YVESII Hamet, 1910

Distribution : China (eastern Sichuan) ; shady moist rocks, 1000 - 1300 m.

Description (according to IHSP, 2003) :

Perennial herbs with slender stems 2 - 8 cm tall.

Leaves usually in whorls of 4, broadly linear, subobtuse, 5 - 10 mm.

Inflorescences : Flowering branches ascending, rooting at the base, 4 - 12 cm, inflorescences few-flowered cymes with 2 - 3 cincinni, these rarely forked.

FIowers 5-merous, sepals broadly sessile, unequal, broadly linear to oblanceolate, subobtuse, 3 - 6 mm, petals ovate, subacute, yellowish, ± 5 mm.

Fu & Ohba (2001: 249) treat S. obtuso-lineare as synonym of S. yvesii (rather than of S. lineare as in this synopsis) and indicate an extension of the range to Taiwan.