taxonID	type	description	language	source
7F8CDCF160CC5532887D79BD5B56EFEE.taxon	description	Figs 2, 3, 4, 5	en	Liu, Rui-Ning, Tan, Ke, Chen, Ping-Ya, Bai, Xin-Xiang, Xiong, Chi, He, Song-Tao, Wen, Fang (2025): Petrocodon parviflorus (Gesneriaceae), a new species identified by both morphological and molecular evidence from limestone caves in Guangxi, China. PhytoKeys 260: 201-212, DOI: 10.3897/phytokeys.260.153384
7F8CDCF160CC5532887D79BD5B56EFEE.taxon	diagnosis	Diagnosis. The new species resembles P. lui in leaf blade shape, but can be easily distinguished from the latter by corolla limb lobes oval (vs. oblong, obovate to suborbicular), longer style length 10 – 11.5 mm long (vs. 4 – 6 mm long), longer central staminode 1 – 1.3 mm long (vs. 0.5 – 0.8 mm long), calyx lobes sparsely puberulent abaxially (vs. glabrous abaxially).	en	Liu, Rui-Ning, Tan, Ke, Chen, Ping-Ya, Bai, Xin-Xiang, Xiong, Chi, He, Song-Tao, Wen, Fang (2025): Petrocodon parviflorus (Gesneriaceae), a new species identified by both morphological and molecular evidence from limestone caves in Guangxi, China. PhytoKeys 260: 201-212, DOI: 10.3897/phytokeys.260.153384
7F8CDCF160CC5532887D79BD5B56EFEE.taxon	description	Description. Perennial herbs. Rhizome brown, subterete, 5 – 7 cm long, ca. 1 cm in diameter, with distinct internodes, abundant fibrous roots. Leaves 13 – 19, congested at the apex of rhizome, petiolate; petiole brown, up to ca. 7 cm long, 1.5 – 4 mm in diameter, transversely elliptic in cross section, slightly grooved adaxially, densely white pubescent; leaf blade slightly chartaceous, green adaxially and pale green abaxially, broadly ovate to suborbicular, 4 – 6.5 × 4 – 5.5 cm, apex subacute or obtuse, base cordate to shallowly cordate, oblique, densely white pubescent adaxially and abaxially, margin crenate, lateral veins 4 – 5 on each side of median vein, impressed adaxially, slightly prominent abaxially. Cymes 10 – 13, axillary, 3 – 4 - branched, 8 – 18 - flowered; peduncle brownish, 5 – 9 cm long, 1.5 – 2 mm in diameter, densely white puberulous pubescent; bracts 2, opposite, green, linear, 5 – 7 × 1 – 1.5 mm, outside densely pubescent and inside sparsely pubescent, bracteoles 2, shape similar to bracts but smaller, 3 – 4 × 0.5 – 1 mm; pedicels green or brown, 0.5 – 1 cm long, ca. 1 mm in diameter, puberulous. Calyx 5 - partited to the base, lobes equal, narrowly lanceolate, 7 – 8 × 0.5 – 1 mm, green to brown, puberulous adaxially, sparsely puberulent abaxially, margin entire, apex acute. Corolla whitish purple to pinkish purple, 1.5 – 2.5 cm long, 3 – 5 mm in diameter at the mouth; outside glandular-puberulent, inside puberulent; tube slender, infundibuliform-tubular, 1 – 1.5 cm long, 1.5 – 2 mm in diameter at the middle, tube slightly upward curved, 2 – 2.5 mm in diameter at the base; limb distinctly 2 - lipped; adaxial lip 2 - lobed to the base, lobes oval, apex acute, 3.5 – 4 × 2.5 – 3 mm; abaxial lip 3 - lobed to the base, lobes equal, oval, apex acute, 4 – 4.5 × 3 – 3.5 mm, with 2 pale yellow nectar guides at the base of the abaxial lip lobe. Stamens 2, adnate to 5 – 6 mm above the base of the corolla tube, filaments white, 2 – 2.5 mm long, linear, straight, glabrous; anthers pale yellowish to nearly white, fusiform to ellipsoid, 0.7 – 1 × 0.6 – 0.8 mm, glabrous. Staminodes 3, translucent to white, glabrous, lateral ones adnate to 5.5 – 6 mm above the tube base, 1.5 – 1.8 mm long, clavate, straight, apex capitate; the central one adnate to 5 – 5.5 mm above corolla tube base, 1 – 1.3 mm long. Disc annular, pale yellow, ca. 0.5 mm in height, margin repand. Pistil 1.2 – 1.4 cm long, ovary pale green, cylindric, 2 – 2.5 mm long, 0.8 – 1 mm in diameter, glandular-pubescent; style 10 – 11.5 mm long, 0.4 – 0.6 mm in diameter, light green, densely puberulous mixed translucent glandular-puberulous; stigma 2, each ovate, ca. 0.5 mm long, 0.8 – 1 mm wide, sparsely translucent glandular-hispid. Capsule not seen.	en	Liu, Rui-Ning, Tan, Ke, Chen, Ping-Ya, Bai, Xin-Xiang, Xiong, Chi, He, Song-Tao, Wen, Fang (2025): Petrocodon parviflorus (Gesneriaceae), a new species identified by both morphological and molecular evidence from limestone caves in Guangxi, China. PhytoKeys 260: 201-212, DOI: 10.3897/phytokeys.260.153384
7F8CDCF160CC5532887D79BD5B56EFEE.taxon	distribution	Distribution and habitat. The new species can only be found at its type locality, Jiangzhou Township, Fengshan County, northwestern Guangxi, China. It grows on moist shady rock surfaces in a karst cave at an altitude of 600 – 700 m. The average temperature in Fengshan County is 19.7 ° C, and the average annual precipitation is 1628.9 mm. The main associated plants of Petrocodon parviflorus include Primulina tribracteata (W. T. Wang) Mich. Möller & A. Weber, Mitreola pingtaoi D. Fang & D. H. Qin, Elatostema obscurinerve W. T. Wang, Begonia luzhaiensis T. C. Ku and others.	en	Liu, Rui-Ning, Tan, Ke, Chen, Ping-Ya, Bai, Xin-Xiang, Xiong, Chi, He, Song-Tao, Wen, Fang (2025): Petrocodon parviflorus (Gesneriaceae), a new species identified by both morphological and molecular evidence from limestone caves in Guangxi, China. PhytoKeys 260: 201-212, DOI: 10.3897/phytokeys.260.153384
7F8CDCF160CC5532887D79BD5B56EFEE.taxon	etymology	Etymology. The epithet ‘ parviflorus ’ reflects the relatively small flowers. The corolla is distinctly smaller compared to other species previously classified under the former Lagarosolen W. T. Wang, particularly L. lui Yan Liu & W. B. Xu (syn. Petrocodon lui).	en	Liu, Rui-Ning, Tan, Ke, Chen, Ping-Ya, Bai, Xin-Xiang, Xiong, Chi, He, Song-Tao, Wen, Fang (2025): Petrocodon parviflorus (Gesneriaceae), a new species identified by both morphological and molecular evidence from limestone caves in Guangxi, China. PhytoKeys 260: 201-212, DOI: 10.3897/phytokeys.260.153384
