Showing papers on "Cestrum published in 2005"
TL;DR: As fenologias de floracao de quatro especies de Solanaceae presentes em um fragmento de Floresta Atlântica de planalto, encravado na cidade de Sao Paulo, foram determinadas por observacoes realizadas entre julho de 1993 e junho of 1995.
Abstract: The flowering phenologies of Sessea brasiliensis and three species of Cestrum (C. amictum, C. schlechtendalii and C. sendtnerianum), all belonging to the Solanaceae, were monitored in a fragment of the montane Atlantic rain forest within Sao Paulo city from July 1993 through June 1995. A total of 11,021 flies belonging to five species of the flavopilosa group of Drosophila (D. cestri, D. cordeiroi, D. hollisae, D. incompta and D. mariaehelenae), plus 1,244 flies belonging to four species of Zygothrica (Z. dispar, Z. vittimaculosa, Z. vittinubila and Z. aff. vittipunctata) emerged from 33,955 sampled flowers. Cestrum amictum, C. sendtnerianum and Sessea brasiliensis are recorded for the first time as host plants for the species of the Neotropical flavopilosa group ofDrosophila. Additionally, at least ten less abundant taxa belonging also to the Drosophilidae, plus 1,073 microhymenopteran parasitoids (Braconidae, Eucoilidae, and Pteromalidae), emerged from the sampled flowers of S. brasiliensis e Cestrum spp. The present study raised from nine to eleven the number of species of Cestrum previously recorded as breeding sites for these flies. A comprehensive list of species of Solanaceae known to host six species of Drosophila and four species of Zygothrica in southeastern and southern Brazil is included.
26 citations
TL;DR: Three taxa of anamorphic powdery mildews (Erysiphales: Ascomycota), referable to the teleomorph genus Golovinomyces on the Solanaceae in Australia, were determined by the RFLP analysis and sequencing of the rDNA ITS region.
Abstract: Three taxa of anamorphic powdery mildews (Erysiphales: Ascomycota), referable to the teleomorph genus Golovinomyces on the Solanaceae in Australia, were determined by the RFLP analysis and sequencing of the rDNA ITS region. The first taxon, part of an Oidium lycopersici-O. longipes clade, occurred on a range of host genera including Solanum, Cyphomandra, