dorsifixed


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dorsifixed

(of ANTHERS) attached at the back.
References in periodicals archive ?
Flowers larger than 4 cm in length, pedicellate, bisexual, corolla 6-merous; stamens longer than width, dimorphic, filaments slender, anthers dorsifixed.
inajai, (six in number, with wider filaments at the base; anthers with asymmetrical tips, dorsifixed, and longitudinal in dehiscence, introrse) are confirmed with the observations in species of the genera Pelagodoxa and Sommieria (Stauffer et al.
Flowers of Saxifragaceae are most easily distinguished from those of Itea by the position of the anther attachment, basifixed with the filament inserted into a pit in Saxifragaceae, dorsifixed without a pit in Itea; and degree of fusion of the carpels, generally distally free with unfused styles and stigmas in Saxifragaceae, generally fused with consistently fused stigmas in Itea (Kubitzki, 2007a; Soltis, 2007).
4 mm, rounded; stamens subequal, shorter than the petals, filaments white, laminar, linear-triangular, 2-3 mm long, anthers yellow, oblong, dorsifixed, ca.
Species of Didymaea are characterized by their procumbent or climbing stems, opposite leaves with ovate, oblong-ovate, lanceolate, elliptic, or rarely linear blades, small, shallowly to deeply bilobed or geminate interpetiolar stipules, axillary inflorescences with small, bisexual homostylous flowers with calyces reduced or absent, small, white to purple corollas with short tubes and 4-valvate lobes, 4 stamens with dorsifixed anthers, 2-locular ovaries with one axillary ovule per locule, and black, drupaceous fruits that are dimidiate and deeply bisulcate or sometimes subglobose.
1A) have well-developed ovaries with three white stigmatic lobes, the six staminodes rest over broad filaments and consist of minute globose structures; staminate flowers have six stamens with dorsifixed green anthers and a rudimentary empty pistillode with three erect stigma remnants (Fig.
Stamens included; filaments complanate, lilac toward the apex, the antepetalous ones adnate to the petals for 6-8 mm, the antesepalous ones free; anther base obtuse-sagittate, apex apiculate, apiculus nigrescent, dorsifixed above the base at 1/3 of its length; pollen globose, diporate, exine psillate; stigma conduplicate-spiral, ellipsoid-capitate, lilac-purple, margins crenulate-lacerate; ovary obconic, trigonous, 8-9 mm long, 6-7 mm in diameter at the apex, white, glabrous, bearing inconspicuous longitudinal sulcus; placentation apical; ovules shortly caudate; epigynous tube inconspicuous, ca.
15-30 x 3-6 mm], anthers usually dorsifixed near the base (vs.
The strict consensus places Silvianthemum as sister to Quintinia with dorsifixed anther attachment as synapomorphy (Fig.
2 mm long, base sagittate, apex acute and apiculate, dorsifixed at 1/3 of its length above the base; stigma conduplicate, ca.
This fossil was reported to have racemose inflorescence fragments, spikelets with two glumes that are keeled, two toters (the bracts are presumed to be lemmas and paleas but are not well preserved), and a total of six exserted dorsifixed stamens.