Belongs within: Leptosporangiatae. Matoniaceae: ferns with a heritage Published 13 January 2019 Ferns are one of those groups of organisms, like sharks and cockroaches, that are not really as ancient as most people imagine. For all that ferns are indelibly associated in the public conscience with antediluvian imagery of steamy coal swamps and great lumbering… Continue reading Matoniaceae


Belongs within: Monilophyta.Contains: Equisetum. The Equisetopsida includes the modern horsetails, Equisetum, and their fossil relatives. Members of this group have whorled leaves, and most have a eustele stem structure with a hollow pith surrounded by vascular bundles (Doyle 1998). Equisetopsida [Equisetophyta, Sphenophyta, Sphenophytae, Sphenopsida] | i. s.: Equisetires keuperianaW70 |–Pseudobornia [Pseudoborniaceae, Pseudoborniales]C93 | `–P. ursina… Continue reading Equisetopsida


Belongs within: Leptosporangiatae. The Lomariopsidaceae is a family of tropical hemiepiphytic ferns. It’s not what you think Published 22 July 2009 A little less than a year ago, I mentioned the strange and extremely cool phenomenon of independent gametophytes in ferns—cases where the tiny haploid gametophyte generation of a fern is able to reproduce asexually… Continue reading Lomariopsidaceae


Belongs within: Polypodiales. The Thelypteridaceae are a mostly tropical family of ferns, whose distinguishing features include an indument of transparent needle-like hairs and an absence of blade scales (A. R. Smith). Characters (from A. R. Smith): Plants terrestrial or on rock (occasionally epiphytic). Stems creeping to erect, scaly at apex. Leaves monomorphic or somewhat dimorphic… Continue reading Thelypteridaceae


Belongs within: Leptosporangiatae.Contains: Aspidiaceae, Lindsaeaceae, Hypolepis, Parkeriaceae, Pteridaceae, Cystopteridaceae, Asplenium, Hymenasplenium, Thelypteridaceae, Woodsia, Blechnaceae, Athyrium, Diplazium, Bolbitidaceae, Dryopteridaceae, Nephrolepis, Davalliaceae, Grammitidaceae, Polypodium, Pleopeltis, Pyrrosia, Nephrodium. The Dennstaedtiaceae is a cosmopolitan family of mostly terrestrial ferns. Though primarily tropical, species of Pteridium (bracken) are found in almost all habitats and P. aquilinum is perhaps the world’s… Continue reading Polypodiales


Belongs within: Leptosporangiatae. The Dicksoniaceae are a group of mostly terrestrial (occasionally epiphytic) ferns, most of which are tree ferns though some have creeping rhizomes. They are distinguished from other tree ferns in the Cyatheaceae by having hairs rather than scales on the trunk. Members of the Dicksoniaceae are found in the tropics, as well… Continue reading Dicksoniaceae


Belongs within: Pteridaceae. The Vittariaceae are a group of mostly epiphytic or lithophytic ferns found primarily in damp forests of the Old and New World tropics. A number of species are known to have ribbon-shaped gametophytes that are able to propagate themselves asexually through filamentous gemmae. Characters (from Lindsay 2003): Plants with creeping rhizomes on… Continue reading Vittariaceae


Belongs within: Polypodiales.Contains: Cheilanthes, Vittariaceae, Adiantum, Pteris. The Pteridaceae is a cosmopolitan family of ferns with abaxial sori lacking indusia or protected by a reflexed or revolute leaf margin (M. D. Windham). The molecular phylogenetic analysis of ferns by Schneider et al. (2004) suggested that the Pteridaceae may be paraphyletic with regard to the Vittariaceae.… Continue reading Pteridaceae


Belongs within: Polypodiales. The Davalliaceae is a family of mostly epiphytic ferns found in tropical and warm-temperate parts of the Old World. From tree moss to tree ferns Published 24 May 2011 Epiphytes seem to be the way to go here lately: after having covered a family of epiphytic mosses last week, I’m going to… Continue reading Davalliaceae


Belongs within: Polypodiales. The Grammitidaceae is a mostly epiphytic family of ferns. Many species are found in montane cloud forests. Characters (from A. R. Smith): Plants perennial, mostly small, on rock or commonly epiphytic [rarely terrestrial]. Stems long- to short-creeping or suberect, usually unbranched, bearing scales [rarely scales absent], solenostelic (having phloem on both sides… Continue reading Grammitidaceae