Upper-and lower-case versions of the thorn character. Thorn or Ã¾orn (Ã¾, Ã¾) is a letter in the Old English, Gothic, Old Norse and modern Icelandic alphabets, as well as some dialects of Middle English.pper-and lower-case versions of the thorn character. Thorn or Ã¾orn (Ã¾, Ã¾) is a letter in the Old English, Gothic, Old Norse and modern Icelandic alphabets, as well as some dialects of Middle English.
part of stamen that produces pollen: Filament: Stalk that supports anther: Pistil: female part of flower: Stigma: sticky tip of pistil that collects pollen: Style: connects stigma to ovary: Ovary: place where seeds develop: Fruit: ripened ovary: Angiosperms: plant that produces seeds enclosed in fruit: Flower: reproductive structure of angiosperm: Sepals: protect developing flower
As in gymnosperms, the male gametophyte is the pollen grain. In order for fertilization to occur in most flowering plants, insects or other animals must transport the pollen to the pistil. A major distinguishing feature of angiosperms is the practice of double fertilization. An angiosperm ovule contains an egg cell and a diploid fusion nucleus, which is created through the joining of two polar nuclei within the ovule.