Spermatophyta

Plant the seeds of Spermatophyta (Greek, seed = seed, Phyton = plant) is a group of plants that items, namely the body in the form of seeds. Seed is part of the ovule and stopped at a new candidate each item, namely the institution. The Institute will take place after fertilization or pollination followed by characteristics of the seed body characteristics, including size, shape, structure, and function of the body.
The size and shape of the plant seeds macroscopic body size vary in height. The highest seed plant tree with a height of over 100 m. Sequoiadendron giganteum d konifeerbome of Yosemite National Park, California, with the benefits of 115 m height and a diameter of about 14 m. Habit or stature various plant seeds, trees, such as wood, Duku, coconut, banyan, fir, Perduk, such as roses, peacock flower, hibiscus, shrubs, herbs and fruit strawberries, lilies and purslane flowers.
Structure and function ...

Plant seeds heterospora . Plant seeds and set up a structure megasporangia mikrosporangia collected in a short sumbuh . For example , structures such as cone or strobilus on conifers and flowers on the flowering plants . As in other plants , spores of seed plants produced by meiosis in sporangia . But in plant seeds , megaspores is not removed , but retained . Megasporangia the development of the female gametophyte support and food and water supply . Female gametophyte in the sporangium remain matures and sporofit memlihara next generation after fertilization . In mikrosporangium , meiosis micro product . Micro tracks sporofit reach the formation of the pollen that grow in the direction toward the ovule the female gametophyte to fertilize germinate . In seed plants , the term micro is the pollen, a pollen sac mikrosporangium and mikrosporofil is benangsari . The term is a biological Institute megaspore ( embryo sac ) , megasporangium an ovule and megasporofil a carpels ( karpela ) .Way of life and reproductive habitat