Alejandra Vasco

TL;DR: A modern, comprehensive classification for lycophytes and ferns, down to the genus level, utilizing a community‐based approach, that uses monophyly as the primary criterion for the recognition of taxa, but also aims to preserve existing taxa and circumscriptions that are both widely accepted and consistent with the understanding of pteridophyte phylogeny.

TL;DR: It is concluded that an ambitious goal to describe 10 million species in less than 50 years is attainable based on the strength of 250 years of progress, worldwide collections, existing experts, technological innovation and collaborative teamwork.

TL;DR: A review of fern leaf morphology, evolution and development is timely because of recent interest in extending leaf evolutionary developmental studies to other species and lineages, particularly in lycophytes and ferns.

TL;DR: Contrary to trees, epiphyte abundance and diversity hardly differed between the landscapes, which calls for caution when explanations for distribution and dynamics of tree species are extrapolated to growth forms with a totally different ecology.

TL;DR: It is hypothesized that there is a deep homology of all leaves and that a sporangium-specific developmental program was coopted independently for the development of lycophyte and euphyllophyte leaves, and provides molecular genetic support for a paradigm shift in theories of lyCophyte leaf evolution.