Information om | Engelska ordet TETRAMEROUS

Exempel på hur man kan använda TETRAMEROUS i en mening

• Flower parts occur in multiples of four (tetramerous), but the four tepals are fused into a long, narrow perianth-tube topped by a closed cup (the limb); the filament of each stamen is fused along its entire length with the midrib of a tepal, so that the anthers appear almost sessile, trapped within the limb; and the four carpels form a single compound pistil, the apex of which is also trapped within the limb.
• Monochaetum is characterized by its tetramerous flowers, prevailingly dimorphic stamens with dorsally appendiculate anthers, capsular fruits that are free from the hypanthium, and cochleate seeds.
• Both have male flowers and female flowers, not hermaphrodite as in Hecastocleis, while Gymnarrhena has (trimerous or) tetramerous male florets, not pentamerous.
• —The regeneration of limbs in the Mantidæ, and the constant occurrence of a tetramerous tarsus in limbs regenerated after self-mutilation among the Orthoptera pentamera.
• The lower part of the tetramerous perianth is fused into a tube, the middle part that consist of the claws is ruptured by the style at anthesis, the parts coiling, the lobe facing the center of the flower head with fine very short, powdery hairs, the other lobes are thickly set with felty hairy.

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