Results 91 to 100 of about 11,554 (203)

Betulaceae [PDF]

open access: yes
Árboles o arbustos caducifolios, de hojas pecioladas, simples y alternas, limbo de borde entero o aserrado (diversamente dentado), glabro o pubescente, polimorfo, desde triangular-ovado o deltoideo a aovado o elíptico.
Novara, Lazaro (ed.), Nuñez, Virgilio
core  

Seasonal fluctuations of the airborne pollen in Guarda (Portugal) [PDF]

open access: yes, 2016
Airborne pollen calendars are useful to estimate the flowering season of the different plants as well as to indicate the allergenic potential present in the atmosphere at a given time.
Esteves da Silva, Joaquim C. G.   +2 more
core  

The Genus Alnus, A Comprehensive Outline of Its Chemical Constituents and Biological Activities

open access: yesMolecules, 2017
The genus Alnus (Betulaceae) is comprised of more than 40 species. Many species of this genus have a long history of use in folk medicines. Phytochemical investigations have revealed the presence of diarylheptanoids, polyphenols, flavonoids, terpenoids ...
Xueyang Ren   +8 more
doaj   +1 more source

Distribution and diversity of exotic plant species in montane to alpine areas of Kosciuszko National Park [PDF]

open access: yes, 2013
Diversity and distribution of exotic plant taxa in Kosciuszko National Park in south-eastern Australia were reviewed based on 1103 records of exotics from 18 vegetation surveys conducted between 1986 and 2004.
Bear, Roxana   +2 more
core  

The complete chloroplast genome of Carpinus hebestroma, a critically endangered species endemic to Taiwan

open access: yesMitochondrial DNA. Part B. Resources, 2018
Carpinus hebestroma (Betulaceae) is a critically endangered species endemic to Taiwan. In this study, we assembled the complete chloroplast (cp) genome of C.
Gaini Wang, Ying Li
doaj   +1 more source

New species and records of Anacis (Hymenoptera: Ichneumonidae: Cryptini) from tropical and temperate Andean South America [PDF]

open access: yes, 2003
Descriptions are given of the new species Anacis ignifera and A. flammigera from Mérida State, Venezuela and of A. umbrifera from Machu Picchu, Perú. These belong to a tropical Andean lineage with strongly projecting propodeal cristae and pictured wings.
Porter, Charles C.
core   +1 more source

ХАРАКТЕР ПИЩЕВОЙ ИЗБИРАТЕЛЬНОСТИ ПЯТНИСТОГО ОЛЕНЯ (CERVUS NIPPON (TEMMINCK, 1838) В УССУРИЙСКОМ ЗАПОВЕДНИКЕ В БЕССНЕЖНЫЙ ПЕРИОД

open access: yesАмурский зоологический журнал, 2010
В рационе пятнистого оленя – Cervus nippon (Temm.) – на территории Уссурийского заповедника в вегетационный период зарегистрированы 124 вида растений из 48 семейств (14,4% от общего количества видов, произрастающих в заповеднике). Доминирующими в пищевом
M. V. Maslov, L. A. Fedina
doaj  

О строении плодов представителей Corylus L. Subsect. Corylus (Betulaceae) [PDF]

open access: yes, 2011
Было изучено строение плодов Corylus avellana L. и Corylus americana Marshall. Плоды развиваются из олигомерного синкарпного гинецея, имеют листовидную плюску, практически полностью покрывающую плод.
Яценко, И. О.
core   +1 more source

La matière organique des alternances sel-Marne du salar d'Uyuni (Altiplano, Bolivie) : études géochimiques et palynologiques [PDF]

open access: yes, 1995
Le sondage UA, au centre du salar d'Uyuni, a traversé une alternance de sédiments halitiques et "lacustres" sur plus de 120 m de profondeur. Diverses analyses, géochimiques, palynologiques, pétrographiques et minéralogiques, ont été effectuées afin d ...
Blanc-Valleron, M.M.   +2 more
core  

Hongos micorrícico arbusculares presentes en bosques de Alnus acuminata (Betulaceae) de la Yunga Argentina Arbuscular mycorrhizal fungi in the Yungas forests of Alnus acuminata (Betulaceae) Argentina

open access: yesBoletín de la Sociedad Argentina de Botánica, 2008
En este trabajo se citan 22 especies de Hongos Micorrícico Arbusculares (HMA) presentes en la rizosfera de plantas pertenecientes a las familias Betulaceae, Fabaceae, Oxalidaceae, Rosaceae y Caprifoliaceae de la Yunga Argentina.
Alejandra Becerra, Marta Cabello
doaj  

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