Results 11 to 20 of about 1,194 (203)

LEAFLET ANATOMY OF ZAMIA DISODON D.W. STEV. & SABATO AND Z. RESTREPOI (D.W. STEV.) A. LINDSTR. [PDF]

open access: yesCaldasia, 2013
The genus Zamia is morphologically and ecologically the most diverse of theCycadales. Colombia is the country where most living species of Zamia have beenrecorded.
Acuña Castillo Rafael   +1 more
doaj   +2 more sources

Chemical ecology of symbioses in cycads, an ancient plant lineage. [PDF]

open access: yesNew Phytol
Summary Cycads are an ancient lineage of gymnosperms that maintain a plethora of symbiotic associations from across the tree of life. They have myriad morphological, structural, physiological, chemical, and behavioral adaptations that position them as a unique system to study the evolution, ecology, and mechanism of symbiosis.
Salzman S   +6 more
europepmc   +2 more sources

Zamia pumila Linnaeus 1763

open access: yes, 2007
Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part Z), pp. 932-934 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 932, DOI: 10.5281/zenodo ...
Jarvis, Charlie
openaire   +3 more sources

Early evolutionary history of the seed. [PDF]

open access: yesBiol Rev Camb Philos Soc
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Bateman RM, Spencer ART, Hilton J.
europepmc   +2 more sources

Stem Branching of Cycad Plants Informs Horticulture and Conservation Decisions

open access: yesHorticulturae, 2020
The number of branches in male and female plants of Cycas micronesica K.D. Hill, Cycas edentata de Laub., Cycas wadei Merr., and Zamia encephalartoides D.W. Stev.
Thomas E. Marler, Michael Calonje
doaj   +1 more source

La gerencia social en la Universidad Nacional Intercultural de la Amazonía y su relación con la implementación de una política educativa con enfoque intercultural

open access: yesLengua y Sociedad, 2021
El proceso de implementación de toda política o programa es complejo en sí mismo y puede presentar una serie de factores que dificultan su desarrollo. El establecimiento de una política educativa con enfoque intercultural no es ajeno a ello, pues —como ...
Zamia Ivon Castillo Farroñay
doaj   +1 more source

Pollen morphology of the Megamexican cycads reveals the potential of morphometrics to identify cycad genera

open access: yesBotan‪ical Sciences, 2020
Background: Although pollen morphology has always been an important tool in plant systematics, the possibility of distinguishing between related taxa is still debated. A difficult case is the cycads, where their morphology and small size is very similar.
Andrew P. Vovides   +4 more
doaj   +1 more source

Highly Successful Adventitious Root Formation of Zamia L. Stem Cuttings Exhibits Minimal Response to Indole-3-Butyric Acid

open access: yesHortScience, 2020
The influences of indole-3-butyric acid (IBA) concentrations of 0–30 mg·g−1 on the success and speed of adventitious root development of Zamia furfuracea L.f. and Zamia integrifolia L.f. stem cuttings were determined.
Benjamin E. Deloso   +3 more
doaj   +1 more source

The Embryogeny of Zamia [PDF]

open access: yesBotanical Gazette, 1903
(WITH PLATES VI-VIII) OUR knowledge of the development of the embryo of Cycadales is very meager, being largely included in Treub's (5) account of Circas circinalis and Ikeno's (8) of Cycas revoluta. These two accounts agree in every important particular, and deal chiefly with the development of the proembryo.
Coulter, John M.   +1 more
openaire   +1 more source

IDENTIFICATION OF SEX IN ZAMIA INERMIS USING ISSR MARKERS [PDF]

open access: yesJournal of Plant Development, 2021
Zamia inermis is a dioecious cycad endemic to the State of Veracruz that is on the risk extinction. Sex-specific markers are important in understanding the mechanism of sex determination.
Lourdes Georgina IGLESIAS-ANDREU   +1 more
doaj   +1 more source

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