Zobrazeno 1 - 10
of 257
pro vyhledávání: '"O Alvarado"'
Synopsis of the genus Polystemma (Apocynaceae, Asclepiadoideae) and recognition of three new species
Autor:
Leonardo O. Alvarado-Cárdenas, Juan Fernando Pío-León, Cristóbal Sánchez-Sánchez, Carla Sofia Islas-Hernández
Publikováno v:
Botanical Sciences, Vol 102, Iss 4 (2024)
Background: Polystemma is characterized by a mixed indumentum of glandular trichomes that turn white, rotate to rotate-campanulate corollas, a gynostegial corona with filiform appendages, and fusiform follicles. The taxon has undergone numerous taxon
Externí odkaz:
https://doaj.org/article/945c37e9a76749058b4e848ab45b4110
Autor:
Leonardo O. Alvarado-Cárdenas, Juan F. Pío-León, Gilberto Morillo, Carla Sofía Islas-Hernández
Publikováno v:
Taxonomy, Vol 4, Iss 1, Pp 1-9 (2024)
In this study a new species of Gonolobus, G. villasenorii, is described. It is endemic to Sinaloa, Mexico, distributed in the Sierra Madre Occidental in pine–oak forest. This species is characterized by the presence of lanceolate sepals, margin of
Externí odkaz:
https://doaj.org/article/4c7a38b484cf47fa922c1a955cd3d2a6
Publikováno v:
Botanical Sciences, Vol 100, Iss 1 (2024)
Antecedentes: En el trabajo de campo realizado en el municipio de Altotonga, Veracruz, se localizaron poblaciones de una especie del género Matelea con flor sobresalientemente pequeña, que no coincidía con las especies reportadas para México, sin
Externí odkaz:
https://doaj.org/article/d76a3ae1278148a79f836524db13536f
Autor:
J. Luis Vigosa-Mercado, Alfonso Delgado-Salinas, Leonardo O. Alvarado Cárdenas, Luis E. Eguiarte
Publikováno v:
PhytoKeys, Vol 230, Iss , Pp 157-256 (2023)
Agrostis is one of the most diverse genera of the Poaceae, including ca. 198 species, principally distributed in cold and temperate regions of the world, but also found in the high mountains of the tropics. We present a revision based on morphoanatom
Externí odkaz:
https://doaj.org/article/69835e8672194deeb8b8c45cc4a7a5e3
Autor:
C. O. Alvarado Sandino, A. P. Barnes, I. Sepúlveda, M. P. D. Garratt, J. Thompson, M. P. Escobar-Tello
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023)
Abstract Current land use systems in the Amazon largely consist of extensive conventional productivist livestock operations that drive deforestation. Silvopastoral systems (SPS) support a transition to low carbon production if they intensify in sympa
Externí odkaz:
https://doaj.org/article/6d6be6f302204f09b7e57e8f7c6c6736
Publikováno v:
Botanical Sciences, Vol 100, Iss 1 (2023)
Antecedentes: Se realizaron salidas de campo a Puebla y se encontró una planta trepadora perteneciente a Gonolobus que no coincidía morfológicamente con ninguna otra especie del género. Aquí se propone una nueva especie y se compara con las espe
Externí odkaz:
https://doaj.org/article/a8b43475de474121b9390203d063cc91
Publikováno v:
Botanical Sciences, Vol 100, Iss 1 (2023)
Background: Aphyllon is a genus of 25 root-holoparasitic species restricted to the Americas. It has a disjunct distribution, with 21 species distributed in North America and four in South America. Aphyllon is divided into two sections: Aphyllonand No
Externí odkaz:
https://doaj.org/article/a2c4f9ab3e184994a35fab4e2c447d77
Publikováno v:
Botanical Sciences, Vol 100, Iss 1 (2023)
Background: As part of an expedition to checklist the Flora of Oaxaca, a fieldtrip was carried out in the cloud mountain forest of the ‘Sierra Norte’, during which there was a climbing plant found of the genus Ruehssia that differs of any other s
Externí odkaz:
https://doaj.org/article/3bb1d281e4be496b83f160a399975f1f
Publikováno v:
Botanical Sciences, Vol 100, Iss 1 (2023)
Antecedentes: Chthamalia es un género de Gonolobinae distintivo por su hábito trepador o rastrero, sus flores de hasta dos centímetros de diámetro y su corona ginostegial ciatiforme con apéndices generalmente lineares. Ocho especies han sido rep
Externí odkaz:
https://doaj.org/article/108ce5b108e942c6abc302dae8418416
Autor:
Victoria Sosa, Leonardo O. Alvarado-Cárdenas, Rodrigo Duno de Stefano, Jesús G. González-Gallegos, Luis Hernández-Sandoval, Raul Jiménez-Rosenberg, Helga Ochoterena, Aarón Rodríguez, Heike Vibrans, Diego F. Angulo
Publikováno v:
Botanical Sciences, Vol 100, Iss 1 (2023)
Background: Mexico is a megadiverse country with an elevated diversity of species of vascular plants. A comprehensive Flora that includes all of the vascular plants distributed in Mexico does not yet exist. Electronic Floras have demonstrated the val
Externí odkaz:
https://doaj.org/article/7afa28880c1d451bae3d7e61ce0d0f5e