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Dialnet (Difusión de Alertas en la Red) es una plataforma de recursos y servicios documentales, cuyo objetivo fundamental se centra en mejorar la visibilidad y el acceso a la literatura científica hispana a través de Internet.

Ciencias biológicas

Mostrando recursos 1 - 20 de 32.245

  1. Els gèneres de la literatura científica: frau: retalla, enganxa i acoloreix

    Purroy, Jesús

  2. Notes on the Rhodocolea racemosa (Lam.) H. Perrier (Bignoniaceae) species complex

    Phillipson, Peter B.; Callmander, Martin W.
    The authors review the Rhodocolea racemosa (Lam.) H. Perrier complex (Bignoniaceae), with its numerous varieties and taxonomic forms, many of which were never validly published due to lack of Latin diagnoses, and its confused synonymy. The authors discuss the typification of the validly published taxa included within the species by Perrier de la Bâthie and recognise three of these as species distinct from Rhodocolea racemosa s.s., providing the necessary new combinations. Information on the identity of the taxa that lack validly published names is also provided.

  3. Notes on the Rhodocolea racemosa (Lam.) H. Perrier (Bignoniaceae) species complex

    Phillipson, Peter B.; Callmander, Martin W.
    The authors review the Rhodocolea racemosa (Lam.) H. Perrier complex (Bignoniaceae), with its numerous varieties and taxonomic forms, many of which were never validly published due to lack of Latin diagnoses, and its confused synonymy. The authors discuss the typification of the validly published taxa included within the species by Perrier de la Bâthie and recognise three of these as species distinct from Rhodocolea racemosa s.s., providing the necessary new combinations. Information on the identity of the taxa that lack validly published names is also provided.

  4. The transfer of the Malagasy species of Strobilanthes Blume to Acanthopale C. B. Clarke (Acanthaceae)

    Callmander, Martin W.; Phillipson, Peter B.
    Five Acanthaceae species originally described in the genus Strobilanthes Blume are formally transferred to the genus Acanthopale C. B. Clarke, following currently accepted generic delimitation in the family. The necessary combinations: Acanthopale breviceps (Benoist) Callm. & Phillipson, Acanthopale cuneifolia (Benoist) Callm. & Phillipson, Acanthopale humblotii (Benoist) Callm. & Phillipson, Acanthopale perrieri (Benoist) Callm. & Phillipson and Acanthopale ramiflora (Benoist) Callm. & Phillipson are established.

  5. The transfer of the Malagasy species of Strobilanthes Blume to Acanthopale C. B. Clarke (Acanthaceae)

    Callmander, Martin W.; Phillipson, Peter B.
    Five Acanthaceae species originally described in the genus Strobilanthes Blume are formally transferred to the genus Acanthopale C. B. Clarke, following currently accepted generic delimitation in the family. The necessary combinations: Acanthopale breviceps (Benoist) Callm. & Phillipson, Acanthopale cuneifolia (Benoist) Callm. & Phillipson, Acanthopale humblotii (Benoist) Callm. & Phillipson, Acanthopale perrieri (Benoist) Callm. & Phillipson and Acanthopale ramiflora (Benoist) Callm. & Phillipson are established.

  6. Le genre Oxyanthus DC. (Rubiaceae) en Afrique de l’Ouest: description d’une nouvelle espèce

    Lachenaud, Olivier; Sonké, Bonaventure
    A new species, Oxyanthus andjigae Sonké & O. Lachenaud (Rubiaceae), from Ivory Coast and Sierra Leone, is described and illustrated. It is closely related to Oxyanthus racemosus (Schumach. & Thonn.) Keay and Oxyanthus setosus Keay, and was previously confused with the latter species; however, it differs from both in the longer corolla tube (18-19.5 cm vs (7-)11-15.5 cm) and the longer hairs on the twigs (1.5-2 mm long vs. ≤ 1 mm in Oxyanthus setosus and ≤ 0.5 mm in Oxyanthus racemosus). From Oxyanthus setosus it is also separated by the distribution, the latter species occuring from Nigeria to Gabon. The species is assessed as...

  7. Le genre Oxyanthus DC. (Rubiaceae) en Afrique de l’Ouest: description d’une nouvelle espèce

    Lachenaud, Olivier; Sonké, Bonaventure
    A new species, Oxyanthus andjigae Sonké & O. Lachenaud (Rubiaceae), from Ivory Coast and Sierra Leone, is described and illustrated. It is closely related to Oxyanthus racemosus (Schumach. & Thonn.) Keay and Oxyanthus setosus Keay, and was previously confused with the latter species; however, it differs from both in the longer corolla tube (18-19.5 cm vs (7-)11-15.5 cm) and the longer hairs on the twigs (1.5-2 mm long vs. ≤ 1 mm in Oxyanthus setosus and ≤ 0.5 mm in Oxyanthus racemosus). From Oxyanthus setosus it is also separated by the distribution, the latter species occuring from Nigeria to Gabon. The species is assessed as...

