Chrysosplenium

P., Rai, P., Limboo & Khanal, M., 2024, Chrysosplenium delavayi (Saxifragaceae): An addition to the Flora of India, Rheedea 34 (3), pp. 197-200 : 197-200

publication ID	https://doi.org/10.22244/rheedea.2024.34.03.04
persistent identifier	https://treatment.plazi.org/id/4F113D19-FFF7-FFC2-6820-66DB7DB2042D
treatment provided by	Felipe
scientific name	Chrysosplenium
status

Treatment

Chrysosplenium View in CoL delavyi Franchet, Bull. Soc. Bot. France 32: 7. 1885.

C. pumilum Granck., Pl. Delavay. 1: 249. 1889.

C. subargenteum H.Lev. & Vaniot, Repert. View in CoL Spec. Nov. Regni Veg. 9: 441. 1991.

C. holochlorum Ohwi, Acta Phytotax. Geobot. View in CoL 2(3): 152. 1993. Fig. 1 View Fig

Low lying herbs, 5–15 cm tall. Sterile branches emerge from proximal cauline leaf axils. Stem subterete, 2–3 mm diameter, glabrous. Cauline leaves with petioles 3–6 mm, glabrescent at axils; leaf blade broadly ovate or sub-orbicular, 0.8–1.5× 0.5–1.5 cm, abaxially glabrescent or glabrous, adaxially glabrous and most often mottled with silvery patches, rarely lacking mottle, base cuneate to truncate, margins 3–12 crenate, apex obtuse. Flowers solitary or lax cyme, 2–4-flowered; bracts broadly ovate, 2–4 × 2–5 mm, margin entire, apex emarginate, glabrous. Flower green, c. 0.7 cm across; pedicel angular, 0.5– 1.2 cm long, glabrous. Sepals broadly sub-orbicular, c. 2 mm across. Stamens 8, sub-spherical, c. 1 mm across, yellow. Ovary sub-inferior; styles c. 0.3 mm long. Disc 8 lobed. Capsules retuse at apex. Seeds ovoid, c. 1 mm across, dark brown. ovoid, 0.7–1 mm, 13–15-sulcate, ridges with transverse lines.

Flowering & fruiting: Flowering and fruiting from November to January.

Habitat: It grows under shrubs or bamboo thickets, primarily along marshy floors. Some plants also thrive on moss-covered rocks and in their wet crevices.

Distribution: China, China-Taiwan, India (Gangtok), Myanmar.

Specimen examined: INDIA, Sikkim, Gangtok District, Upper Chandmari , 06.01.2022, P . Rai P0839 ( BSHC) .

Notes: Chrysosplenium delavayi is closely related to C. nepalense and found alongside it in populations in Sikkim. However, C. delavayi is easily distinguished from C. nepale nse by the presence of silvery dotted patches on its upper leaf surface.