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280<br />
● Humus-rich places in dense forests; ca. 1500 m. SE Yunnan<br />
(Malipo).<br />
Among the current authors, Cribb observes that this is unlikely to<br />
be a mycotrophic species, given that it has typical autotrophic roots, not<br />
the rhizomatous structure found in all mycotrophic orchids. It also has<br />
green capsules, thus it is photosynthetic at least when in fruit. This<br />
taxon is close to Cymbidium lancifolium but probably warrants specific<br />
EPIDENDROIDEAE<br />
92. ACRIOPSIS Blume, Bijdr. 376. 18<strong>25</strong>.<br />
合萼兰属 he e lan shu<br />
Chen Xinqi (陈心启 Chen Sing-chi); Jeffrey J. Wood<br />
rank. It is not known whether it has been grown in cultivation to ascertain<br />
if it develops leaves after flowering. As mentioned under C. rhizomatosum,<br />
elongate rhizomes are found in C. lancifolium var. papuanum<br />
(a synonym of C. lancifolium in the present treatment). On the<br />
other hand, Chen observes that the flowers of C. multiradicatum differ<br />
greatly from either C. lancifolium or other species, showing little relationship<br />
with them.<br />
Herbs, epiphytic. Rhizome creeping, branched; roots slender, branched, fleshy, with ascending catch-roots. Pseudobulbs<br />
crowded, ovoid or subovoid, with 2 or 3 nodes, covered at base by slender, silvery sheaths, 2- or 3-leaved. Leaves apical, midrib<br />
sunken above, prominently raised beneath, petiolate. Inflorescence racemose or paniculate, heteranthous, many flowered, arising<br />
from base of pseudobulb; peduncle terete, long; floral bracts persistent. Flowers not resupinate, twisted, widely open, small. Sepals<br />
lanceolate, concave at apex; lateral sepals fused to form a synsepal. Petals spreading, oblong to obovate; lip 3-lobed, pandurate to<br />
entire; disk 2-keeled. Column straight to sigmoid; stelidia 2, long, parallel, porrect or decurved; rostellum beaklike, bifurcate; pollinia<br />
4, connate in 2 pairs.<br />
Six species: N India, Myanmar, Thailand, and Indochina eastward through Malaysia and Indonesia to the Philippines, New Guinea, Solomon<br />
Islands, and Australia; one species in China.<br />
1. Acriopsis indica Wight, Icon. Pl. Ind. Orient. 5: t. 1748.<br />
1851.<br />
合萼兰 he e lan<br />
Roots white, ca. 1.5 mm in diam., well developed, fleshy.<br />
Pseudobulbs oblong-ovoid, 2–2.5 × 1–1.3 cm, often narrowed<br />
at base, usually with 5–8 internodes, with lacerate sheaths on<br />
nodes. Leaves terminal, 2 or 3, appearing after anthesis; leaf<br />
blade narrowly oblong, 7–7.5 × 0.3–0.4 cm, base slightly contracted<br />
into a short petiole, apex acuminate. Inflorescence paniculate,<br />
arising from basal node of pseudobulb, erect or<br />
slightly drooping, much longer than leaves, 11–38 cm, laxly<br />
many flowered; peduncle 6–7 cm, with 2 or 3 small sheaths;<br />
floral bracts 0.5–2.5 × 0.3–0.8 mm. Flowers yellowish green,<br />
Cytheris Lindley.<br />
slightly spotted with purple, lip white; ovary 2.3–2.5 mm. Dorsal<br />
sepal suboblong, 4–5 × ca. 1 mm, 3-veined, base contracted,<br />
slightly concave, apex acuminate; synsepal similar to dorsal sepal,<br />
but slightly larger, with 5 inconspicuous veins. Petals obovate-spatulate,<br />
3–4 × ca. 1.3 mm, margin sometimes irregularly<br />
crisped, apex obtuse; lip suboblong, 4–5 × ca. 1.4 mm, adaxially<br />
with 2 suborbicular central lamellae, apex obtuse or subrounded.<br />
Column ca. 4 mm, stelidia ca. 0.8 mm, without foot;<br />
anther cap ca. 0.7 mm in diam.; pollinia narrowly obconic, ca.<br />
0.7 mm. Capsule ellipsoid or globose. Fl. May.<br />
Epiphytic on trunks of Quercus trees; ca. 1300 m. S Yunnan<br />
[Cambodia, Indonesia, Laos, Malaysia, Myanmar, ?NE India, Philippines,<br />
Thailand, Vietnam].<br />
93. NEPHELAPHYLLUM Blume, Bijdr. 372. 18<strong>25</strong>.<br />
云叶兰属 yun ye lan shu<br />
Chen Xinqi (陈心启 Chen Sing-chi); Jeffrey J. Wood<br />
Herbs, terrestrial (rarely epiphytic). Rhizome creeping; roots sometimes villous, with root hairs. Pseudobulbs ascending, articulate<br />
at junction with petiole and peduncle, scales tubular, membranous, often soon caducous. Leaf 1 per pseudobulb, convolute,<br />
petiolate; petiole suborbicular, channeled, not sheathing; blade ovate to cordate, main veins prominent, often mottled. Inflorescence<br />
an erect raceme, unbranched, 2–16-flowered; peduncle and rachis usually elongating after anthesis, peduncle with few internodes,<br />
scales persistent, tubular; rachis erect, unbranched; floral bracts sessile, not tubular. Flowers not resupinate, turned to all sides, most<br />
open simultaneously. Sepals reflexed or not, lanceolate to linear. Petals reflexed or not, lanceolate to linear, falcate or not; lip immobile,<br />
broadly attached to column foot, parallel to column, blade flat or shallowly concave, or basal half tubular and open at upper<br />
side and front part recurved, entire or 3-lobed; disk with central 3 veins either keeled or with a platelike appendage or 1 or more rows<br />
of fleshy papillae or laciniae, adaxially glabrous, velvety hairy or with patches of hairs or both; spur clavate, cylindric, or saccate.<br />
Column with a flat foot, without a spur; anther cap imperfectly 4-locular, with 2 horns; pollinia 8 in 2 groups of 4, solid, with caudicles,<br />
stipe and viscidium absent. Capsule with persistent perianth.<br />
About 15 species: from India, Bhutan, Myanmar, Thailand, and Indochina north to China and Japan, eastward through Malaysia and Indonesia<br />
to the Philippines; one species in China.<br />
Nephelaphyllum pulchrum Blume (Bijdr. 373. 18<strong>25</strong>) was recorded from Hainan (Baisha and Changjiang) by X. Q. Song, Q. W. Meng and Y. B.
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