Mitrasacmopsis quadrivalvis Jovet

Herb 8–40 cm. tall, with glabrous to sparsely hairy square stems.. Leaf-blades 0.8–3.2 cm. long, 0.1–1.1 cm. wide, acute or subacute but mucronulate at the apex, cuneate at the base, margin often narrowly revolute, glabrescent to scabridulous above, glabrous beneath or the midvein and margins ciliate; petiole obsolete or very short; stipular fimbriae up to 1.5–2 mm. long from a base 0.2–1.5 mm. long, hairy.. Pedicels obsolete or up to 3 mm. long in the fruiting stage.. Calyx puberulous to densely scabrid pubescent; tube shallow, 0.5 mm. long or less, 1–1.1 mm. wide; lobes 0.5–0.8 mm. long, 0.3 mm. wide.. Corolla white, pink or pale mauve, tube 0.6–1 mm. long, widest at the base; lobes ovate, 0.4–0.7 mm. long, 0.4 mm. wide, papillate inside.. Style 0.3–0.6 mm. long; stigmas linear, 0.2–0.3 mm. long.. Capsule 2 mm. wide, beak 1 mm. long and wide, puberulous to densely scabrid pubescent.. Seeds brown, ± 20 per capsule, ± 0.3 mm. long.. Fig. 32.