sinistrorse


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Related to sinistrorse: dextrose

sinistrorse

[¦sin·ə¦strȯrs]
(biology)
Twisting or coiling counterclockwise.
References in periodicals archive ?
Calycine colleters absent or present; corolla salveriform or funnelform; corolla-lobe aestivation sinistrorse; corolline corona often present below the petal sinuses behind stamen (usually much dissected in Allamanda) and infrastaminal appendages generally present; anther connective often broadened and with elongate apical extension; style head mostly with basal collar or lobes (no distinct basal collar in Plumeria, Himatanthus, or Mortoniella), mostly without upper wreath (well-developed upper wreath present in Allamanda) but often with free apices conspicuously enlarged; ovary apocarpous or syncarpous at the very base (postgenitally syncarpous in Allamanda), hemiinferior in Plumeria, Himalatanthus, and Mortoniellar; disc absent or present.
Leaves opposite; calycine colleters present or absent; corolla salveriform; corona absent; corolla-lobe aestivation sinistrorse or dextrorse; style head scarcely differentiated, without basal collar, body uniformly receptive; ovary congenitally syncarpous; disc mostly absent or adnate to ovary.
Galycine colleters absent; corolla salveriform (sometimes throat somewhat expanded in Condylocarpan); corolla lobes often deeply inflexed in bud; aestivation sinistrorse; corona absent; style head with neither basal collar nor upper wreath, body uniformly receptive; ovary apocarpous or syncarpous (Lepiniopsis and Chilocarpus); in Plectaneia carpels free except for narrow, congenitally fused region in the center of their ventral flanks) and up to 5-carpellate in Lepinia and Lepiniopsis often stipitate; disc absent, indistinct, or adnate.