Results 1 to 10 of about 375 (147)
Stomatal development in the cycad family Zamiaceae [PDF]
Abstract Background and Aims The gymnosperm order Cycadales is pivotal to our understanding of seed-plant phylogeny because of its phylogenetic placement close to the root node of extant spermatophytes and its combination of both derived and plesiomorphic character states. Although widely considered a
Mario Coiro +2 more
exaly +6 more sources
TYPIFICATION OF ...
P. Vorster
doaj +2 more sources
ENCEPHAIARTOS RELICTUS: A NEW SPECIES FROM SOUTHERN ...
P. J. H. Hurter, H. F. Glen
doaj +2 more sources
The Cones of Encephalartos ...
R. A. Dyer
doaj +2 more sources
What is Ceratozamia mexicana (Zamiaceae)? [PDF]
Explorations in central Veracruz on the Transvolcanic Mexican Belt and regions explored by 19th century botanists we found various populations of Ceratozamia whose taxonomic status is not yet completely clear. Especially two populations of C.
Andrew P. Vovides +4 more
doaj +2 more sources
Monograph of Ceratozamia (Zamiaceae, Cycadales): an endangered genus [PDF]
Ceratozamia (Zamiaceae, Cycadales), is a member one of the most endangered seed plant groups. Species of Ceratozamia grow from near sea level up to 2,100 meters in Mexico and Mesoamerica.
Lilí Martínez-Domínguez +3 more
doaj +5 more sources
La familia Zamiaceae es reconocida en el Perú por presentar un género, Zamia, y cuatro especies (Brako & Zarucchi, 1993; Stevenson, 2004), todas arbustivas, con tallos cortos menores de 2 m de alto o desde un tallo subterráneo.
Blanca León
doaj +5 more sources
Seed predation and potential seed dispersers of the narrow endemic Ceratozamia norstogii (Zamiaceae) [PDF]
In this study, we report the observation of potential seed dispersers of the endemic to Mexico and narrowly distributed Ceratozamia norstogii (Zamiaceae).
Héctor Gómez-Domínguez +2 more
doaj +4 more sources
A checklist of gymnosperm-feeding leafminers (Arthopoda, Insecta) in North America and Europe [PDF]
The leafminers on gymnosperms receive much less attention than those on either angiosperms or ferns. Given the distinctly different leaf shape and leaf venation found in gymnosperms, they would be expected to host significantly different leafminer groups.
Taibin Chen +2 more
doaj +4 more sources
The complete chloroplast genome of Microcycas calocoma (Miq.) A. DC. (Zamiaceae, Cycadales) and evolution in Cycadales [PDF]
Cycadales is an extant group of seed plants occurring in subtropical and tropical regions comprising putatively three families and 10 genera. At least one complete plastid genome sequence has been reported for all of the 10 genera except Microcycas ...
Aimee Caye G. Chang +7 more
doaj +3 more sources

