Phalaenopsis wilsonii Rolfe, Bull. Misc. Inform. Kew 1909: 65

J., Kamba & Deb, C. R., 2021, Phalaenopsis wilsonii (Orchidaceae: Epidendroideae: Vandeae), a new record for India, Rheedea 31 (3), pp. 197-199 : 198-199

Phalaenopsis wilsonii Rolfe, Bull. Misc. Inform. Kew 1909: 65 . 1909. Polychilos wilsonii (Rolfe) Shim, Malayan Nat. J. 36: 27. 1982. Kingidium wilsonii (Rolfe) O.Gruss & Roellke, Orchidee (Hamburg) 47: 149. 1996. Doritis wilsonii (Rolfe) T.Yukawa & K.Kita, Acta Phytotax. Geobot. 56(2): 157. 2005. Type: CHINA, western China, without precise locality, E.H. Wilson 4576 (syn K

[K000891370, K000891371 digital images!]; BM

[BM000534956 digital image!]). Phalaenopsis minor F.Y.Liu, Acta Bot. Yunnan. 10:

119. 1988.

Phalaenopsis wilsonii Rolfe f. azurea Z.J.Liu &

Z.Z.Ru, Orchidee (Hamburg) 57: 318. 2006. Fig. 1

Plants c. 4 cm long. Roots well developed, densely verrucose, elongate, fasciculate, fleshy, flattened, greenish. Stem 0.8–1 cm long. Leaves usually 1 or 2, sometimes leafless, 6–7 × 2.2–2.4 cm, purple green, oblong-elliptic, apex acute. Flower stalk 7– 10 cm long, arcuate, zigzag. Bracts ovate-triangular, apex acute, c. 6 × 4 mm, membranous. Flowers few, widely opened, 4–5 cm broad, widely spaced. Sepals, petals orange-peach, colour prominent at base, mauve, lip magenta color, column white or pinkish. Dorsal sepal oblong-elliptic, c. 20 × 6 mm, acute or sub-obtuse at apex. Lateral sepals oblique, c. 16 × 7 mm, acute at apex. Petals spatulate, elliptic or oblong-ovate, c. 18 × 8 mm, obtuse at apex. Clawed at lip base, lip three-lobed; lateral lobes erect, sickle-shaped, 5–8 mm, adaxially incisedtipped keel; mid-lobe obcordate when spread, c. 9 × 5 mm, fleshy hump, convex, notched at apex, medium keel raised at base. Column erect, 6–8 mm, adaxial stigmatic cavity. Pedicellate ovary. Anther cap shortly beaked, white-purplish on dorsal side. Pollinia four, in two unequal pairs. Capsules 2–3 × 0.5–0.7 cm, cylindric.

Flowering & fruiting: Flowering from April to May; fruiting from May to July.

Habitat: Epiphytic on mossy tree trunks. Only two individuals were spotted growing together.

Distribution: China, now in India . Likely to have an extended distribution in northern Vietnam ( Christenson, 2001).

Specimen examined: INDIA , Nagaland, Zunhebhoto district, Kithsakita , N 26 ̊62 192 2 E 94̊322 142 2, 1529 m, 01.07.2017, J. Kamba 102 (Nagaland University Herbarium) .

Figures

Fig. 1. Phalaenopsis wilsonii Rolfe: a. Plant in vegetative state; b. Plant in flowering; c. InfloresCenCe; d. Single flower; e. Flower–side view; f. Ventral sepals and petals; g. Column with pediCelled ovary and 3-lobed lip; h. Lip-side view; i. Lip-top view; j. Lip bottom view; k. Lip Callosities; L. Spur beneath posterior Callus; m. Pollinia; n. BraCt (from J. Kamba 102; photos by J. Kamba).