Fig. 3From: Evolution and development of three highly specialized floral structures of bee-pollinated Phalaenopsis speciesDifferent floral developmental stages of Phalaenopsis equestris and P. pulcherrima. a. P. equestris; b. P. pulcherrima. Abbreviations: Ca = callus; L = labellum; Me = mentum; St = stelidia. Scale bar: 1 cm. Photographs by Dewi PramanikBack to article page