Elaphoglossum doanenseandElaphoglossum tonduzii: New Members ofElaphoglossumSect.Squamipedia(Dryopteridaceae) and Their Significance for Inferring the Evolution of Rhizome Habit and Nest-Forming Leaves within the Genus

Matos, Fernando B.; Vasco, Alejandra; Moran, Robbin C.

doi:10.1086/696687

Cited by 8 publications

(4 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among leptosporangiate ferns, Elaphoglossum is one of the most diverse genera of ferns and its nearly 600 species are characterized by simple entire leaves [ 34 ]. There are only six species of Elaphoglossum that have divided leaves and four of them belong to a monophyletic group of 20 species, Elaphoglossum section Squamipedia [ 35 , 36 , 37 ]. The species with divided leaves belonging to section Squamipedia are E. colombianum (Maxon) Mickel, E. moorei (E. Britton) Christ, E. peltatum (Sw.) Urban, and E. tripartitum (Hook.…”

Section: Introductionmentioning

confidence: 99%

Simple and Divided Leaves in Ferns: Exploring the Genetic Basis for Leaf Morphology Differences in the Genus Elaphoglossum (Dryopteridaceae)

Vasco

Ambrose

2020

IJMS

Self Cite

View full text Add to dashboard Cite

Despite the implications leaves have for life, their origin and development remain debated. Analyses across ferns and seed plants are fundamental to address the conservation or independent origins of megaphyllous leaf developmental mechanisms. Class I KNOX expression studies have been used to understand leaf development and, in ferns, have only been conducted in species with divided leaves. We performed expression analyses of the Class I KNOX and Histone H4 genes throughout the development of leaf primordia in two simple-leaved and one divided-leaved fern taxa. We found Class I KNOX are expressed (1) throughout young and early developing leaves of simple and divided-leaved ferns, (2) later into leaf development of divided-leaved species compared to simple-leaved species, and (3) at the leaf primordium apex and margins. H4 expression is similar in young leaf primordia of simple and divided leaves. Persistent Class I KNOX expression at the margins of divided leaf primordia compared with simple leaf primordia indicates that temporal and spatial patterns of Class I KNOX expression correlate with different fern leaf morphologies. However, our results also indicate that Class I KNOX expression alone is not sufficient to promote divided leaf development in ferns. Class I KNOX patterns of expression in fern leaves support the conservation of an independently recruited developmental mechanism for leaf dissection in megaphylls, the shoot-like nature of fern leaves compared with seed plant leaves, and the critical role marginal meristems play in fern leaf development.

show abstract

Section: Introductionmentioning

confidence: 99%

Simple and Divided Leaves in Ferns: Exploring the Genetic Basis for Leaf Morphology Differences in the Genus Elaphoglossum (Dryopteridaceae)

Vasco

Ambrose

2020

IJMS

Self Cite

View full text Add to dashboard Cite

show abstract

“…Since no morphological character allow distinguishing reliably section Elaphoglossum from sect. Squamipedia in Madagascar ( Rouhan, Rakotondrainibe & Moran, 2007 ; Matos, Vasco & Moran, 2018 ), the two sections are grouped in a single couplet.…”

Section: Taxonomic Resultsmentioning

confidence: 99%

Synoptic revision of the fern genus Elaphoglossum Schott ex J.Sm. (Dryopteridaceae) in Madagascar, with the description of 23 new taxa, all but one endemic

