Nectarios extraflorales en Piriqueta y Turnera (Turneraceae).

GONZALEZ A. M; M. NATALIA OCANTOS

Boletín de la Sociedad Argentina de Botánica

Sociedad Argentina de Botánica.

Año: 2006 p. 269 - 284

Extrafloral nectaries in Piriqueta and Turnera (Turneraceae). The anatomical and morphological characters of the extrafloral nectaries were studied in 4 species of Piriqueta, and in 16 which belong to six of the seven series of Turnera (Turneraceae) that present these glands. They were classified according to its form and degree of development and a new type of “pore” was described: foveolate. Based on morpho-anatomical characters, a probable morphological sequence was proposed. This would locate the species with flattened EFN and without “pores” in a lower position; after that, the species with flattened nectaries and foveolate “pores” are found; in an intermediate position the elevated extrafloral nectaries (EFN) - sphericals or hemisphericals as well as cupuliforms –were found; finally, the cupuliform EFN with crateriform or mesetiform “pore” are found. Several species of diverse series presented variable characters, being located in an unlike position in the proposed morphological sequence; species with heterogeneous characters were also observed, being difficult to establish their location in the sequence. according to its form and degree of development and a new type of “pore” was described: foveolate. Based on morpho-anatomical characters, a probable morphological sequence was proposed. This would locate the species with flattened EFN and without “pores” in a lower position; after that, the species with flattened nectaries and foveolate “pores” are found; in an intermediate position the elevated extrafloral nectaries (EFN) - sphericals or hemisphericals as well as cupuliforms –were found; finally, the cupuliform EFN with crateriform or mesetiform “pore” are found. Several species of diverse series presented variable characters, being located in an unlike position in the proposed morphological sequence; species with heterogeneous characters were also observed, being difficult to establish their location in the sequence. six of the seven series of Turnera (Turneraceae) that present these glands. They were classified according to its form and degree of development and a new type of “pore” was described: foveolate. Based on morpho-anatomical characters, a probable morphological sequence was proposed. This would locate the species with flattened EFN and without “pores” in a lower position; after that, the species with flattened nectaries and foveolate “pores” are found; in an intermediate position the elevated extrafloral nectaries (EFN) - sphericals or hemisphericals as well as cupuliforms –were found; finally, the cupuliform EFN with crateriform or mesetiform “pore” are found. Several species of diverse series presented variable characters, being located in an unlike position in the proposed morphological sequence; species with heterogeneous characters were also observed, being difficult to establish their location in the sequence. according to its form and degree of development and a new type of “pore” was described: foveolate. Based on morpho-anatomical characters, a probable morphological sequence was proposed. This would locate the species with flattened EFN and without “pores” in a lower position; after that, the species with flattened nectaries and foveolate “pores” are found; in an intermediate position the elevated extrafloral nectaries (EFN) - sphericals or hemisphericals as well as cupuliforms –were found; finally, the cupuliform EFN with crateriform or mesetiform “pore” are found. Several species of diverse series presented variable characters, being located in an unlike position in the proposed morphological sequence; species with heterogeneous characters were also observed, being difficult to establish their location in the sequence. characters of the extrafloral nectaries were studied in 4 species of Piriqueta, and in 16 which belong to six of the seven series of Turnera (Turneraceae) that present these glands. They were classified according to its form and degree of development and a new type of “pore” was described: foveolate. Based on morpho-anatomical characters, a probable morphological sequence was proposed. This would locate the species with flattened EFN and without “pores” in a lower position; after that, the species with flattened nectaries and foveolate “pores” are found; in an intermediate position the elevated extrafloral nectaries (EFN) - sphericals or hemisphericals as well as cupuliforms –were found; finally, the cupuliform EFN with crateriform or mesetiform “pore” are found. Several species of diverse series presented variable characters, being located in an unlike position in the proposed morphological sequence; species with heterogeneous characters were also observed, being difficult to establish their location in the sequence. according to its form and degree of development and a new type of “pore” was described: foveolate. Based on morpho-anatomical characters, a probable morphological sequence was proposed. This would locate the species with flattened EFN and without “pores” in a lower position; after that, the species with flattened nectaries and foveolate “pores” are found; in an intermediate position the elevated extrafloral nectaries (EFN) - sphericals or hemisphericals as well as cupuliforms –were found; finally, the cupuliform EFN with crateriform or mesetiform “pore” are found. Several species of diverse series presented variable characters, being located in an unlike position in the proposed morphological sequence; species with heterogeneous characters were also observed, being difficult to establish their location in the sequence. six of the seven series of Turnera (Turneraceae) that present these glands. They were classified according to its form and degree of development and a new type of “pore” was described: foveolate. Based on morpho-anatomical characters, a probable morphological sequence was proposed. This would locate the species with flattened EFN and without “pores” in a lower position; after that, the species with flattened nectaries and foveolate “pores” are found; in an intermediate position the elevated extrafloral nectaries (EFN) - sphericals or hemisphericals as well as cupuliforms –were found; finally, the cupuliform EFN with crateriform or mesetiform “pore” are found. Several species of diverse series presented variable characters, being located in an unlike position in the proposed morphological sequence; species with heterogeneous characters were also observed, being difficult to establish their location in the sequence. according to its form and degree of development and a new type of “pore” was described: foveolate. Based on morpho-anatomical characters, a probable morphological sequence was proposed. This would locate the species with flattened EFN and without “pores” in