Results 71 to 80 of about 5,803 (221)
Hemisyncarpy and appendicular nectary approached by floral ontogeny of Mandevilla velame (A. St.-Hil.) Pichon, Apocynoideae [PDF]
Pichon é um subarbusto com peculiar indumento albo-lanoso e flores vistosas brancas. Objetivando contribuir para o conhecimento morfológico desta espécie, estádios de desenvolvimento de suas flores foram documentados em microscopia eletrônica de ...
Castro, Marília de Moraes +2 more
core +3 more sources
The Lauxaniid fly Incurviseta cf. maculifrons (Malloch, 1925) is a locally abundant but poorly understood flower visitor in the Australian Alpine. We describe the flower visitation, pollen transport, pollen diet and mouthpart morphology of I. cf. maculifrons using field observations, pollen analyses and scanning electron microscopy. I. cf.
Tomas Mitchell‐Storey +3 more
wiley +1 more source
Flowering biology and structure of floral nectaries in Galanthus nivalis L.
In Poland Galanthus nivalis L. is partially protected. The flowers of this species are one of the first sources of nectar and pollen for insects from February to April. The aim of this study was to present the flowering biology as well as the topography,
Elżbieta Weryszko-Chmielewska +1 more
doaj +1 more source
Inga pitmanii (Fabaceae), a New Species from Madre de Dios, Peru [PDF]
Inga pitmanii K. G. Dexter & T. D. Penn., a new species of Inga Mill. from Madre de Dios, Peru, is described for the Fabaceae (Mimosoideae). Morphologically it is closest to I. chartacea Poepp.
Dexter, Kyle G, Pennington, Terence D
core +1 more source
Abstract Consumer–resource interactions can shift from exploitative to mutualistic when reciprocal benefits such as nutrient exchange offset the costs of damage or mortality, though these benefits are often difficult to detect. Carnivorous pitcher plants are typically viewed as exploiters of arthropod prey, yet most visitors escape capture and may gain
David W. Armitage +2 more
wiley +1 more source
To date, the structure of the cuniculus nectary has not been studied in detail. Furthermore, the secretory mechanism of such nectaries has not been investigated.
Małgorzata Stpiczyńska +2 more
doaj +1 more source
Floral structure and development in the monoecious palm Gaussia attenuata (Arecaceae; Arecoideae) [PDF]
Background and Aims Sexual dimorphism, at both the flower and plant level, is widespread in the palm family (Arecaceae), in contrast to the situation in angiosperms as a whole.
Castaño, Felipe +6 more
core
Passiflora clypeophylla, an endemic species to the Guatemalan karstic forests last seen in 1889 and deemed extinct, was rediscovered in the Department of Alta Verapaz, east of Cobán. The species was known only from a single specimen hailed from the type locality, Rubel Cruz, where it has been found again. An additional location has been identified in a
J.R. Kuethe +3 more
wiley +1 more source
The genus Zeyheria (Bignoniaceae) comprises only two species, both of which have been described as possessing a reduced and non-functional nectary disk.
Silvia Rodrigues Machado +2 more
doaj +1 more source
Mechanical defenses of plant extrafloral nectaries against herbivory
Extrafloral nectaries play an important role in plant defense against herbivores by providing nectar rewards that attract ants and other carnivorous insects.
Moshe Gish +2 more
doaj +1 more source

