Results 81 to 90 of about 19,780 (226)

Considerações sobre a ocorrência de Cactaceae na Apa de Maricá, Rio de Janeiro, Brasil

open access: yesActa Botânica Brasílica, 1990
São estudadas as especies da família Cactaceae que ocorrem na Restinga de Maricá, cuja flora se encontra ameaçada devido a diversas interferências que vêm alterando sua composição florística e vegetacional.
Cecilia Maria Rizzini   +3 more
doaj   +1 more source

Application of a rule-based knowledge system using CLIPS for the taxonomy of selected Opuntia species [PDF]

open access: yes
A rule based knowledge system was developed in CLIPS (C Language Integrated Production System) for identifying Opuntia species in the family Cactaceae, which contains approx. 1500 different species.
Heymans, Bart C.   +2 more
core   +1 more source

Mass spectrometric detection of new betalains in Mammillaria flowers [PDF]

open access: yes, 2015
Betacyanins are natural, red-violet betalain pigments which can be found in plenty of plants of the Cactaceae family. The Mammillaria is the widest genus of the Cactaceae family of which fruit was examined for betacyanins contents.
Skopińska, Anna   +3 more
core  

New records and range extension of some mosses in tropical areas of Chile [PDF]

open access: yes, 2003
A total of thirteen mosses are reported as new for Chile: Aloinella andina Delgad., Coscinodontella bryanii R.S. Williams, Didymodon acutus (Brid.) K. Saito, Erythrophyllopsis fuscula (Müll. Hal.) Hilp., Fissidens excurrentinervis R.S.
Cano, María J.
core  

Isolation and Characterisation of a Reserve Protein from the Seeds of Cereus jamacaru (Cactaceae)

open access: yesBrazilian Archives of Biology and Technology, 2001
We describe here the isolation and characterisation of a major reserve protein from the seeds of Cereus jamacaru. (Cactaceae). This protein has a molecular mass of 5319 kDa and was isolated by a combination of gel filtration chromatography and reverse ...
Itayguara Ribeiro da Costa   +4 more
doaj   +1 more source

Interactions between Eriosyce villicumensis (Cactaceae) and shrubs: a study case in the hyper arid Monte desert of Argentina [PDF]

open access: yes, 2015
Se estudió la distribución espacial intraespecífica e interespecífica de Eriosyce villicumensis (Rausch) Katt. en tres unidades fisiográficas y a microescala bajo los arbustos.
Almiron, Martin Guillermo   +1 more
core  

Species Status of Sclerocactus brevispinus, S. wetlandicus, and S. glaucus: Inferences from Morphology, Chloroplast DNA Sequences, and AFLP Markers [PDF]

open access: yes, 2013
We examine patterns of variation in 12 continuous morphological traits, chloroplast DNA sequences from 10 intergenic spacer regions (petA-psbJ, psbk-trnS, psbM-trnD, rpob-trnC, trnC-trnD, trnGCU-trnG2S, trnFM-trnUGA, atpF-atpH, trnT-trnD, trnQ-psbk ...
Cruse-Sanders, Jennifer   +3 more
core   +3 more sources

Patrones de rareza y prioridades de conservación en especies de Cactaceae del sur de los Andes Centrales: un estudio en los Valles Calchaquíes, Salta, Argentina

open access: yesEcología Austral, 2016
En este trabajo se estudiaron 34 especies de Cactaceae de los Valles Calchaquíes, Argentina, para determinar 1) el nivel de rareza de las especies, 2) la proporción de especies raras entre grupos taxonómicos y ecológicos, y 3) la consistencia espacial ...
Ana C. Godoy-Bürki   +5 more
doaj   +1 more source

SISTEMA DE CRUZAMIENTO Y ESTIMACIONES EN LA EFICIENCIA DE POLINIZACIÓN SOBRE TRICHOCEREUS PASACANA (CACTACEAE) EN DOS POBLACIONES DEL NOROESTE ARGENTINO BREEDING SYSTEM AND ESTIMATION OF THE POLLINATION EFFICIENCY ON TRICHOCEREUS PASACANA (CACTACEAE) IN TWO POPULATIONS FROM NORTHWEST ARGENTINA

open access: yesGayana: Botanica, 2001
Los objetivos de este estudio fueron analizar el sistema de cruzamiento y la eficiencia de la polinización en Trichocereus pasacana y sus efectos sobre la reproducción.
Ernesto I. Badano   +1 more
doaj  

Palynological studies in Argentina species of the genera Cereus, Cleistocactus, Denmoza, Echinopsis and Monvillea (Cactaceae, Cactoideae) [PDF]

open access: yes, 2010
Resumen: Se estudió la morfología del polen de 19 especies pertenecientes a cinco géneros (Cereus, Cleistocactus, Denmoza, Echinopsis y Monvillea) de la subfamilia Cactoideae (Cactaceae) en Argentina, fueron descriptas usando microscopio óptico y ...
Cuadrado, Graciela   +1 more
core   +1 more source

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