Drosera biflora

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Drosera biflora

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Description

Acaulescent glabrous herb forming a rosette, no more than2 cm tall. Leaves spathulate, 6 mm long, petiole and blade well defined; stipules 1-1.5 mm long, 4-5-partite; petiole 3 x 0.8 mm; blade circulate or broadly elliptic, 3 x 2 mm. Inflorescences 1-2 per plant, 2-3 cm long, 2-3-flowered; peduncle erect, 1.5-2 cm long. Flowers with sepals ovate, joined at base, 2-3 x 1.5 mm, margin entire; petals white, spathulate, 3-4 mm long; stamens 2.5-3 mm long; pollen unknown; ovary with 3 styles, bipartite near base. Seeds foveolate, ovate, almost circulate, 0.35-0.4 x 0.3 mm, covered with granulate wax.

Distribution

Guyana present present, Southern America: Brazil North (Amazonas present); Brazil Northeast (Maranhao present); Venezuela (Venezuela present)
Venezuela (Amazonas), Guyana and Brazil (Maranhão); 7 collections studied, 2 from the Kaieteur Savanna in Guyana (GU: 2).

Notes

D. pusilla has been used as the correct name for this species since the publication of the Nova genera et species plantarum (Kunth 1815-1825). In this work, D. biflora is mentioned as a synonym. However, Roemer & Schultes validly published D. biflora one year earlier, using the name proposed by Willdenow on the sample deposited in Berlin.