[New species of Dennstaedtia (Filicales: Dennstaedtiaceae) to Mexico].
Dennstaedtia gracilis A. Rojas et Tejero (Dennstaedtiaceae) is herein described and illustrated as a new species endemic to Mexico. Its belongs to the group of winged adaxial secondary costae species but it differs by the combination of characters as smaller fronds, deltate pinnules and lobed segment apex.
Alexander Fco, Rojas-Alvarado +1 more
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Prescribed fire effects on groundcover vegetation over time. [PDF]
General EcologyThe students and researchers at UMBS have a long history of performing succession-themed studies in the Station's experimental burn plots. This project focused on how post-fire succession has affected current plot groundcover diversity and
Johns, Stefania M. +2 more
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Nomenklatorisch-taxonomische Änderungen in der 16. Auflage der von W. Rothmaler begründeten Exkursionsflora von Deutschland [PDF]
1996 ist die 16. Auflage des zweiten Bandes der Exkursionsflora erschienen (ROTHMALER 1996). Verschiedene Kapitel dieses Bandes wurden umfassend überarbeitet oder neu erstellt. Zahlreiche für Deutschland neue Arten wurden aufgenommen und in die Schlüssel
Braun, Uwe
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Una especie nueva de Dennstaedtia (Filicales: Dennstaedtiaceae) para México
Dennstaedtia gracilis A. Rojas et Tejero (Dennstaedtiaceae) es aquí descrita e ilustrada como una especie nueva endémica de México. Pertenece al grupo de especies que presentan un ala dorsal en la costa de las pínnulas pero difiere por la combinación de caracteres como hojas más pequeñas, rizoma delgado, pínnulas deltado-lanceoladas y ápice de los ...
Rojas-Alvarado, Alexander Fco. +1 more
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Editorial: Biology, systematics, and evolution of ferns and lycophytes in the omics era. [PDF]
Salino A, Rouhan G, Kuo LY, Almeida TE.
europepmc +1 more source
New evidence of the emergence of the East Asian monsoon in the early Palaeogene. [PDF]
Su LF +5 more
europepmc +1 more source
Wallum on the Nabiac Pleistocene barriers, lower North Coast of New South Wales [PDF]
Wallum is widespread on coastal dunefields, beach ridge plains and associated sandy flats in northern NSW and southern Queensland. These sand masses contain large aquifers, and the wallum ecosystem is considered to be generally groundwater-dependent ...
Griffith, Stephen J., Wilson, R.
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Fase sexual de los helechos Odontosoria schlechtendalii y Odontosoria scandens (Dennstaedtiaceae)
Los resultados de los estudios sobre morfogénesis de la fase sexual de Odontosoria schlechtendalii y O. scandens son presentados en este trabajo. En O. schechlechtendalii y O. scandens las esporas son triletes, no clorofílicas, carecen de perina, la exina es lisa, ligeramente granulada a retuculata y la germinación es tipo Vittaria.
Granados, Beatriz +2 more
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Le Pteridofite europee: la loro tassonomia e nomenclatura oggi [PDF]
Gli pteridologi sono tutt'ora in grande disaccordo circa la tassonomia e nomenclatura di alcune famiglie, generi e specie delle Pteridophyta. Esso riguarda anche alcune felci e gruppi affini dell'Europa.
Pichi Sermolli, Rodolfo Emilio Giuseppe
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Free Axial Lobes: An Important Diagnostic Character in Pteridium (Dennstaedtiaceae)
The overall form of the lamina in the bracken fern (Pteridium) is a fractal series in which blade, pinnae, pinnules and pinnulets represent a hierarchy of repeated units of decreasing size. Distinctive lunate or semi-lunate lobes of laminal tissue between the divisions of the blade in an apical zone of some or all of its axes are an important ...
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