AFRICAN

ORCHIDS

A key to the genus of Cheirostylis Blume

1a. Leaves ovate, shortly acuminate, rounded or slightly cordate at base, 1-4 cm. long, 0.8-2.5 cm. broad, petiole shorter than lamina; labellum equalling the perianth or slightly longer, 3.5-5.5 mm. long; herb 10-30 cm. high, stem creeping at base; raceme dense, short, up to 20-flowered; perianth 3.5-4.8 mm. long; labellum lobes broad, divergent, entire or obscurely toothed Cheirostylis lepida
1b. Leaves broadly ovate or orbicular-ovate, very shortly acuminate, distinctly cordate at base, 7-18 mm. long, 6-16 mm. broad, petiole about equalling lamina; labellum distinctly longer than the perianth, 4.8-5.8 mm. long; herb 7-16 cm. high, creeping at base; raceme short, 3-10-flowered; perianth 3.5-4.2 mm. long; labellum lobes broad, divergent, distinctly toothed Cheirostylis divina

Species without a key Cheirostylis nuda (Thouars) Ormerod
World Checklist of Monocotyledons. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/monocots/ accessed 01/04/2020