  8. A new species of Sinningia Nees (Gesneriaceae) from Espírito Santo and Rio de Janeiro states, Brazil

    Chautems, Alain; Peixoto, Mauro; Rossini, Josiene
    A new species of Sinningia Nees (Gesneriaceae) occurring in Rio de Janeiro and southern Espírito Santo is described and illustrated. It is morphologically related to Sinningia aghensis Chautems, through its large purple funnel-shaped corollas, but differs by the presence of 4-6 leaf pairs with much longer internodes, tomentose indument on stem and abaxial face of leaf blades, leaf blades wide ovate, peduncle pubescent and larger corolla. Geographic ranges of the two species do not overlap. Comments on phylogenetic relationships within subtribe Ligeriinae, a distribution map and a preliminary conservation assessment following IUCN Red List are also provided.

  9. A new species of Sinningia Nees (Gesneriaceae) from Espírito Santo and Rio de Janeiro states, Brazil

    Chautems, Alain; Peixoto, Mauro; Rossini, Josiene
    A new species of Sinningia Nees (Gesneriaceae) occurring in Rio de Janeiro and southern Espírito Santo is described and illustrated. It is morphologically related to Sinningia aghensis Chautems, through its large purple funnel-shaped corollas, but differs by the presence of 4-6 leaf pairs with much longer internodes, tomentose indument on stem and abaxial face of leaf blades, leaf blades wide ovate, peduncle pubescent and larger corolla. Geographic ranges of the two species do not overlap. Comments on phylogenetic relationships within subtribe Ligeriinae, a distribution map and a preliminary conservation assessment following IUCN Red List are also provided.

  10. Two new anisophyllous species of Sabicea Aubl. (Rubiaceae) from Gabon

    Lachenaud, Olivier; Zemagho, Lise
    Two new Rubiaceae species, Sabicea golgothae O. Lachenaud & Zemagho and Sabicea mabouniensis O. Lachenaud & Zemagho, are described and illustrated. These two species are very similar to each other, and differ from all their congeners by the combination of strong anisophylly and pedunculate inflorescences. Their position in the genus is discussed. Both species are apparently endemic to the Mabounié area in West-Central Gabon, currently under exploitation prospects for mining. They are both assessed as “Critically Endangered” according to IUCN Categories and Criteria.

  11. Two new anisophyllous species of Sabicea Aubl. (Rubiaceae) from Gabon

    Lachenaud, Olivier; Zemagho, Lise
    Two new Rubiaceae species, Sabicea golgothae O. Lachenaud & Zemagho and Sabicea mabouniensis O. Lachenaud & Zemagho, are described and illustrated. These two species are very similar to each other, and differ from all their congeners by the combination of strong anisophylly and pedunculate inflorescences. Their position in the genus is discussed. Both species are apparently endemic to the Mabounié area in West-Central Gabon, currently under exploitation prospects for mining. They are both assessed as “Critically Endangered” according to IUCN Categories and Criteria.

  12. Bambusa gurgandii K. M. Wong & M. H. Diep (Poaceae, Bambusoideae), a new species of bamboo from Vietnam

    Wong, Khoon Meng; Diep, My Hanh
    Bambusa Schreb. (Poaceae, Bambusoideae) is a large and complex tropical and subtropical Asian genus that is currently being taxonomically remodeled through morphological and molecular phylogenetic approaches. The type and type alliance of the genus is, however, morphologically well distinguished. Preliminary documentation suggests there could be some 60-70 species of Bambusa in Vietnam, although confirmation requires more rigorous herbarium-based vouchering. A new species of bamboo belonging to the type alliance, Bambusa gurgandii K. M. Wong & M. H. Diep, is described, known only from cultivated specimens in Vietnam. It belongs to the group of unarmed Bambusa species including Bambusa burmanica Gamble, Bambusa farinacea K. M. Wong, Bambusa...

  13. Bambusa gurgandii K. M. Wong & M. H. Diep (Poaceae, Bambusoideae), a new species of bamboo from Vietnam

    Wong, Khoon Meng; Diep, My Hanh
    Bambusa Schreb. (Poaceae, Bambusoideae) is a large and complex tropical and subtropical Asian genus that is currently being taxonomically remodeled through morphological and molecular phylogenetic approaches. The type and type alliance of the genus is, however, morphologically well distinguished. Preliminary documentation suggests there could be some 60-70 species of Bambusa in Vietnam, although confirmation requires more rigorous herbarium-based vouchering. A new species of bamboo belonging to the type alliance, Bambusa gurgandii K. M. Wong & M. H. Diep, is described, known only from cultivated specimens in Vietnam. It belongs to the group of unarmed Bambusa species including Bambusa burmanica Gamble, Bambusa farinacea K. M. Wong, Bambusa...

