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Flowering of Guadua trinii (Poaceae, Bambusoideae, Bambuseae)
(Jardim Botânico do Rio de Janeiro, 2020)Flowering in bamboo is an unusual event. Documenting flowering individuals or populations provides valuable information about bamboo life cycles. Guadua trinii is endemic to northeastern Argentina, southern Brazil, Paraguay ... -
A new species and a new combination in the South American genus Lessingianthus (Vernonieae, Asteraceae)
(Magnolia Press, 2014-12-02)A detailed analysis of the type material of Vernonia oxyodonta clearly indicates that it is morphologically identical to Lessingianthus glabratus because it has glabrous leaves, pedunculate heads at the end of the ... -
Justicia floribunda (Acanthaceae), nueva combinación y nueva cita para la flora argentina
(Instituto de Botánica Darwinion, 1998-05-17)Peichoto, M. C., Ezcurra, C. & Wasshausen, D. 1998. Justiciafloribunda (Acanthaceae), new combination and new record for the flora of Argentina. Darwiniana 35: 151-154. Justicia floribunda (C Koch) Wasshausen nov. comb, ... -
Marasmius magnus (Marasmiaceae, Basidiomycota) en Argentina
(Instituto de Botánica Darwinion, 2021-08-25)En el marco de un estudio sobre la diversidad de hongos agaricoides de la Selva Atlántica argentina, se colectaron especímenes que se corresponden morfológica y filogenéticamente con Marasmius magnus, una especie recientemente ... -
Estudios morfo-anatómicos en especies de Justicia (Acanthaceae) del noreste argentino
(Instituto de Botánica Darwinion, 1998-10-10)Peichoto, M. C. 1998. Morpho-anatomic studies in species of Justicia (Acanthaceae) from northeastem Argentina. Darwiniana 36: 13-28. This paper presents the comparative analysis of the seed morphology and stem structure ... -
Sobre la identidad de Schizachyrium scabriflorum (Poaceae: Andropogoneae)
(Instituto de Botánica Darwinion, 2002-11-20)Peichoto, M. C. 2002. On the identity of Schizachyrium scabriflorum (Poaceae: Andropogoneae). Darwiniana 40(1-4): 103-105. Schizachyrium scabriflorum is described and illustrated, and its differences with S. sanguineum are ... -
Mycena holoporphyra (Mycenaceae, Agaricomycetes), primer registro para la Argentina
(Instituto de Botánica Darwinion, 2011-11-09)Niveiro, N.; O. F. Popoff & E. O. Albertó. 2011. Mycena holoporphyra (Mycenaceae, Agaricomycetes), primer registro para la Argentina. Darwiniana 49(2): 252-256. Es el primer registro de Mycena holoporphyra para la micobiota ... -
Nuevos registros y lectotipificaciones en Richardia (Rubiaceae) para la flora del Cono Sur de Sudamérica
(Instituto de Botánica Darwinion, 2022-07-02)Richardia es un género Neotropical, perteneciente a la tribu Spermacoceae, familia Rubiaceae. Cuenta con 16 especies que se distribuyen desde el sudeste de los Estados Unidos de América hasta Argentina y Uruguay. Como parte ... -
Aportes para la flora de Argentina : lectotipificaciones, nuevos sinónimos y registros en Borreria (Rubiaceae)
(Instituto de Botánica Darwinion, 2022-10-17)Como parte de los avances en los resultados del Proyecto Flora Argentina sobre la familia Rubiaceae, se presentan novedades taxonómicas y nomenclaturales de especies del género Borreria. Se designan lectotipos para cinco ... -
Evolution of genome space occupation in ferns : linking genome diversity and species richness
(Oxford University Press, 2023-01-01)Background and Aims: The dynamics of genome evolution caused by whole genome duplications and other processes are hypothesized to shape the diversification of plants and thus contribute to the astonishing variation in ... -
In vitro cultured primary roots derived from stem segments of Cassava (Manihot esculenta) can behave like storage organs
(Oxford University Press, 2007-03-01)Background and Aims: Cassava ( Manihot esculenta ) has three adventitious root types: primary and secondary fibrous roots, and storage roots. Different adventitious root types can also regenerate from in vitro cultured ... -
Segregation for sexual seed production in Paspalum as directed by male gametes of apomictic triploid plants
(Oxford University Press, 2007-11-01)Background and Aims: Gametophytic apomixis is regularly associated with polyploidy. It has been hypothesized that apomixis is not present in diploid plants because of a pleiotropic lethal effect associated with monoploid ... -
Effect of pollination timing on the rate of apomictic reproduction revealed by RAPD Markers in Paspalum notatum
(Oxford University Press, 2002-02-01)Progeny tests employing molecular markers allow the identification of individuals originated by sexual means among the offspring of a facultative apomict. The objective of this work was to evaluate the effect of the ... -
Analysis of variation for apomictic reproduction in diploid Paspalum rufum
(Oxford University Press, 2014-04-16)Background and Aims: The diploid cytotype of Paspalum rufum (Poaceae) reproduces sexually and is self-sterile; however, recurrent autopolyploidization through 2n + n fertilization and the ability for reproduction via ... -
Relación genómica entre citotipos diploides de Paspalum simplex y P. procurrens (Poaceae, Paniceae)
(Instituto de Botánica Darwinion, 1998-09-25)Interspecific Crossing was conducted between diploid cytotypes of two Paspalum species o f the subgenus Anachyris in order to investígate their genomic relatíonship and to evalúate the possibilities of gene exchange between ... -
Reproductive systems in Paspalum : relevance for Germplasm collection and conservation, breeding techniques, and adoption of released cultivars
(Universidad de Padua, 2019)The objective of this review is to analyze and describe the impact that mode of reproduction in Paspalum has on germplasm conservation, genetic improvement, and commercialization of cultivars. Germplasm collection and ... -
A plant-specific TGS1 homolog influences gametophyte development in sexual tetraploid Paspalum notatum ovules
(Universidad de Carolina del Norte, 2019-11)Aposporous apomictic plants form clonal maternal seeds by inducing the emergence of non-reduced (2n) embryo sacs in the ovule nucellus and the development of embryos by parthenogenesis. In previous work, we reported a ... -
Lista de espécies de Sapindaceae para um remanescente de Floresta Estacional Semidecidual no sul do Brasil : Estação Ecológica do Caiuá
(Universidade Federal do Rio Grande do Sul, 2014-07)Com o objetivo de ampliar os conhecimentos sobre a flora do estado do Paraná e de suas áreas ripárias, foi realizado o inventário da família Sapindaceae para a Estação Ecológica do Caiuá, na margem esquerda do rio Paranapanema. ... -
Volvariella volvacea (Pluteaceae, Agaricales), presencia de un hongo con potencial biotecnológico en la Argentina
(Sociedad Argentina de Botánica, 2021)Background and aims: Volvariella volvacea is a tropical to subtropical species, known from Southeastern Asia, Europe and America with isolated records from Africa, and Oceania, but there is no previous record of this ... -
Floral nectary structure, nectar presentation and morpho-anatomical analysis of male-fertile and male-sterile anthers in onion (Allium cepa, Amaryllidaceae)
(Sociedad Argentina de Botánica, 2023)Background and aims: The onion (Allium cepa var. cepa) is an allogamous species in which male-sterile lines have been developed. However, the structure of the flower and floral nectaries have only been briefly described. ...
