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
Defining Characteristics. The term angiosperm derives from two Greek words: angeion, meaning vessel, and sperma, meaning seed.. The angiosperms are those plants whose seeds develop within a surrounding layer of plant tissue, called the carpel, with seeds attached around the margins.This arrangement is easily seen by slicing into a tomato, for example.owever, some current studies suggest that endosperm is not unique to angiosperms. Angiosperm flowers are generically characterized by having four whorls, or sets of organs: sepals, petals, stamens, and carpels.