Volume 12 > Part 2 > Year 2014 > Page 402 > Orchidaceae > Coelogyne

11. Coelogyne lawrenceana Rolfewfo-0000908410

Gard. Chron., ser. 3, 37: 227. 1905; Pfitzer & Kraenzl. in Engl. (ed.), Pflanzenr. IV 50 II B 7: 31. 1907; Seidenf., Opera Bot. 114: 108, fig. 58, t. VIc. 1992; D.A.Clayton, Gen. Coelogyne: 169, fig. 21(1), t. 20C. 2002; Elis.George & J.-C.George, Coelogynes: 183, phot., watercolour. 2011. Fig. 223; Plate XXXI: 3.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : [Sect. Lawrenceanae D.A.Clayton] Pseudobulbs 2–4.5 cm apart, ovoid-oblong to fusiform, slightly furrowed, 5–11.5 by 2–3.5 cm. Leaves 2, rather leathery; petiole 1–7 cm; lamina lanceolate to linear-oblanceolate, 12.8–40 by 2.1–5.5 cm, acuminate to acute; nerves 7, prominent. Inflorescence hysteranthous, erect or curved at the top; peduncle terete, 11.5–20 cm; rachis 3–18.2 cm, internodes 2–4.8 cm, at base with 1–3 persistent scale-leaves. Floral bracts caducous. Flowers 1–3, open in succession, fragrant, 9–13 cm in diameter; sepals and petals yellow-brown to pale salmon or light green, labellum mainly white to cream, disk yellow-orange, side lobes often with a brown marginal band and scattered brown markings, mid-lobe claw with brown markings, junction of claw with lamina with a brown band or an (yellow-)orange band bordered by brown (the keel laciniae there often darker brown), column greenish to cream. Dorsal sepal more or less parallel to the column, ovate-lanceolate, 55–71 by 13–25 mm, (sub)acute. Lateral sepals ovate-oblong to ovate-lanceolate, 55–68 by 13–23 mm, acute. Petals obliquely (lanceolate-)linear, 52–66 by 3–8 mm, acute. Labellum 3-lobed, 53–65 by 28–36 mm; side lobes triangular with rounded top, sinus 4–7 mm; mid-lobe spathulate, 30–38 by 20–36 mm, claw usually distinct, 3–6 by 8–19 mm, top retuse to rounded or truncate, apex triangular; ornaments of 3–5 keels (and usually 2 additional short keels on mid-lobe claw), on disk moderately incised, on base of mid-lobe deeply incised to laciniate. Column 35–42 mm; apex rounded to notched or retuse.

Thailand : NORTHERN: Chiang Mai (Doi Inthanon – Seidenfaden & Smitinand GT 8293 -C).

Distribution : Vietnam (type).

Ecology : Hill evergreen forests; ca 1,650 m alt. Flowering: unrecorded in the wild, April–May in cultivation.

Notes: This species is newly recorded for Thailand. A live plant was collected on Doi Inthanon in 1978, but it was not until its second recorded flowering in the Botanical Garden of Copenhagen (in 2014) that it was identified as Coelogyne lawrenceana. It should be noted that an individual of this species cultivated in Queen Sirikit Botanic Garden, without locality data, may also be of Thai provenance; a sample of the latter plant has been preserved as Nanakorn et al. 17575 -QBG!.