Pollen cell. In flowering plants the vegetative tube cell produces the pollen tube, and the generative cell divides to form the two sperm cells. Pollen is produced in the microsporangia in the male cone of a conifer or other gymnosperm or in the anthers of an angiosperm flower. Pollen grains come in a wide variety of shapes, sizes, and surface markings characteristic of the species (see electron micrograph, right). Pollen grains of pines, firs, and spruces are winged. The smallest pollen grain, that of the forget-me-not ("Myosotis" spp.), is around 6 µm (0.006 mm) in diameter. Wind-borne pollen grains can be
The Flower Girl then, other works have also been adapted into movies "under his guidance", including "The Flower Girl". The opera was intended to promote the communist ideology, by incorporating themes such as the class struggle against the bourgeois; such themes were similarly maintained in the film. In April 1972, the film adaptation was officially launched. The film was directed by Choe Ik-kyu and the script was written by Pak Hak; "Paekdu-san Group" was responsible for the production of the film. According to Paul Fischer, the author of "A Kim Jong-Il Production", "it is almost impossible to exaggerate" the importance of "The Flower