海南螺序草 hai nan luo xu cao

Herbs, creeping, perhaps perennial, ascending at apices; stems densely villosulous. Petiole 0.1-0.5 mm, densely villosulous; leaf blade drying thinly papery, adaxially grayish black, abaxially pale gray, cordiform-orbicular to ovate, 0.6-1.3 × 0.6-0.9 cm, both surfaces hispidulous at least on principal veins to glabrescent, base cordulate to subtruncate, apex obtuse; secondary veins 3 or 4 pairs; stipules deciduous, narrowly triangular, 1.5-2.5 mm glabrescent. Inflorescences cymose, 2- or 3-flowered, glabrescent, dichasial; peduncle 6-7 mm. Flowers subsessile. Calyx densely villosulous (Hainan plants) to glabrescent (Yunnan plants); hypanthium portion subglobose to oblanceoloid, ca. 1.5 mm; lobes narrowly lanceolate, 1.2-1.5 mm. Corolla white, funnelform, outside glabrous; tube ca. 8 mm; lobes lanceolate, 1-1.5 mm. Immature capsules ellipsoid-ovoid, ca. 2 mm, dehiscence unknown. Fl. Jul, young fr. Oct.

● Dense evergreen forests; 2100-2600 m. Hainan (Sanya), Yunnan.

The description of the flowers and stipules here as well as the extension of the geographic range into Yunnan are taken from two specimens provisionally identified here as Spiradiclis hainanensis, Li Heng 12449 and 12511.