Flowers and inflorescences often have small or large, often leaf-like organs, called bracts or acteoles. When present, bracts are found under each branch or branchlet of the inflorescence racteate), while bracteoles are borne on or at the base of the pedicels of the flowers (bracteolate). hen they are absent, the corresponding terms are ebracteate and ebracteolate. Some authors apply e term bract to the leaf-like structures subtending one flower. The term involucre is applied to the norl of bracts or bracteoles at a node enveloping an inflorescence or a flower. The usually dry bracts closing the flowers in the grasses and sedges are called glumes while the inner chaff-like scales in e heads of certain Compositae, the inner scales of grasses, the scales on the rootstocks and stipes of ms, etc., are called paleae (sing. palea). A flower is complete when all four whorls or sets of organs are present and incomplete when o or three of the whorls of organs are absent. When the stamens and the carpels are present and ly developed, regardless of whether the perianth is present or absent, the flower is called perfect, mexual, or hermaphroditic. When one of the fertile sets of organs is imperfect or wanting, the flower called imperfect or unisexual. Imperfect flowers may be staminate or male when with stamens but -or only rudimentary carpels and carpellate (pistillate) or female when with carpels but nor or only timentary stamens. Incomplete flowers are naked when both calyx and corolla are absent and apetalous when the rolla is absent and only the calyx is present. When there is but one set of floral envelopes present it always considered to be the calyx, the petal-like sepals referred to as petaloid. Plants are called monoecious when both male and female flowers are borne on the same plant as Cucurbita maxima (squash); dioecious when male flowers are borne on one individual and female
Flowers and inflorescences often have small or large, often leaf-like organs, called bracts or acteoles. When present, bracts are found under each branch or branchlet of the inflorescence racteate), while bracteoles are borne on or at the base of the pedicels of the flowers (bracteolate). hen they are absent, the corresponding terms are ebracteate and ebracteolate. Some authors apply e term bract to the leaf-like structures subtending one flower. The term involucre is applied to the norl of bracts or bracteoles at a node enveloping an inflorescence or a flower. The usually dry bracts closing the flowers in the grasses and sedges are called glumes while the inner chaff-like scales in e heads of certain Compositae, the inner scales of grasses, the scales on the rootstocks and stipes of ms, etc., are called paleae (sing. palea). A flower is complete when all four whorls or sets of organs are present and incomplete when o or three of the whorls of organs are absent. When the stamens and the carpels are present and ly developed, regardless of whether the perianth is present or absent, the flower is called perfect, mexual, or hermaphroditic. When one of the fertile sets of organs is imperfect or wanting, the flower called imperfect or unisexual. Imperfect flowers may be staminate or male when with stamens but -or only rudimentary carpels and carpellate (pistillate) or female when with carpels but nor or only timentary stamens. Incomplete flowers are naked when both calyx and corolla are absent and apetalous when the rolla is absent and only the calyx is present. When there is but one set of floral envelopes present it always considered to be the calyx, the petal-like sepals referred to as petaloid. Plants are called monoecious when both male and female flowers are borne on the same plant as Cucurbita maxima (squash); dioecious when male flowers are borne on one individual and female
Chapter4: Management Practices For Finfish
Section: Chapter Questions
Problem 23SA
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What are the descriptive terms for the position of flower or inflorescence in these figures based on the text?
Transcribed Image Text:5.
3.
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Transcribed Image Text:Flowers and inflorescences often have small or large, often leaf-like organs, called bracts or
bracteoles. When present, bracts are found under each branch or branchlet of the inflorescence
(bracteate), while bracteoles are borne on or at the base of the pedicels of the flowers (bracteolate).
When they are absent, the corresponding terms are ebracteate and ebracteolate. Some authors apply
the term bract to the leaf-like structures subtending one flower. The term involucre is applied to the
whorl of bracts or bracteoles at a node enveloping an inflorescence or a flower. The usually dry bracts
enclosing the flowers in the grasses and sedges are called głumes while the inner chaff-like scales in
the heads of certain Compositae, the inner scales of grasses, the scales on the rootstocks and stipes of
ferns, etc., are called paleae (sing, palea).
A flower is complete when all four whorls or sets of organs are present and incomplete when
Cne or three of the whorls of organs are absent. When the stamens and the carpels are present and
fally developed, regardless of whether the perianth is present or absent, the flower is called perfect,
bisexual, or hermaphroditic. When one of the fertile sets of organs is imperfect or wanting, the flower
is called imperfect or unisexual. Imperfect flowers may be staminate or male when with stamens but
NO or only rudimentary carpels and carpellate (pistillate) or female when with carpels but nor or only
Tudimentary stamens.
Incomplete flowers are naked when both calyx and corolla are absent and apetalous when the
Corolla is absent and only the calyx is present. When there is but one set of floral envelopes present it
is always considered to be the calyx, the petal-like sepals referred to as petalold.
Plants are called monoecious when both male and female flowers are borne on the same plant as
in Cucurbita maxima (squash); dioecious when male flowers are borne on one individual and female
flowers on another as in Antidesma (bignay); and polygamous when both erfect and imperfect flowers
(either male or female) are borne on the same plant.
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