  14. Lectotypification of Papaver cambricum L. (Papaveraceae)

    Ferrer Gallego, Pedro Pablo
    The typification of the name Papaver cambricum L. (Papaveraceae) is discussed. This species was previously accepted in the genus Meconopsis Vig. as Meconopsis cambrica (L.) Vig. The protologue of the name and the original material are evaluated. A specimen from the Burser Herbarium (UPS-BURSER) is designated as the lectotype.

  15. Lectotypification of Papaver cambricum L. (Papaveraceae)

    Ferrer Gallego, Pedro Pablo
    The typification of the name Papaver cambricum L. (Papaveraceae) is discussed. This species was previously accepted in the genus Meconopsis Vig. as Meconopsis cambrica (L.) Vig. The protologue of the name and the original material are evaluated. A specimen from the Burser Herbarium (UPS-BURSER) is designated as the lectotype.

  16. Typification of two Neotropical names of Loranthus Jacq. (Loranthaceae)

    Simões Caires, Claudenir; Proença, Carolyn E. B.
    The original specimens of Loranthus cucullaris Lam. (≡ Psittacanthus cucullaris (Lam.) G. Don) (Loranthaceae), collected by Jean-Baptiste Leblond, were located in P and the former neotypification proposal for this name is thus rejected. The identity and typification of Loranthus bracteatus Rich. are discussed and this name is considered a nomenclatural synonym of Loranthus cucullaris. The holotype of Loranthus florulentus Rich. (≡ Oryctanthus florulentus (Rich.) Tiegh.), also collected by Leblond was found in G.

  17. Typification of two Neotropical names of Loranthus Jacq. (Loranthaceae)

    Simões Caires, Claudenir; Proença, Carolyn E. B.
    The original specimens of Loranthus cucullaris Lam. (≡ Psittacanthus cucullaris (Lam.) G. Don) (Loranthaceae), collected by Jean-Baptiste Leblond, were located in P and the former neotypification proposal for this name is thus rejected. The identity and typification of Loranthus bracteatus Rich. are discussed and this name is considered a nomenclatural synonym of Loranthus cucullaris. The holotype of Loranthus florulentus Rich. (≡ Oryctanthus florulentus (Rich.) Tiegh.), also collected by Leblond was found in G.

  18. The genus Pandanus Parkinson (Pandanaceae) on Halmahera Island (Moluccas, Indonesia) with descriptions of three new species and a key to the species on the island

    Callmander, Martin W.; Buerki, Sven; Phillipson, Peter B.
    Halmahera is the largest (c. 18,000 km2) island of the Moluccan archipelago, but naturalists have only sporadically visited Halmahera and it has remained very poorly explored botanically. However, an intensive botanical inventory project was undertaken between 2012 and 2014 in part of the island to inform flora biodiversity management for certain proposed mining activities. This effort has contributed over 3600 plant collections and nearly doubled the number of Pandanus Parkinson (Pandanaceae) specimens (bringing the total to 55) available for Halmahera. After careful examination of all available material and comparison with other material from the region, we are able to present the first overview of the genus...

  19. The genus Pandanus Parkinson (Pandanaceae) on Halmahera Island (Moluccas, Indonesia) with descriptions of three new species and a key to the species on the island

    Callmander, Martin W.; Buerki, Sven; Phillipson, Peter B.
    Halmahera is the largest (c. 18,000 km2) island of the Moluccan archipelago, but naturalists have only sporadically visited Halmahera and it has remained very poorly explored botanically. However, an intensive botanical inventory project was undertaken between 2012 and 2014 in part of the island to inform flora biodiversity management for certain proposed mining activities. This effort has contributed over 3600 plant collections and nearly doubled the number of Pandanus Parkinson (Pandanaceae) specimens (bringing the total to 55) available for Halmahera. After careful examination of all available material and comparison with other material from the region, we are able to present the first overview of the genus...

  20. New records of lichens and lichenicolous fungi from La Gomera (Canary Islands, Spain), including the new species: Usnea boomiana P. Clerc

    Boom, Pieter P.G. van den; Clerc, Philippe
    Abstract VAN DEN BOOM, P. P. G., P. CLERC & D. ERTZ (2015). New records of lichens and lichenicolous fungi from La Gomera (Canary Islands, Spain), including the new species: Usnea boomiana P. Clerc. Candollea 70: 165-177. In English, English abstract. DOI: http://dx.doi.org/10.15553/c2015v702a1 Lichens and lichenicolous fungi are very diverse in the Canary Islands but the flora is still poorly known despite numerous recent publications. For this reason, two field trips were undertaken in 2011 in order to study the lichen flora of La Gomera (western Canary Islands). About 1000 specimens were collected in the different habitats of the island. In addition, c. 200 specimens collected in 1986,...

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