One of the mysteries of the English language finally explained.
- another term for pteridosperm
- ‘One example, from the Calhoun Flora of Illinois, is a seed fern that bears prepollen (a kind of microspore) far bigger than any known wind-dispersed pollen.’
- ‘Furthermore, many of these so called ‘preferns’, have been previously - and often equally convincingly - assigned to such varied groups as lycopsids, seed ferns, and intermediates between sphenopsids and ferns.’
- ‘There is some agreement that both living and extinct cycads were derived from seed ferns, but paleobotanists still debate exactly if, when, and how this happened.’
- ‘Glossopteris, for example, was an extinct seed fern with distinctive leaf patterns.’
- ‘Large plants were dominantly conifers, followed by lesser amounts of cycads, seed ferns, and ginkgos.’
Top tips for CV writingRead more
In this article we explore how to impress employers with a spot-on CV.