Издательство: | Книга по требованию |
Дата выхода: | июль 2011 |
ISBN: | 978-6-1322-1181-1 |
Объём: | 80 страниц |
Масса: | 141 г |
Размеры(В x Ш x Т), см: | 23 x 16 x 1 |
High Quality Content by WIKIPEDIA articles! Xiphopteris ascensionense is a species of fern in the Grammitidaceae family. It is endemic to Ascension Island. Its natural habitats are introduced vegetation. It is threatened by habitat loss. A fern is any one of a group of about 12,000 species of plants. Unlike mosses, they have xylem and phloem. They have stems, leaves, and roots like other vascular plants. Ferns do not have either seeds or flowers (they reproduce via spores). By far the largest group of ferns are the leptosporangiate ferns, but ferns as defined here include horsetails, whisk ferns, marattioid ferns, and ophioglossoid ferns. The term pteridophyte also refers to ferns.
Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.