|
|
|
Registros recuperados: 12 | |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
Florentín,Javier Elías; Florentin,Mariela Nuñez; Cabral,Elsa Leonor. |
ABSTRACT Thirteen species of the genus Galianthe have been recorded for state of Rio Grande do Sul, Brazil. The species are distributed among seven biomes, one of which contains all thirteen taxa-Subtropical Seasonal Forest. Herein a new endemic species, G. riograndensis J. Florentín & E.L. Cabral, is described, illustrated and differentiated from all other species of the genus by having 3-4 verticillate leaves and a long bifid style. In addition, the pollen grain morphology and the seed micromorphology of the new species are described and illustrated, and the conservation status assessed according to IUCN criteria. Moreover, G. chodatiana is recorded for the first time from the state, and a lectotype for G. equisetoides is designated. Most of the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Galianthe; Rubioideae; Southern Brazil; Spermacoceae; Taxonomy. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400619 |
| |
|
| |
|
| |
|
|
Florentin,Mariela Nuñez; Cabaña Fader,Andrea; Gonzalez,Ana Maria. |
ABSTRACT The genus Oldenlandia (Rubiaceae) has a conflicting generic delimitation, with representatives that show different floral syndromes. Oldenlandia salzmannii is a marshy herb that is widespread in South America. It is heterostylous, specifically distylous, and self-compatible. Recent molecular phylogenetic studies found that this species forms a clade that is isolated from the remaining described taxa of Oldenlandia. Information about the floral anatomy and reproductive biology of genera in the Spermacoceae tribe, particularly Oldenlandia, is insufficient, especially among the neotropical species. Accordingly, the present study aimed at contributing information on the reproductive biology of Oldenlandia salzmannii by analyzing its floral... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Floral anatomy; Heterostyly; Oldenlandia salzmannii; Ovule development; Spermacoceae. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000400585 |
| |
|
| |
|
|
Salas,Roberto M; Cabral,Elsa L. |
Este trabajo trata el estudio de los granos de polen de Staelia s.l. Actualmente, es un grupo escasamente estudiado en este aspecto, ya que solo se describieron cuatro de 25 especies. Se estudió el polen de todas las especies de Anthospermopsis, Planaltina, Tessiera y Staelia s.s. Como resultado, se encontró una notable homogeneidad de caracteres polínicos dentro de cada género, que se pone de manifiesto en un único tipo de polen para cada taxón, excepto para Anthospermopsis. Tessiera y Planaltina se diferencian de Staelia por el tamaño de los granos (P=42-75 y E=50-78,4 vs. P=21-34 y E=20-30,8 μm) y longitud de los colpos (LC/P= 0,22-0,31 vs. 0,57-0,77 μm), mientras que Anthospermopsis es prácticamente indistinguible de las otras... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthospermopsis; Multiaperturado; Planaltina; Polen; Spermacoceae; Tessiera. |
Ano: 2014 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722014000100006 |
| |
|
| |
Registros recuperados: 12 | |
|
|
|