Spermatophyte plants that have unenclosed, "naked seeds": The fifth extant division is the flowering plants, also known as angiosperms or magnoliophytes, the largest and most diverse group of spermatophytes. Angiosperms possess seeds enclosed in a fruit, unlike gymnosperms. In addition to the taxa listed above, the fossil record contains evidence of many extinct taxa of seed plants. The so-called "seed ferns" (Pteridospermae) were one of the earliest successful groups of land plants, and forests dominated by seed ferns were prevalent in the late Paleozoic. "Glossopteris" was the most prominent tree genus in the ancient southern supercontinent of Gondwana during the Permian
Unwins Seeds A1(M) just north of the A14 Alconbury junction. It has garden seeds for flowers and plants. It has the largest share of the UK amateur seed market. Unwins Seeds Unwins Seeds is a British seed company based in Alconbury Weston, Huntingdon in Cambridgeshire. "The Times" describes Unwins as "a firm that has grown ... to become one of the most familiar features of Britain’s horticultural landscape", and the BBC calls the company "world-famous". Unwins Seeds was formed in 1903 by William Unwin by selling sweet pea seeds. His son Charles, who had an interest in sweet peas, joined the business