FOC_25_Epidendroidea..

late, apex rounded and apiculate; disk with a broad and thick
band ca. 7 mm from base to mid-lobe and often finely papillate
around band. Column subcylindric, ca. 4 mm (not including
anther cap), foot 3–4 mm. Capsule cylindric, 3–3.5 cm, with
persistent hairs; fruiting pedicel ca. 2.5 cm, sparsely hairy. Fl.
Apr–May, fr. Aug–Sep.
Epiphytic on trees or lithophytic on rocks; 800–1500 m. SE
Hainan, S Yunnan [NE India, Laos, Myanmar, Thailand, Vietnam].
2. Dendrolirium lasiopetalum (Willdenow) S. C. Chen & J. J.
Wood, comb. nov.
白绵绒兰 bai mian rong lan
Basionym: Aerides lasiopetala Willdenow, Sp. Pl. 4: 130.
1805; Dendrobium albidotomentosum Blume; D. pubescens
Hooker; Epidendrum lasiopetalum (Willdenow) Poiret; Eria
albidotomentosa (Blume) Lindley; E. flava Lindley; E. lasiopetala
(Willdenow) Ormerod; E. pubescens (Hooker) Lindley
ex Loudon; Octomeria pubescens (Hooker) Sprengel; Pinalia
albidotomentosa (Blume) Kuntze; P. pubescens (Hooker)
Kuntze.
EPIDENDROIDEAE
351
Rhizome creeping, ca. 5 mm in diam. Pseudobulbs borne
1.5–5 cm apart on rhizome, fusiform, 3–7.5 × 1.5–3.5 cm, apex
with 3–5 leaves. Leaf blade elliptic or oblong-lanceolate, 12–30
× 1.5–5 cm, with 8–14 main veins, apex acuminate. Inflorescences
1 or 2, arising from near base of an old pseudobulb, 10–
20 cm, laxly flowered; rachis densely white or grayish yellowish
cottony-hairy; floral bracts ovate-lanceolate, ca. 1 cm,
abaxially with white or grayish yellowish cottony hairs, apex
long acuminate; pedicel and ovary 2–3 cm, densely hairy. Sepals
densely white or grayish yellowish cottony-hairy abaxially;
dorsal sepal lanceolate, ca. 12 × 2 mm, obtuse; lateral sepals
triangular-lanceolate, slightly oblique, ca. 13 × 5 mm. Petals
linear, ca. 14 × 1 mm, acuminate; lip ovate in outline, ca. 11 × 5
mm, base contracted into a claw, 3-lobed; margins of lobes undulate;
lateral lobes subobovate; mid-lobe suboblong; disk with
an obovate-lanceolate thickened area extending from base to
mid-lobe. Column ca. 4 mm, thick, foot ca. 4 mm, arcuate. Capsule
cylindric, 2.5–4 cm × ca. 4 mm, with white cottony hairs
when young. Fl. Jan–Apr, fr. Aug. 2n = 38, 40.
Epiphytic in shaded places in forests, epiphytic on trees along
streams, lithophytic on rocks; 1200–1700 m. SE Hainan, Hong Kong
[Bhutan, Cambodia, India, Laos, Myanmar, Nepal, Thailand, Vietnam].
125. AERIDOSTACHYA (J. D. Hooker) Brieger in Brieger et al., Schlechter Orchideen
1(11–12): 714. 1981.
气穗兰属 qi sui lan shu
Chen Xinqi (陈心启 Chen Sing-chi), Luo Yibo (罗毅波); Jeffrey J. Wood
Eria sect. Aeridostachya J. D. Hooker, Fl. Brit. India 5: 786. 1890 [“Acridostachya”].
Herbs, epiphytic or terrestrial. Stem well spaced on a stout rhizome, or clustered, short, stout, fleshy but noticeably swollen,
base densely covered by imbricate sheaths. Leaves distichous, erect, conduplicate, narrowly oblanceolate or oblanceolate, leathery.
Inflorescence arising from upper nodes of stem, erect and terminated by an arching, densely flowered, bottlebrush-like raceme,
covered by short, dense, stellate hairs. Flowers small, not resupinate or ovary only slightly twisted, usually cream-colored or yellow,
sometimes purplish, or appearing brownish due to brown stellate-hairy indumentum. Sepals densely brown stellate-hairy abaxially;
dorsal sepal triangular; lateral sepals obliquely dilated at base, adnate to much elongated column foot forming a long, distinct conic
mentum. Petals oblong, smaller than sepals, narrow; lip erect, entire, or obscurely 3-lobed, joined contiguously to column foot,
closely pressed to column and column foot, often expanding at base or folded in such a way as to form a pouch. Column short, foot
usually longer, often rather sigmoid; pollinia 8, ellipsoid or clavate, ± equal in shape and size.
Possibly 15 species: China (Taiwan), Indonesia, Malaysia, New Guinea, Pacific islands, Philippines, Thailand; one species in China.
1. Aeridostachya robusta (Blume) Brieger in Schlechter,
Orchideen, ed. 3, 1A(11–12): 714. 1981.
气穗兰 qi sui lan
Dendrolirium robustum Blume, Bijdr. 347. 1825; Aeridostachya
purpureocentra (J. J. Smith) Rauschert; Eria aeridostachya
H. G. Reichenbach ex Lindley; E. borneensis Rolfe; E.
brunea Ridley; E. kinabaluensis Rolfe; E. linearifolia Ridley;
E. lorifolia Ridley; E. purpureocentra J. J. Smith; E. robusta
(Blume) Lindley; E. sawadae Yamamoto; E. uchiyamae Tuyama;
Pinalia aeridostachya (H. G. Reichenbach ex Lindley)
Kuntze; P. robusta (Blume) Kuntze.
Pseudobulbs tufted, laterally compressed, cylindric, 3–7 ×
ca. 1.5 cm, stout, distally 2–4-leaved. Leaves ± distichous,
erect, sessile, linear-oblanceolate, 30–40 × 2–3.5 cm, leathery,
base attenuate, apex acute. Inflorescence subterminal, 17–18
cm, slender, upper part slightly recurved, with stellate hairs,
densely many flowered; peduncle 12–13 cm, with a few sterile
basal bracts; sterile bracts red, ovate, ca. 2 × 1 mm, densely
stellate-pilose, acuminate; floral bracts inconspicuous. Flowers
small, crowded, brownish; pedicel and ovary ca. 6 mm, densely
stellate-pilose. Sepals with reddish hairs abaxially; dorsal sepal
ovate-oblong, ca. 3 × 1.5 mm, often slightly thickened, base
truncate, apex obtuse; lateral sepals obliquely ovate, ca. 2.5 × 3
mm, obtuse. Petals oblong, slightly oblique, ca. 3 × 1.5 mm,
glabrous, base truncate, margin undulate, apex rounded; lip ±
cymbiform, oblong in outline, ca. 4 × 1.5 mm, with 4 or 5 purple,
branched veins, glabrous, base adnate to column foot, entire,
margin conspicuously crenulate, apex recurved, bluntly
rounded. Column erect, ca. 1 mm, base with a deep groove, foot
ca. 3 mm. Fl. May.
Epiphytic on tree trunks in forests; ca. 1000 m. S Taiwan [Indonesia,
Malaysia, New Guinea, Philippines, Thailand; Pacific islands
(Fiji, New Caledonia, Samoa, Solomon Islands)].