The number of stamens comprised by the androecium is sometimes the same as the number of petals, but often the stamens are more numerous or fewer in number than the petals. Anther wall : The mature anther wall consists of the following layers a. Epidermis b. Endothecium c. Middle layers d. Tapetum. An epidermal layer of cells that secretes an overlying chitinous cuticle, as in arthropods. Immediately after ecdysis, entry of water into the individual through the gills or gut causes inflation of the body that expands the new cuticle to its final size ( Capen, 1972 , Mykles, 1980 , Taylor and Kier, 2003 ). Hypodermal definition: of the hypodermis | Meaning, pronunciation, translations and examples These cells act as sporangial initials. (2) Development of anther and formation of microspores (Pollen grains) : The young anther consists of homogenous mass of paranchymatous cells surrounded by epidermis. b. We took advantage of the jam-1::gfp marker ( Mohler et al., 1998 ), which localizes to the adherens junctions surrounding the seam cells. (a) Formation of sporangial wall hypodermic: [ hi″po-der´mik ] 1. beneath the skin; injected into subcutaneous tissues. hypodermal: (hī′pə-dûr′məl) adj. A group of hypodermal cells are present at each corner of the young anther. The cells undergo repeated anticlinal divisions to cope up with the rapidly enlarging internal tissues. Other articles where Anther is discussed: angiosperm: The androecium: …terminal saclike structures (microsporangia) called anthers. A very young anther is made up of homogeneous meristematic cells and more or less oblong in shape. 1. In each of the four lobes, some of the hypodermal cells begin to act as archesporial initials. Of or relating to the hypodermis. 2. There are generally two pairs of spore-containing sacs … Parietal cells lie immediately below the epidermis. The seam cells are lateral hypodermal blast cells that donate daughter nuclei to the hypodermal syncytium after each cell division, and eventually fuse in adults (Sulston and Horvitz, 1977). derm n. 1. It soon becomes four lobed. a. Epidermis: It is single layered and protective in function. Lying below the epidermis. These divide by periclinal walls to form inner primary sporogenous cells or archesporium and outer primary parietal cells. Gradually the anther becomes a four-lobed structure, in each lobe hypodermal cells become differentiated by their shape and dense contents with distinct nucleus, these cells are called archespon'um or archesporial cells. hypodermal wall cell layers are replaced by microsporocyte-like cells (Hord et al., 2006). 2. a subcutaneous, injection; a syringe for making such an injection. The inner (L2) hypodermal cells divide periclinally to produce archesporial cells internally and primary parietal cells externally. 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