parietal placentation การใช้

• The flower has a syncarpous gynoecium ( fused-carpellate ovary ) with 5 carpels and has parietal placentation.
• Unlike other members of the Melianthaceae, " Greyia " has simple ( undivided ) ovaries with parietal placentation.
• It is three-carpelate and one or, more rarely, three-partitioned, with parietal placentation ( axile in the Apostasioideae ).
• The seeds, which are attached to the ovary wall ( parietal placentation ) and not to the center, are large and fairly flat with a large embryo that consists almost entirely of two cotyledons.
• A pepo was distinguished by being a fleshy berry with the seeds distant from the axis, and so nearer the fruit wall ( i . e . by having " parietal placentation " in modern terminology ).
• Maheshwari and Johri ( 1956 ) conducted an extensive investigation of the morphology of " Floerkea " noting that, among other things, the herbaceous habit, gynobasic style, unusual type of tetrasporic embryo sac and basal parietal placentation of the unitegmic, tenuinucellate ovules differ from the Geraniales which has among its woody to herbaceous members, ( at most ) lobed syncarpous gynoecia, monosporic embryo sacs, generally axile placentation and bitegmic, crassinucellate ovules.