a lower position; after that, the species with flattened nectaries and foveolate “pores” are found; in an intermediate position the elevated extrafloral nectaries (EFN) - sphericals or hemisphericals as well as cupuliforms –were found; finally, the cupuliform EFN with crateriform or mesetiform “pore” are found. Several species of diverse series presented variable characters, being located in an unlike position in the proposed morphological sequence; species with heterogeneous characters were also observed, being difficult to establish their location in the sequence. Piriqueta and Turnera (Turneraceae). The anatomical and morphological characters of the extrafloral nectaries were studied in 4 species of Piriqueta, and in 16 which belong to six of the seven series of Turnera (Turneraceae) that present these glands. They were classified according to its form and degree of development and a new type of “pore” was described: foveolate. Based on morpho-anatomical characters, a probable morphological sequence was proposed. This would locate the species with flattened EFN and without “pores” in a lower position; after that, the species with flattened nectaries and foveolate “pores” are found; in an intermediate position the elevated extrafloral nectaries (EFN) - sphericals or hemisphericals as well as cupuliforms –were found; finally, the cupuliform EFN with crateriform or mesetiform “pore” are found. Several species of diverse series presented variable characters, being located in an unlike position in the proposed morphological sequence; species with heterogeneous characters were also observed, being difficult to establish their location in the sequence. according to its form and degree of development and a new type of “pore” was described: foveolate. Based on morpho-anatomical characters, a probable morphological sequence was proposed. This would locate the species with flattened EFN and without “pores” in a lower position; after that, the species with flattened nectaries and foveolate “pores” are found; in an intermediate position the elevated extrafloral nectaries (EFN) - sphericals or hemisphericals as well as cupuliforms –were found; finally, the cupuliform EFN with crateriform or mesetiform “pore” are found. Several species of diverse series presented variable characters, being located in an unlike position in the proposed morphological sequence; species with heterogeneous characters were also observed, being difficult to establish their location in the sequence. six of the seven series of Turnera (Turneraceae) that present these glands. They were classified according to its form and degree of development and a new type of “pore” was described: foveolate. Based on morpho-anatomical characters, a probable morphological sequence was proposed. This would locate the species with flattened EFN and without “pores” in a lower position; after that, the species with flattened nectaries and foveolate “pores” are found; in an intermediate position the elevated extrafloral nectaries (EFN) - sphericals or hemisphericals as well as cupuliforms –were found; finally, the cupuliform EFN with crateriform or mesetiform “pore” are found. Several species of diverse series presented variable characters, being located in an unlike position in the proposed morphological sequence; species with heterogeneous characters were also observed, being difficult to establish their location in the sequence. according to its form and degree of development and a new type of “pore” was described: foveolate. Based on morpho-anatomical characters, a probable morphological sequence was proposed. This would locate the species with flattened EFN and without “pores” in a lower position; after that, the species with flattened nectaries and foveolate “pores” are found; in an intermediate position the elevated extrafloral nectaries (EFN) - sphericals or hemisphericals as well as cupuliforms –were found; finally, the cupuliform EFN with crateriform or mesetiform “pore” are found. Several species of diverse series presented variable characters, being located in an unlike position in the proposed morphological sequence; species with heterogeneous characters were also observed, being difficult to establish their location in the sequence. Piriqueta, and in 16 which belong to six of the seven series of Turnera (Turneraceae) that present these glands. They were classified according to its form and degree of development and a new type of “pore” was described: foveolate. Based on morpho-anatomical characters, a probable morphological sequence was proposed. This would locate the species with flattened EFN and without “pores” in a lower position; after that, the species with flattened nectaries and foveolate “pores” are found; in an intermediate position the elevated extrafloral nectaries (EFN) - sphericals or hemisphericals as well as cupuliforms –were found; finally, the cupuliform EFN with crateriform or mesetiform “pore” are found. Several species of diverse series presented variable characters, being located in an unlike position in the proposed morphological sequence; species with heterogeneous characters were also observed, being difficult to establish their location in the sequence. according to its form and degree of development and a new type of “pore” was described: foveolate. Based on morpho-anatomical characters, a probable morphological sequence was proposed. This would locate the species with flattened EFN and without “pores” in a lower position; after that, the species with flattened nectaries and foveolate “pores” are found; in an intermediate position the elevated extrafloral nectaries (EFN) - sphericals or hemisphericals as well as cupuliforms –were found; finally, the cupuliform EFN with crateriform or mesetiform “pore” are found. Several species of diverse series presented variable characters, being located in an unlike position in the proposed morphological sequence; species with heterogeneous characters were also observed, being difficult to establish their location in the sequence. Turnera (Turneraceae) that present these glands. They were classified according to its form and degree of development and a new type of “pore” was described: foveolate. Based on morpho-anatomical characters, a probable morphological sequence was proposed. This would locate the species with flattened EFN and without “pores” in a lower position; after that, the species with flattened nectaries and foveolate “pores” are found; in an intermediate position the elevated extrafloral nectaries (EFN) - sphericals or hemisphericals as well as cupuliforms –were found; finally, the cupuliform EFN with crateriform or mesetiform “pore” are found. Several species of diverse series presented variable characters, being located in an unlike position in the proposed morphological sequence; species with heterogeneous characters were also observed, being difficult to establish their location in the sequence.