Fig. 1

Floral development of Cymbidium goeringii. a–e Scanning electron micrograph (SEM) of early floral developmental stages of wild-type C. goeringii. Bar = 100 mm. Im, inflorescence meristem; Fm, floral meristem; Se, sepal primordium; Pe, petal primordium; Li, lip primordium; Co, column primordium. (f-h) developing floral bud, Bar = 1 cm. f potential floral bud initiated in the lateral buds of developing shoots. g semi-endodormant floral bud. h developing bud after cold-treatment in winter. i blooming flower