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Protogynous: (of dichogamous plants) having female parts of flowers developed before male parts, e.g. having flowers that function first as female and then change to male or producing pollen after the stigmas of the same plant are receptive. [6] Subandroecious: having mostly male flowers, with a few female or bisexual flowers. [24]
Autoicous – produces male and female sex organs on the same plant but on separate inflorescences. Bract – leaf is present below the flower. Cladautoicous – male and female inflorescences are on separate branches of the same plant. Dioicous – having two forms of gametophyte, one form bearing antheridia and one form bearing archegonia.
Spike of fruits- showing in succession (from below) female flowers, male flowers, and sterile flowers forming a ring of hairs borne on the spadix. Diagram of spadix In botany , a spadix ( / ˈ s p eɪ d ɪ k s / SPAY -diks ; pl. : spadices / ˈ s p eɪ d ɪ s iː z / SPAY -dih-seez , / s p eɪ ˈ d aɪ s iː z / spay- DY -seez ) is a type of ...
The distribution is usually on both sides of the groin and the center may be lighter in colour. [8] The rash may appear reddish, tan, or brown, with flaking, rippling, peeling, iridescence, or cracking skin. [14] If the person is hairy, hair follicles can become inflamed resulting in some bumps (papules, nodules and pustules) within the plaque.
Boophone disticha is a bulbous tropical and subtropical flowering plant, endemic to Africa.Commonly called the century plant [4] or tumbleweed, [3] Boophone disticha was first collected in 1781 from South Africa by Swedish botanist Carl Peter Thunberg and described by Carl Linnaeus as Amaryllis disticha. [2]
The stigma, together with the style and ovary (typically called the stigma-style-ovary system) comprises the pistil, which is part of the gynoecium or female reproductive organ of a plant. The stigma itself forms the distal portion of the style, or stylodia, and is composed of stigmatic papillae , the cells of which are receptive to pollen.
Male flower. Antennaria plantaginifolia is dioecious, meaning that the male and female flowers are borne on separate plants. It often forms colonies, sometimes consisting entirely of male or female plants. It does so in part through vegetative reproduction. Stolons emerging from the basal rosette take root and develop into new plants.
Being from the family Podocarpaceae, it is a dioecious tree, that is, the male and female parts of the trees are on separate plants. [2] The pollen cones are catkins and the female cones, which mature in one year, are reduced fleshy bracts that contain a single inverted ovule. It requires wind for pollination; it cannot self-pollinate.