WebDec 11, 2015 · Perianth curvature occurs as a result of a stronger elongation of the abaxial flank. At S3 initiation of trichomes in the apex of the growing perianth occurs (Figure 2G ), and the six anther primordia become evident at the bottom of the perianth above the forming inferior ovary (Figures 2G and 3A,B ). WebJul 30, 2024 · In Zephyranthes, the degree of fusion of the perianth into a tube is reflected in flower form, filament length, staminal position, and the opening of the bud. Flowers with much-abbreviated perianth tubes are subrotate; with increasing degrees of perianth fusion, flower form shifts from subrotate to funnelform to salverform.
Section A. Structure and Specialized Characters: Perianth …
WebIn perigynous flowers, a hypanthium (a floral tube formed from the fusion of the stamens, petals, and sepals) is attached to the receptacle below the gynoecium and surrounds the ovary; the ovary is superior, and the free parts of the petals, sepals, and stamens are attached to the rim of the hypanthium. WebThe perianth is formed by three almost completely fused hypogynous tepals; the window is schyzogenous, unique among angiosperms, and according to the fossil record, it has been in the genus since the Early … suttle boxes
Perianth Definition & Meaning - Merriam-Webster
WebIn Zephyranthes, the degree of fusion of the perianth into a tube is reflected in flower form, filament length, staminal position, and the opening of the bud. Flowers with much-abbreviated perianth tubes are subrotate; with increasing degrees of perianth fusion, flower form shifts from subrotate to funnelform to salverform. WebJun 11, 2015 · To fuse or not to fuse: convergent origins of perianth fusion and separation Morphological diversity in multicellular organisms is largely defined by variation in the … WebJul 30, 2024 · Leaf-blade dull green, to 1 mm wide.Spathe (2–) 3–4 cm. Flowers erect; perianth white, sometimes tinged and veined pink, salverform, (11–) 12–15.4 cm; perianth-tube primarily white, 9–12.6 cm, diam. uniform, 3/4 or more perianth length, at least 15 times filament length, 3–5 times spathe length; tepals often reflexed; stamens fasciculate, … suttle booter download