6. Cyclopogon argyrifolius (Barb.Rodr.) Szlach. & Rutk.,

Phylogeny Taxon. Subtr. Spiranthinae Stenorrhynchidinae Cyclopogoninae Centr. S. Amer.: 186. 2008.

Terricolous herb (Flora do Brasil c2020). Leaves 5, petiolate, distributed along the caulome; blade dark green, immaculate, membranaceous, flat, convolute, linear, obscurely parallel-veined, apex acute. Inflorescence in raceme, terminal, multiflowered, pilose. Flowers resupinate, ecalcarate; sepals and petals green, immaculate; lip white, trilobed.

Distribution: Restricted to Brazil and endemic to the Atlantic Forest domain (Flora do Brasil c2020).

Specimen examined: 7 Jan 2004 (fl), L.T.J. Cardoso 446 (RB).