands, with the
center of distribution in the Malay Archipelago; one species in China.
Malleola insectifera (J. J. Smith) J. J. Smith & Schlechter (Repert. Spec. Nov. Regni Veg. Beih. 1: 981. 1913; Saccolabium insectiferum J. J.
Smith, Orch. Java, 641. 1905) was recorded from Hainan (Jianfeng Ling, 500–600 m) by X. Q. Song, Q. W. Meng and Y. B. Luo (Acta Bot. Yunnan.
31: 32. 2009). The present authors could not confirm this because they have not seen the specimen (X. Q. Song 061219, PE).
1. Malleola dentifera J. J. Smith, Bull. Jard. Bot. Buitenzorg,
sér. 3, 9: 191. 1927.
槌柱兰 chui zhu lan
Stems pendulous, slightly flattened terete, 3–10 cm, 3–4
mm in diam., unbranched, internodes 5–10 mm. Leaves many;
leaf blade narrowly oblong, 4–7.5 × 0.5–1 cm, leathery, unequally
bilobed or somewhat praemorse. Inflorescences borne
opposite leaves, shorter than leaves, many flowered; floral bracts
narrowly lanceolate, 1–2 mm. Flowers ca. 8 mm in diam., sepals
and petals pale brownish yellow with 2 crimson stripes, lip
purple and white, anther cap purple; pedicel and ovary ca. 8
mm. Dorsal sepal cymbiform, ovate, ca. 3 × 2 mm, acute; lateral
sepals obliquely ovate, ca. 3 × 2 mm, ± concave. Petals
oblong, ca. 3 × 1.5 mm, acute; lip spurred, 3-lobed; lateral lobes
erect, broadly ovate-triangular, ca. 1 × 1 mm, with 3 triangular
lobules at apex; distal lobule smaller, with thickened and incurved
apical margin; mid-lobe recurved, narrowly lanceolate,
fleshy thickened in basal half, narrowed toward apex, with a
longitudinal groove from base to middle; spur subconic-oblong,
ca. 5 × 2–3 mm, narrowed near tip. Capsule narrowly ovoid, 1–
1.5 cm × 4–5 mm. Fl. Jul, fr. Aug–Sep.
Epiphytic on tree trunks in forests; 600–700 m. S Hainan, S
Yunnan [Indonesia, Malaysia, Thailand, Vietnam].