PALINOTAXONOMIA DE ESPÉCIES BRASILEIRAS DETONTELEAAUBL. (HIPPOCRATEACEAE JUSS.)
A pollen taxonomy study of 20 Brazilian species of Tontelea Aubl. (Hippocrateaceae ]uss) was conducted, with the objective of contributing to a better characterization of .the genus. Polliniferous samples were acetolized, measured, and studied by optical microscopy and SEM. The optical microscopy r...
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| Format: | Article |
| Language: | English |
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Escuela Nacional de Ciencias Biológicas
1998-05-01
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| Series: | Polibotánica |
| Online Access: | https://polibotanica.mx/index.php/polibotanica/article/view/633 |
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| _version_ | 1850102249380904960 |
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| author | Vania Gonçalves-Esteves Therezinha Sant Anna Melhem |
| author_facet | Vania Gonçalves-Esteves Therezinha Sant Anna Melhem |
| author_sort | Vania Gonçalves-Esteves |
| collection | DOAJ |
| description |
A pollen taxonomy study of 20 Brazilian
species of Tontelea Aubl. (Hippocrateaceae
]uss) was conducted, with the objective of
contributing to a better characterization of
.the genus. Polliniferous samples were
acetolized, measured, and studied by
optical microscopy and SEM. The optical
microscopy results were used to prepare a
pollen key. Pollen turned out to be provide
good diagnostic characters at a specific
level. Tontellea pollen grains are
predominantly small and microreticulate
with a prominent apertural area. The type
of aperture, exine sculpture, shape and size
classes proved to be constant for each
species, based on the examination of
several specimens of each. It was possible
to distinguish the different species of
Tontelea, based on pollen, except: T.
corymbosa (Huber) A.C.Sm. from T.
martiana (Miers) A.C.Sm.; T. congestiflora
A. C. Sm. from T. laxiflora (Benth.)
A.C.Sm., T. cylindrocarpa (A.C.Sm.)
A.C.Sm. and T. riedeliana (Peyr.) A.C.Sm.;
thus also T. scandens Aubl. from T.
tenuicula (Miers) A.C.Sm. The present
work concludes that Tontelea is
palynologically a more or less
heterogenous group.
|
| format | Article |
| id | doaj-art-e9413dac0bca4fb5810363aebfbf413f |
| institution | DOAJ |
| issn | 1405-2768 2395-9525 |
| language | English |
| publishDate | 1998-05-01 |
| publisher | Escuela Nacional de Ciencias Biológicas |
| record_format | Article |
| series | Polibotánica |
| spelling | doaj-art-e9413dac0bca4fb5810363aebfbf413f2025-08-20T02:39:48ZengEscuela Nacional de Ciencias BiológicasPolibotánica1405-27682395-95251998-05-017PALINOTAXONOMIA DE ESPÉCIES BRASILEIRAS DETONTELEAAUBL. (HIPPOCRATEACEAE JUSS.)Vania Gonçalves-EstevesTherezinha Sant Anna Melhem A pollen taxonomy study of 20 Brazilian species of Tontelea Aubl. (Hippocrateaceae ]uss) was conducted, with the objective of contributing to a better characterization of .the genus. Polliniferous samples were acetolized, measured, and studied by optical microscopy and SEM. The optical microscopy results were used to prepare a pollen key. Pollen turned out to be provide good diagnostic characters at a specific level. Tontellea pollen grains are predominantly small and microreticulate with a prominent apertural area. The type of aperture, exine sculpture, shape and size classes proved to be constant for each species, based on the examination of several specimens of each. It was possible to distinguish the different species of Tontelea, based on pollen, except: T. corymbosa (Huber) A.C.Sm. from T. martiana (Miers) A.C.Sm.; T. congestiflora A. C. Sm. from T. laxiflora (Benth.) A.C.Sm., T. cylindrocarpa (A.C.Sm.) A.C.Sm. and T. riedeliana (Peyr.) A.C.Sm.; thus also T. scandens Aubl. from T. tenuicula (Miers) A.C.Sm. The present work concludes that Tontelea is palynologically a more or less heterogenous group. https://polibotanica.mx/index.php/polibotanica/article/view/633 |
| spellingShingle | Vania Gonçalves-Esteves Therezinha Sant Anna Melhem PALINOTAXONOMIA DE ESPÉCIES BRASILEIRAS DETONTELEAAUBL. (HIPPOCRATEACEAE JUSS.) Polibotánica |
| title | PALINOTAXONOMIA DE ESPÉCIES BRASILEIRAS DETONTELEAAUBL. (HIPPOCRATEACEAE JUSS.) |
| title_full | PALINOTAXONOMIA DE ESPÉCIES BRASILEIRAS DETONTELEAAUBL. (HIPPOCRATEACEAE JUSS.) |
| title_fullStr | PALINOTAXONOMIA DE ESPÉCIES BRASILEIRAS DETONTELEAAUBL. (HIPPOCRATEACEAE JUSS.) |
| title_full_unstemmed | PALINOTAXONOMIA DE ESPÉCIES BRASILEIRAS DETONTELEAAUBL. (HIPPOCRATEACEAE JUSS.) |
| title_short | PALINOTAXONOMIA DE ESPÉCIES BRASILEIRAS DETONTELEAAUBL. (HIPPOCRATEACEAE JUSS.) |
| title_sort | palinotaxonomia de especies brasileiras detonteleaaubl hippocrateaceae juss |
| url | https://polibotanica.mx/index.php/polibotanica/article/view/633 |
| work_keys_str_mv | AT vaniagoncalvesesteves palinotaxonomiadeespeciesbrasileirasdetonteleaaublhippocrateaceaejuss AT therezinhasantannamelhem palinotaxonomiadeespeciesbrasileirasdetonteleaaublhippocrateaceaejuss |