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The filaments may be fused and the anthers free, or the filaments free and the anthers fused. Rather than there being two locules, one locule of a stamen may fail to develop, or alternatively the two locules may merge late in development to give a single locule. [13]
These two cells in addition to the spore wall make up an immature pollen grain. As the male gametophyte matures, the generative cell passes into the tube cell, and the generative cell undergoes mitosis, producing two sperm cells. Once the pollen grain has matured, the anthers break open, releasing the pollen.
Gynandrium – combined male and female structure. Gynostegium – adnation of stamens and the style and stigma (Orchidaceae). Included – Introrse – opening on the inside of the corolla, the stamens are contained within the margins of the petals. Monodelphous – stamen filaments united as a tube. Poricidal – anthers opening through ...
The two adjacent petals, the wings, surround the two bottom petals. The two bottom petals are fused together at the apex (remaining free at the base), forming a boat-like structure called the keel. The stamens are always ten in number, and their filaments can be fused in various configurations, often in a group of nine stamens plus one separate ...
The Cybercab’s sports-car looks and two-door, two-seat configuration – a nearly extinct layout in the wider U.S. auto market – puzzled some analysts who expected a robotaxi with more room ...
Having two lips, e.g. the form of the petal s in many irregular flowers. bilateral 1. Having two distinguishable sides, such as the two faces of a dorsiventral leaf. 2. Arranged on opposite sides, e.g. leaves on a stem; Compare distichous and opposite. 3. Bilaterally symmetrical, as in a leaf with a symmetrical outline. biloculate
Influencer Jaxon Tippet has died less than two weeks after his 30th birthday, per a post shared on the Australian fitness coach's Instagram. "It’s with a heavy heart that our beloved Jaxon has ...
A witness first saw the gun poking through a crack between the apartment door and the frame. There had been a knock and an eerie silence, then an attempt by two men to force the door open. Bryan Yeshion Schneps, a 21‑year‑old Temple University student, tried to prevent his attackers from gaining entry.