3.4. Development of staminate flowers
The floral meristem is disc-shaped at the beginning (Fig. 6a). Then, the
abaxial side expands, becomes as sectorial (Fig. 6b). Petal primordia
initiate subsequently as clockwise pattern, starting from abaxial side
that overlapping with 1st stamen at abaxial side (Fig.
6c). Floral meristem expands at all sides (Fig. 6d). The
2nd stamen initiated, overlapping with
3rd and 4th petals (P3-P3) at the
adaxial side. Subsequently, the 3rd stamen arises at
abaxial side between 1st and 5thpetals (P1-P4) (Fig. 6e). The 4th and
5th stamens initiate at lateral sides of the floral
meristem (Fig. 6f). Formation of 1st and
2nd sepals at abaxial side is simultaneous with
elongation of the floral organs (Figs. 6g-i). Inception of carpel is
synchronous with differentiation of stamen into short filaments and
spherical anthers (Fig. 6j). The more differentiation of stamens into
filaments and cordate anthers, the more development of the carpels (Fig.
6k). In mature flower, conical (Fig. 6l) and bilabiate (Fig. 6m)
stylopodia and two sepals are developed (Fig. 6l-m). The longitudinal
section of the carpels indicating that ovaries well developed but
without ovules remnants.