taxonID	type	description	language	source
E9622A3CB4325D7CAB387420B926763C.taxon	description	Figs 2, 3	en	Gu, Jiang-Miao, He, Song-Tao, Wen, Fang, Bai, Xin-Xiang, Li, Mei-Jun (2025): Primulina xingyiensis (Gesneriaceae), a new species in the karst landforms of Guizhou Province, China. PhytoKeys 251: 1-12, DOI: 10.3897/phytokeys.251.135126
E9622A3CB4325D7CAB387420B926763C.taxon	diagnosis	Diagnosis. The corolla morphology of Primulina xingyiensis is similar to that of P. davidioides, and the phylogenetic tree shows that its closest relative is P. malingheensis, but there are also clear differences in morphological characteristics between the three (Table 2, Fig. 4). Primulina xingyiensis can be distinguished from P. davidioides by the thinner and smaller leaves, slightly fleshy (vs. pachyphyllous, rigid and coriaceous when dry); the shorter peduncles, 0.5 – 4 cm long only [vs. 5 – 9 (– 12) cm long]; the fewer flowers, 1 – 6 flowers per cymes (vs. 5 – 9 (– 11) flowers per cymes); the smaller corolla, ca. 5 cm long (vs. ca. 6 cm long); the staminodes glabrous, central one ca. 1 mm long (vs. sparsely glandular-puberulous, central one ca. 4.5 mm long); the ovary shorter than style (vs. the ovary longer than style). Primulina xingyiensis can be distinguished from P. malingheensis by the larger leaves, 4.3 – 9.8 × 3.1 – 5.1 cm (vs. 1.7 – 5.8 × 1.2 – 3 cm); the larger bracts, 2.0 – 4.3 × 1.5 – 2 cm, white when flowering, apex margin light green, occasionally purplish-red (vs. 1.3 – 1.8 × 0.8 – 1.0 cm, pale green to brownish-purple); the white calyx lobes (vs. light purple about 1 / 2 way down from top, yellowish green below); a dark purple spot between adaxial lip lobes (vs. throat roof with a reddish-brown spot); the pale yellow anthers (vs. white anthers, ventral surface slightly bluish purple).	en	Gu, Jiang-Miao, He, Song-Tao, Wen, Fang, Bai, Xin-Xiang, Li, Mei-Jun (2025): Primulina xingyiensis (Gesneriaceae), a new species in the karst landforms of Guizhou Province, China. PhytoKeys 251: 1-12, DOI: 10.3897/phytokeys.251.135126
E9622A3CB4325D7CAB387420B926763C.taxon	description	Description. Perennial herb. Rhizome subcylindrical, 5 – 16 mm long, 1.3 – 2 mm in diameter. Leaves all basal, 4 to 12, opposite; petiole 0.5 – 3.8 cm long, 1 – 3 mm in diameter, densely white pubescent; leaf blade slightly fleshy, ovate or oblong, (1.3 –) 4.3 – 9.8 × (0.7 –) 3.1 – 5.1 cm, margin irregular shallow dentate, puberulent on both sides, base cuneate, apex obtuse or suborbicular; midrib adaxially slightly impressed, abaxially prominent, lateral veins 2 – 5 on each side. Cymes 1 – 3 on each plant, 1 – 6 flowers per cymes; peduncle 0.5 – 4 cm long, ca. 2 mm in diameter, densely white pubescent. Bracts 2, opposite, narrowly ovate to suborbicular, white when flowering, apex margin light green, occasionally purplish-red, 2.0 – 4.3 × 1.5 – 2 cm, outside densely pubescent, inside sparsely pubescent, margin serrate from above the middle, base slightly truncate, apex acuminate; pedicels 5 – 9 mm long, ca. 1.5 mm in diameter, densely covered by short glandular hairs; calyx 5 - lobed to base, lobes nearly equal in length, white, linear-lanceolate to lanceolate, 5 – 8 mm × 1.5 – 2.2 mm, outside with short glandular hairs, inside glabrous, margin entire, apex acuminate. Corolla purple, 4.98 – 5.26 cm long, outside with glandular hairs, inside with vertical purple stripes, sparsely short glandular hairs below the insertion of the filaments; tube infundibuliform, 3.65 – 3.82 cm long, 1.14 – 1.27 cm diameter at mouth, 4.7 – 5.1 mm in diameter at base; limb distinctly 2 - lobed, adaxial lip 2 - parted to near base, dark purple spot between lobes, lobes semi-elliptic, ca. 6 × 6 mm; abaxial lip ca. 1.8 cm long, 3 - lobed to near middle, lobes oblong, 8 – 10 × ca. 6 mm. Stamens 2, inserted at 2.3 cm from the base of the corolla; filaments linear, 0.96 – 1.12 cm long, sparsely covered by short glandular hairs, distinctly geniculate, white, pale yellow basally or below the middle; anthers 2.9 – 3.2 mm long, 1.44 – 1.56 mm across, light yellow, reniform, fused by their adaxial surfaces, abaxial surfaces sparsely white bearded. Staminodes 3, glabrous, white, lateral ones ca. 4 mm long, inserted at 1.5 cm from the base of the corolla, central one ca. 1 mm long, inserted at 9 mm from the base of the corolla. Disc ca. 1 mm high, light yellow, annular, glabrous. Pistil 3.58 – 3.65 cm long, white, densely covered by white short glandular hairs, ovary linear, 1.54 – 1.61 cm long, 1.47 – 1.51 mm in diameter, densely covered by short glandular hairs; style linear, ca. 2 cm long, stigma 4.92 – 5.04 mm long, only with abaxial lip, oblique trapeziform, apex 2 - lobed, lobes triangular. Capsule linear, 2.4 – 3.3 cm long.	en	Gu, Jiang-Miao, He, Song-Tao, Wen, Fang, Bai, Xin-Xiang, Li, Mei-Jun (2025): Primulina xingyiensis (Gesneriaceae), a new species in the karst landforms of Guizhou Province, China. PhytoKeys 251: 1-12, DOI: 10.3897/phytokeys.251.135126
E9622A3CB4325D7CAB387420B926763C.taxon	etymology	Etymology. The specific epithet ‘ xinyiensis ’ refers to the type locality Xingyi. Its Chinese name is Xīng Yì Bào Chūn Jù Tái (兴义报春苣苔).	en	Gu, Jiang-Miao, He, Song-Tao, Wen, Fang, Bai, Xin-Xiang, Li, Mei-Jun (2025): Primulina xingyiensis (Gesneriaceae), a new species in the karst landforms of Guizhou Province, China. PhytoKeys 251: 1-12, DOI: 10.3897/phytokeys.251.135126
E9622A3CB4325D7CAB387420B926763C.taxon	distribution	Distribution and habitat. This new species is currently distributed only in the type locality of Xingyi City, Guizhou Province, China, where two populations have been found, both growing on limestone cave walls. Accompanying species mainly include Petrocosmea sp., Adiantum capillus-veneris L., and Aleuritopteris anceps (Blanf.) Panigrahi.	en	Gu, Jiang-Miao, He, Song-Tao, Wen, Fang, Bai, Xin-Xiang, Li, Mei-Jun (2025): Primulina xingyiensis (Gesneriaceae), a new species in the karst landforms of Guizhou Province, China. PhytoKeys 251: 1-12, DOI: 10.3897/phytokeys.251.135126
