and gynoecium maturation occurred simultaneously since the flower opening and the longevity observed was one day.
1 a, b), 2-forked dichasia to 1 x 1 cm, axillary to the distal most leaves, flowers with calyx, corolla and androecium
pentamerous or tetramerous (Figs.
5 X 4-6 mm; petals yellow, two external, oblong to ovate, 16-31 X 9-26 mm, two internal, oblong to obovate, 14-30 X 9-19 mm, cuculus orbicular, bent around the androecium
and gynoecium, 17-25 X 11-20 mm; stamens yellow to vinaceous, 8-18 mm long; staminoids yellow, 4-5 mm long; ovary yellow, setulose, 16-28 mm long; style green, 3-5 mm long.
Dipterocarpoid floral visitors, Dipterocarpus excepted, are pollen robbers: The geography and phylogeny of the distinctive dipterocarpoid androecium
, its anthers of generically distinct form and usually with diverse connectival appendages, are fundamental to understanding dipterocarp pollination biology and breeding systems, provide the primary basis for generic diagnosis, and thereby give insight into pollinator co-evolution as the subfamily met new opportunities; yet they receive no mention.
possess tricarpellary apocarpous pistil consisting of three independent carpels, while rudimentary androecium
is represented by two whorls of three staminodes each alternately arranged in antepetalous and antesepalous position (DeMason et al.
The axillary flowers contain androecium
comprising 3 stamens (Kumar et al.
Receptacle glabrous between androecium
of five stamens alternate to the corolla lobes with short filaments and elongated anthers.
The flowers are composed of 6 blue lilac tepals, persistent tepals fused along half their length into a perianth tube; the androecium
consist of six stamens inserts at different levels, with long-, mid- and short-styled morphs (hereafter referred to as the L, M and S morphs, respectively), and a yellow mark or nectar guide on the upper middle lobe.
consists of four stamens, two long (1.
Corolla dissected to show interior glabrous surface, except on the dorsal lobes where it is densely glandular; androecium
curled toward the corolla base indicating the flower was in the female stage.
Comparative floral development and androecium
structure in Malvoideae (Malvaceae s.