GRANDISEPALUM Clausen, 1949
Synonym : Villadia grandisepala (Clausen) Clausen (1959)
Distribution : Mexico (Oaxaca) ; rocks, 2100 m.
Description (by 't Hart & Bleij in IHSP, 2003) :
Perennial erect shrublets to 15 cm tall.
Stems glabrous, branched, brown, green above.
Leaves alternate, sessile, elliptic-oblong, obtuse to subacute, flat and convex, 10.2 – 17 x 3.4 – 4.4 mm, to 2.2 mm thick, without a spur.
Inflorescences dense, terminal cymes 2 – 3 cm wide with 3 – 7 flowers.
Floral bracts elliptic-oblong, 9 – 13 x 2.6 – 4 mm.
Flowers 5-merous, sessile, 9 – 12 mm wide, sepals oblong, erect with spreading tips, 7.5 – 10 mm, petals lanceolate-oblong, erect with spreading tips, greenish-yellow, as long as the sepals or shorter, carpels erect, basally connate.
Compared to S. x luteoviride and S. chloropetalum in the protologue.