Pollen as large as about 90–100 µm. In angiosperms, during flower development the anther is composed of a mass of cells that appear undifferentiated, except for a partially differentiated dermis. As the flower develops, four groups of sporogenous cells form within the anther. The fertile sporogenous cells are surrounded by layers of sterile cells that grow into the wall of the pollen sac. Some of the cells grow into nutritive cells that supply nutrition for the microspores that form by meiotic division from the sporogenous cells. In a process called microsporogenesis, four haploid microspores are produced from each diploid sporogenous cell
My Heart Is a Flower by Phil Morrison. During the parts of the video that accompany the sung sections of the song, the band performs in a large, colorful garden, with multi-instrumentalist Chris Xefos often playing in a bear costume. During the part of the video that accompanies the spoken section, Hall plays chutes and ladders in a dimly lit room with a woman played by Juliana Hatfield. The woman flosses her teeth before narrowly avoiding a kiss from Hall. My Heart Is a Flower "My Heart Is a Flower" is a song by avant-garde band King Missile. It was the only single from the