FLORAL INITIATION AND DEVELOPMENT OF TRICYRTIS HYBRIDA

摘要

Morphological development of inflorescence and floral organs in Tricyrtis hybrida were determined using scanning electron microscopy (SEM). Inflorescence of Tricyrtis was a heteromorphous compound inflorescence; the main axis was indeterminate and secondary axes were determinate. The apex of the main axis produced primary bracts continuously, but the apex of each axil of the primary bracts produced a secondary bract and terminated in the first flower. The secondary bract subtended an axil that produced a bract and terminated in the second flower. Tertiary and higher order bracts and flowers appeared similarly, leading to the formation of a cincinnus. The flowers consisted of three outer and inner perianths, six stamens, and a pistil, as in other Liliaceae plants. The basal part of outer perianths swelled and developed to spurs in later development.