ORCHIDACEAE - China

480EPIDENDROIDEAEapex rounded; spur ca. 3 mm; callus biseriate, posterior callusfleshy, bidentate, on back wall of spur, anterior callus ligulate,deeply bifid, attached to front wall at base of mid-lobe. Columnca. 5 mm, stout, broadly dilated at stigma, foot ca. 3 mm; anthercap subglobose, apex slightly mucronulate. Fl. Jun. 2n = 36, 38,40, 57.Epiphytic on tree trunks in forests; 1100–2200 m. S Xizang, NWto SE Yunnan [Bhutan, NE India, Myanmar, Nepal, Thailand].2. Phalaenopsis braceana (J. D. Hooker) Christenson, Selbyana9: 169. 1986.尖 囊 蝴 蝶 兰 jian nang hu die lanDoritis braceana J. D. Hooker, Fl. Brit. India 6: 196.1890; Biermannia navicularis (Z. H. Tsi ex Hashimoto) Tang &F. T. Wang ex O. Gruss & Roellke; Kingidium braceanum (J. D.Hooker) Seidenfaden; K. naviculare Z. H. Tsi ex Hashimoto.Roots flattened, long, densely verrucose. Stems inconspicuous.Leaves 1 or 2, deciduous, rarely present, oblong-elliptic,to 2.4 × 0.8 cm, subacute. Inflorescences 1–3, from base ofstem, pendulous or arching, 12–26 cm, unbranched, laxly manyflowered; rachis dark green, 6–13 cm; floral bracts lanceolate,3–5 mm, acuminate. Flowers opening widely, variable in color,sepals and petals yellow, green, or greenish bronze variouslysuffused pink, lip dark rose; pedicel and ovary yellowish green,1.5–2.5 cm. Sepals obovate-oblong, 10–15 × 5–6 mm, obtuse;lateral sepals base ca. 1/2 width adnate to column foot. Petalssubspatulate, 10–13 × 3–4.5 mm, base clawed, apex rounded;lip 3-lobed; lateral lobes erect, suboblong, ca. 6 × 3 mm,adaxially with a high lamella close to proximal margin, apexrounded; mid-lobe erect, elliptic, convex, 7–8 × 3–4 mm,slightly beaked, margin recurved, base with a flattened, furcateappendage; spur narrowly conic, ca. 3 mm; callus biseriate,basal callus fleshy, bifid with tips recurved and hornlike, onback wall of spur, apical callus slender, bifid, on front wall ofspur becoming free at base of mid-lobe. Column cylindric, ca. 5mm, foot ca. 2 mm; anther cap white, subglobose; stipe spatulate,ca. 3.5 mm; viscidium elliptic. Fl. May.On tree trunks in open forests; 1100–2000 m. S and SW Yunnan[Bhutan, N Vietnam].3. Phalaenopsis wilsonii Rolfe, Bull. Misc. Inform. Kew 1909:65. 1909.华 西 蝴 蝶 兰 hua xi hu die lanDoritis wilsonii (Rolfe) T. Yukawa & K. Kita; Kingidiumwilsonii (Rolfe) O. Gruss & Roellke; Phalaenopsis minor F. Y.Liu; Polychilos wilsonii (Rolfe) Shim.Roots well developed, ± greenish, elongate, slightly flattened,densely verrucose. Stems ca. 1 cm, usually 4- or 5-leaved, leafless or with 1 or 2 small leaves at anthesis. Leavesoften deciduous in dry season, sometimes purplish reddishabaxially when young, oblong or subelliptic, 6.5–8 × 2.6–3 cm.Inflorescences often 1 or 2, suberect or arching, 4–8.5 cm,unbranched, laxly 10–15-flowered; floral bracts ovate-triangular,4–5 mm, membranous. Flowers opening simultaneously,opening widely; sepals and petals pastel pink grading to mediumrose at base, lip dark rose-purple, column