Plant reproductive morphology be identical isospores or come in different sizes (microspores and megaspores), but strictly speaking, spores and sporophytes are neither male nor female because they do not produce gametes. The alternate generation, the gametophyte, produces gametes, eggs and/or sperm. A gametophyte can be monoicous (bisexual), producing both eggs and sperm or dioicous (unisexual), either female (producing eggs) or male (producing sperm). In the bryophytes (liverworts, mosses and hornworts), the sexual gametophyte is the dominant generation. In ferns and seed plants (including cycads, conifers, flowering plants, etc.) the sporophyte is the dominant generation. The obvious visible plant, whether a small herb or
The Ferns of Great Britain and Ireland was Bradbury and Evans. Bradbury patented the process after seeing the invention of Alois Auer - though the identity of its inventor grew to be a subject of debate. The technique was briefly in vogue, but did not persist in printing. Bradbury, along with Auer, believed the technique to be an enormous advance in printing. However, the plants and other subjects that could be successfully printed in this way were few. Ferns were one of the few plants with a form that could be replicated, the shape of the fronds being largely two-dimensional. In this work the ferns, a plant