Hippeastrum species in areas of restinga in the state of Rio de Janeiro, Brazil: pollen characters
The order Asparagales comprises 14 families, five of which occur in Brazil. Amaryllidaceae is a family of economic relevance and includes numerous ornamental genera. The genus Hippeastrum is widely distributed in Brazil and comprises 34 species, 11 of which occur in areas of restinga (coastal woodla...
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| Format: | Article |
| Language: | English |
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Sociedade Botânica do Brasil
2013-12-01
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| Series: | Acta Botânica Brasílica |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000400003&lng=en&tlng=en |
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| author | Renata Suzano Candido Ana Carolina da Silva Fourny Vania Gonçalves-Esteves Rosana Conrado Lopes |
| author_facet | Renata Suzano Candido Ana Carolina da Silva Fourny Vania Gonçalves-Esteves Rosana Conrado Lopes |
| author_sort | Renata Suzano Candido |
| collection | DOAJ |
| description | The order Asparagales comprises 14 families, five of which occur in Brazil. Amaryllidaceae is a family of economic relevance and includes numerous ornamental genera. The genus Hippeastrum is widely distributed in Brazil and comprises 34 species, 11 of which occur in areas of restinga (coastal woodland) and Atlantic Forest in the state of Rio de Janeiro. The morphology of Hippeastrum has not been extensively studied in Brazil, where only a few systematic floristic surveys have been carried out with native species. In field studies and reviews of herbarium collections, we identified five Hippeastrum species occurring in areas of restinga in the state of Rio de Janeiro. The five species identified could be distinguished according to the following palynological characteristics: pollen grain size, polarity, pollen units, shape, aperture (number and type), exine sculpture, colpus length and pattern of sexine ornamentation. Of the five species identified, Hippeastrum aulicum Herb. and H. glaucescens (Ker Gawl.) Herb. were not identified in the field. Among the three species that were found in the field, H. striatum had the widest distribution in the study area, whereas the distribution of H. reticulatum was restricted to a single area of restinga, in the Jaconé district of the municipality of Saquarema. Through palynological examinations of specimens from herbaria in the state of Rio de Janeiro, we were able to confirm the identity of all five species of Hippeastrum studied. Our data represent a relevant contribution to increasing knowledge of this plant group in the region and will aid in future conservation efforts. |
| first_indexed | 2024-12-17T10:34:15Z |
| format | Article |
| id | doaj.art-2255ed22b99149fdb2832fe232784d49 |
| institution | Directory Open Access Journal |
| issn | 1677-941X |
| language | English |
| last_indexed | 2024-12-17T10:34:15Z |
| publishDate | 2013-12-01 |
| publisher | Sociedade Botânica do Brasil |
| record_format | Article |
| series | Acta Botânica Brasílica |
| spelling | doaj.art-2255ed22b99149fdb2832fe232784d492022-12-21T21:52:26ZengSociedade Botânica do BrasilActa Botânica Brasílica1677-941X2013-12-0127466166810.1590/S0102-33062013000400003S0102-33062013000400003Hippeastrum species in areas of restinga in the state of Rio de Janeiro, Brazil: pollen charactersRenata Suzano Candido0Ana Carolina da Silva Fourny1Vania Gonçalves-Esteves2Rosana Conrado Lopes3Universidade Federal do Rio de JaneiroUniversidade Federal do Rio de JaneiroUniversidade Federal do Rio de JaneiroUniversidade Federal do Rio de JaneiroThe order Asparagales comprises 14 families, five of which occur in Brazil. Amaryllidaceae is a family of economic relevance and includes numerous ornamental genera. The genus Hippeastrum is widely distributed in Brazil and comprises 34 species, 11 of which occur in areas of restinga (coastal woodland) and Atlantic Forest in the state of Rio de Janeiro. The morphology of Hippeastrum has not been extensively studied in Brazil, where only a few systematic floristic surveys have been carried out with native species. In field studies and reviews of herbarium collections, we identified five Hippeastrum species occurring in areas of restinga in the state of Rio de Janeiro. The five species identified could be distinguished according to the following palynological characteristics: pollen grain size, polarity, pollen units, shape, aperture (number and type), exine sculpture, colpus length and pattern of sexine ornamentation. Of the five species identified, Hippeastrum aulicum Herb. and H. glaucescens (Ker Gawl.) Herb. were not identified in the field. Among the three species that were found in the field, H. striatum had the widest distribution in the study area, whereas the distribution of H. reticulatum was restricted to a single area of restinga, in the Jaconé district of the municipality of Saquarema. Through palynological examinations of specimens from herbaria in the state of Rio de Janeiro, we were able to confirm the identity of all five species of Hippeastrum studied. Our data represent a relevant contribution to increasing knowledge of this plant group in the region and will aid in future conservation efforts.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000400003&lng=en&tlng=enAmaryllidaceaeAsparagalesconservationpollen |
| spellingShingle | Renata Suzano Candido Ana Carolina da Silva Fourny Vania Gonçalves-Esteves Rosana Conrado Lopes Hippeastrum species in areas of restinga in the state of Rio de Janeiro, Brazil: pollen characters Acta Botânica Brasílica Amaryllidaceae Asparagales conservation pollen |
| title | Hippeastrum species in areas of restinga in the state of Rio de Janeiro, Brazil: pollen characters |
| title_full | Hippeastrum species in areas of restinga in the state of Rio de Janeiro, Brazil: pollen characters |
| title_fullStr | Hippeastrum species in areas of restinga in the state of Rio de Janeiro, Brazil: pollen characters |
| title_full_unstemmed | Hippeastrum species in areas of restinga in the state of Rio de Janeiro, Brazil: pollen characters |
| title_short | Hippeastrum species in areas of restinga in the state of Rio de Janeiro, Brazil: pollen characters |
| title_sort | hippeastrum species in areas of restinga in the state of rio de janeiro brazil pollen characters |
| topic | Amaryllidaceae Asparagales conservation pollen |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000400003&lng=en&tlng=en |
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