white; pedicel andovary 3–3.8 cm. Sepals oblong-elliptic, 15–20 × 6–7 mm,obtuse. Petals spatulate or elliptic-obovate, 14–15 × 6–10 mm,rounded; lip base with a claw 2–3 mm, lip 3-lobed; lateral lobeserect, ca. 6 mm, adaxially with an incised-tipped keel; mid-lobebroadly obovate, 8–13 × 6–9 mm, fleshy, notched at apex, convex,with a raised elliptic pad below apex, with a raised mediankeel at base; callus biseriate, subsimilar and subequal, sulcate,bilobed. Column ca. 6 mm, foot ca. 3 mm. Capsule cylindric, to7 cm × ca. 6 mm. Fl. Apr–Jul, fr. Aug–Sep.Epiphytic on tree trunks or lithophytic on damp rocks in forests oralong valleys; 800–2200 m. W Guangxi, SW Guizhou, SW Sichuan, SEXizang, NW to SE Yunnan [N Vietnam].4. Phalaenopsis stobartiana H. G. Reichenbach, Gard. Chron.,n.s., 8: 392. 1877.滇 西 蝴 蝶 兰 dian xi hu die lanDoritis stobartiana (H. G. Reichenbach) T. Yukawa & K.Kita; Kingidium stobartianum (H. G. Reichenbach) Seidenfaden;Phalaenopsis wightii H. G. Reichenbach var. stobartiana(H. G. Reichenbach) Burbidge; Polychilos stobartianus (H. G.Reichenbach) Shim.Stems very short, usually 3- or 4-leaved. Leaves oftendeciduous during dry season, but present at anthesis, ovate-lanceolate,oblong, or elliptic, 7–11 × 3–3.4 cm. Inflorescences 1or 2, often ascending, 7–37 cm, unbranched, laxly 2–4-flowered;floral bracts ovate-triangular, 4–5 mm. Flowers openingwidely, sepals and petals apple-green to dark olive-green, lipand column brilliant rose; pedicel and ovary 4–4.3 cm. Dorsalsepal oblong-elliptic, ca. 14 × 6 mm, base slightly contracted,apex obtuse; lateral sepals slightly oblique, ovate-elliptic, ca. 14× 7 mm, subacute. Petals elliptic-obovate, ca. 14 × 6 mm, obtuse;lip base with a claw ca. 1 mm, lip 3-lobed; lateral lobes ca.7 × 3.5 mm, narrow; mid-lobe obovate-elliptic, ca. 8 × 5 mm,narrowed toward base, apex mucronate, base with a deeply bilobed-tippedappendage, with a central longitudinal keel thickenedtoward base; callus concave adaxially and distinctly convexabaxially on disk. Column ca. 7 mm, base dilated, foot ca. 2mm. Fl. May–Jun.● Epiphytic on tree trunks in forests; 1300–1400 m. W Yunnan.5. Phalaenopsis hainanensis Tang & F. T. Wang, Acta Phytotax.Sin. 12: 47. 1974.海 南 蝴 蝶 兰 hai nan hu die lanDoritis hainanensis (Tang & F. T. Wang) T. Yukawa & K.Kita; Phalaenopsis chuxiongensis F. Y. Liu.Stems 1–1.5 cm, enclosed in leaf sheaths, 3- or 4-leaved.Leaves often deciduous at anthesis, or sometimes leaving asmall leaf, obliquely oblong, ca. 4 × 1 cm, retuse. Inflorescencesusually 1 or 2, ascending, to 55 cm, sometimesbranched, laxly 8–10-flowered; rachis 27–30 cm; floral bractsovate, 3–4 mm. Flowers opening widely, pale pink, lip darkerrose-pink; pedicel and ovary slender, 2–2.5 cm. Dorsal sepaloblong, ca. 13 × 3 mm, obtuse; lateral sepals obliquely elliptic,ca. 13 × 5.5 mm, acute. Petals spatulate, ca. 12 × 5–6 mm, basecontracted into a short claw, apex obtuse; lip base with a clawca. 1 mm, lip 3-lobed; lateral lobes erect, falcate-oblong, ca. 5 ×