taxonID	type	description	language	source
03F487B4FFE5B13FFF17F0C4FDFCFBE9.taxon	materials_examined	Type: — Thailand: Lampang (ลำปาง) province, Jae Hom (แจ ้ ห ่ ม) district, in lightly shaded or vertical cliffs of limestone at an elevation of 1,100 – 1,200 m, 23 August 2021, S. Pumikong 021001 (holotype QBG! [no. 132572]) A lithophytic herbs. Leaves 4 – 5, linear-oblong, slightly obtuse at unequally bilobulate at apex, 2.0 – 2.5 cm wide, 10 – 15 cm long, dark green, purple spotted near base below. Inflorescence 1 - flowered; peduncle 9 – 15 cm long, slender and strong, shortly pubescent, green, densely spotted brownish purple; bract elliptic, obtuse, 1.0 – 1.5 cm wide, 2.5 – 3.0 cm long, green, spotted dark purple, ciliate. Flower 5.5 – 6.5 cm across; dorsal sepal purplish pink to white with reddish purple veins; synsepal pale yellow - green with reddish brown veins; petals glossy, pale greenish yellow with brown veins; labellum glossy, brownish yellow with reddish brown veins; pedicel and ovary green, pubescent, 3.0 – 3.5 cm long. Dorsal sepal ovate - elliptic to ovate, obtuse, 3.0 – 4.0 cm wide, 4.0 – 4.5 cm long, basal margins slightly recurved, apical margins incurved and undulate. Synsepal oblong - elliptic, subacute to obtuse, 2.0 – 2.5 cm wide, 3.5 – 4.0 cm long. Petals subhorizontal, incurved, narrowly oblong, rounded at apex, 0.8 – 1.0 cm wide, 3.8 – 4.5 cm long, slightly twisted at apex, ciliate at base. Labellum saccate, tapering to narrow apex, 2.0 – 2.4 cm wide, 3.0 – 3.5 cm long. Staminode obovate - obcordate, obtuse to rarely retuse, 0.9 – 1.0 cm wide, 0.9 – 1.0 cm long, rough surface, glittery, yellow with raised yellow wart. Flowering in cultivation: — July – September	en	Tongkham, Wicharuj, Pumikong, Supalak, Potapohn, Nuttha, Bundithya, Weenun (2022): Paphiopedilum charlesworthii var. lannaense, a new slipper orchid from Northern Thailand identified by morphological and AFLP analyses. Phytotaxa 531 (1): 1-17, DOI: 10.11646/phytotaxa.531.1.1
03F487B4FFE5B13FFF17F0C4FDFCFBE9.taxon	distribution	Distribution: — Endemic to Northern Thailand, Lampang province. Habitat: — Grow on lightly shaded or vertical cliffs on limestone with its roots adhere in cracks or on narrow shelves of limestone.	en	Tongkham, Wicharuj, Pumikong, Supalak, Potapohn, Nuttha, Bundithya, Weenun (2022): Paphiopedilum charlesworthii var. lannaense, a new slipper orchid from Northern Thailand identified by morphological and AFLP analyses. Phytotaxa 531 (1): 1-17, DOI: 10.11646/phytotaxa.531.1.1
03F487B4FFE5B13FFF17F0C4FDFCFBE9.taxon	etymology	Etymology: — lannaense describes the name of biggest ancient kingdom (Lanna) in Northern Thailand. Notes: — This new slipper orchid is morphologically close to Paphiopedilum charlesworthii, from which it differs by its dorsal sepal character, smaller flower size, and its staminode is obovate-obcordate with yellow color, rough surface, glittery and raised yellow wart.	en	Tongkham, Wicharuj, Pumikong, Supalak, Potapohn, Nuttha, Bundithya, Weenun (2022): Paphiopedilum charlesworthii var. lannaense, a new slipper orchid from Northern Thailand identified by morphological and AFLP analyses. Phytotaxa 531 (1): 1-17, DOI: 10.11646/phytotaxa.531.1.1