Rouhan¹

2020

PeerJ

View full text Add to dashboard Cite

After 15 years of field studies in Madagascar, especially focused on the overlooked fern genus Elaphoglossum (Dryopteridaceae), a synoptic revision of the genus is here presented. Based on more than 2,600 herbarium specimens including collections over 200 years, Elaphoglossum is the second most diversified fern genus in Madagascar, with 52 species and three subspecies (with 76% of endemism). It is to be compared to the 34 species treated by Tardieu-Blot in 1960 for the “Flore de Madagascar et des Comores” or the 38 species listed by Roux in 2009 in the seminal “Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighboring islands”. The 55 taxa represent five out of seven existing generic sections (sect. Amygdalifolia and sect. Wrightiana being monotypic and Neotropical): sect. Lepidoglossa (29 spp. and three subspp.), sect. Elaphoglossum (17 spp.), sect. Setosa (3 spp.), sect. Squamipedia (2 spp.), and sect. Polytrichia (1 sp.). Distribution is given for each species and subspecies, and detailed for each island or archipelago in the Western Indian Ocean (La Réunion, Mauritius, Seychelles, and Comoros). Twenty species and three subspecies are newly described, all but one endemic to Madagascar: Elaphoglossum ambrense Rouhan, Elaphoglossum andohahelense Rouhan, Elaphoglossum anjanaharibense Rouhan, Elaphoglossum approximatum Rouhan, Elaphoglossum brachymischum Rouhan, Elaphoglossum cerussatum Tardieu subsp. brunneum Rouhan, Elaphoglossum coracinolepis Rouhan, Elaphoglossum desireanum Rouhan, Elaphoglossum glabricaule Rouhan, Elaphoglossum gladiifolium Rouhan, Elaphoglossum leucolepis (Baker) Krajina ex Tardieu subsp. nanolepis Rouhan, Elaphoglossum leucolepis (Baker) Krajina ex Tardieu subsp. nigricans Rouhan, Elaphoglossum longiacuminatum Rouhan, Elaphoglossum patriceanum Rouhan, Elaphoglossum perangustum Rouhan, Elaphoglossum prominentinervulum Rouhan, Elaphoglossum rakotondrainibeae Rouhan, Elaphoglossum repandum Rouhan, Elaphoglossum sabineanum Rouhan, Elaphoglossum sinensiumbrarum Rouhan, Elaphoglossum subglabricaule Rouhan, Elaphoglossum tsaratananense Rouhan, and Elaphoglossum viridicaule Rouhan. Morphological description, distribution map, and original illustrations are provided for each new taxon. Novel identification keys to the sections and all species from Madagascar are also presented.

show abstract

“…only occurs on the trunks of Welfia palms (Moran & Russell, 2004 ), that the root mantles of tree fern trunks harbor more fern epiphytes than angiosperm trunks of the same diameter (Moran et al, 2003 ), and the first careful documentation of primary hemiepiphytism in ferns (Nitta & Epps, 2009 ; Lagomarsino et al, 2012 ). The latter in particular has led to many further discoveries in fern habits and has promoted discussion about the evolution of habits in ferns (Moran et al, 2010b ; Lóriga et al, 2014b ; Testo & Sundue, 2014 ; Fawcett & Sundue, 2016 ; Labiak et al, 2017 ; Matos et al, 2018 ; Watts et al, 2019 ).…”

Section: Patient Teacher With Plenty Of Punsmentioning

confidence: 99%

Robbin C. Moran, Fern and Lycophyte Curator- an Appreciation

2021

Self Cite

View full text Add to dashboard Cite

To mark the commencement of his retirement as Nathaniel Lord Britton Curator of Botany, and appointment as Curator Emeritus at the New York Botanical Garden, we pay tribute to Robbin Moran and impact on the botanical community with a brief synopsis of his career. Naturalist, fern expert, adored teacher—it is difficult to adequately pay tribute to his accomplishments, and his impact on botany in a single article. Robbin has published four books, 13 monographs of neotropical fern clades, over 170 scientific papers, and dozens of popular articles. He has named 115 new species, five new genera, and one family of ferns. He is eponymized by seven new species and the genus Moranopteris . We recount his earliest days and academic trajectory to become a leading researcher and educator in pteridology. We highlight his major influences, scientific accomplishments, and outreach to the botanical community.

show abstract

Elaphoglossum doanenseandElaphoglossum tonduzii: New Members ofElaphoglossumSect.Squamipedia(Dryopteridaceae) and Their Significance for Inferring the Evolution of Rhizome Habit and Nest-Forming Leaves within the Genus

Cited by 8 publications

References 27 publications

Simple and Divided Leaves in Ferns: Exploring the Genetic Basis for Leaf Morphology Differences in the Genus Elaphoglossum (Dryopteridaceae)

Simple and Divided Leaves in Ferns: Exploring the Genetic Basis for Leaf Morphology Differences in the Genus Elaphoglossum (Dryopteridaceae)

Synoptic revision of the fern genus Elaphoglossum Schott ex J.Sm. (Dryopteridaceae) in Madagascar, with the description of 23 new taxa, all but one endemic

Robbin C. Moran, Fern and Lycophyte Curator- an Appreciation

Contact Info

Product

Resources

About