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Stamen is the Latin word meaning "thread" (originally thread of the warp, in weaving). [8]Filament derives from classical Latin filum, meaning "thread" [8]; Anther derives from French anthère, [9] from classical Latin anthera, meaning "medicine extracted from the flower" [10] [11] in turn from Ancient Greek ἀνθηρά (anthērá), [9] [11] feminine of ἀνθηρός (anthērós) meaning ...
Diagram of an anther in cross section. 1: Filament; 2: Theca; 3: Connective (the conducting vessels in red); 4: Pollen sac (also called sporangium) The androecium is one of the fertile cycles of flowers. The parts that make up the androecium are called stamens whose function is the generation of male gametophytes or pollen grains.
Most anthers are formed on the apex of a filament. An anther and its filament together form a typical (or filantherous) stamen, part of the male floral organ. The typical anther is bilocular, i.e. it consists of two thecae. Each theca contains two microsporangia, also known as pollen sacs.
Staminodial – (1) concerning a sterile stamen; (2) flowers with sterile stamens. Synandrous – anthers are connected . Syngenesious – anthers are united as a tube; the filaments are free . Tetradynamous – having six stamens, four of which are longer than the others.
The upper angle between one part of a plant and another, e.g. the stem and a leaf. axile On an axis; of a placenta, on the central axis of the ovary. axillary Borne in or arising from the axil, usually referring to the axil of a leaf. axis The main stem of a whole plant or inflorescence; also, the line along which this stem extends.
In today's puzzle, there are seven theme words to find (including the spangram). Hint: The first one can be found in the top half of the board. Here are the first two letters for each word: CA. TR ...
[2] The male stamen is inside the tube-shaped corolla of the disk floret. It has five anthers, five filaments, and produces pollen. The anthers and filaments are readily visible as separate entities in non-Asteraceae species. Here, they are fused together to form a cylinder, or tube, with their pollen on the inside only.
It produces two green pairs of linear leaves which are up to 15 cm long and about 1.5 cm wide. The second pair of leaves is normally longer and narrower. The yellow tepals are up to 3 cm long and 1 cm wide, the outer three with greenish-yellow or dull purple on the outside. The anthers and filaments are yellow. [2]