Family Fabaceae differs from Solanaceae and Liliaceae. With respect to the stamens, pick out the cha

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Question

Family Fabaceae differs from Solanaceae and Liliaceae. With respect to the stamens, pick out the characteristics specific to family Fabaceae but not found in Solanaceae or Liliaceae.

Accepted Answer

Correct Answer: D — Diadelphous and Dithecous anthersStep-by-step Solution:In Fabaceae (Papilionatae/Leguminosae), the androecium typically consists of 10 stamens arranged in a diadelphous condition — 9 stamens are fused together by their filaments into a bundle (tube), and the 10th (posterior) stamen remains free. This is written as (9)+1. Additionally, the anthers of Fabaceae are dithecous — each anther has two thecae (pollen sacs), which is the typical angiosperm anther condition. This combination of diadelphous arrangement and dithecous anthers is characteristic and diagnostic of Fabaceae.Why other options are incorrect: Polyadelphous and epipetalous (A) — polyadelphous (multiple bundles of fused filaments) is seen in Citrus; epipetalous (stamens fused to petals) is characteristic of Solanaceae, not Fabaceae. Monoadelphous and monothecous (B) — monoadelphous (all filaments fused into a single tube) is characteristic of Malvaceae (e.g., Hibiscus); monothecous anthers are also seen in Malvaceae. Epiphyllous and dithecous (C) — epiphyllous (stamens attached to perianth/tepals) is the characteristic of Liliaceae, not Fabaceae.Key Concepts:Fabaceae androecium: Diadelphous: (9)+1; 10 stamens; dithecous anthers; dorsifixed or versatile.Solanaceae androecium: Epipetalous (5 stamens attached to corolla tube); dithecous.Liliaceae androecium: Epiphyllous (6 stamens attached to tepals); dithecous.Malvaceae androecium: Monoadelphous (all filaments fused); monothecous; indefinite number of stamens.

Family Fabaceae differs from Solanaceae and Liliaceae. With respect to the stamens, pick out the characteristics specific to family Fabaceae but not found in Solanaceae or Liliaceae.

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Family Fabaceae differs from Solanaceae and Liliaceae. With respect to the stamens, pick out the characteristics specific to family Fabaceae but not found in Solanaceae or Liliaceae.

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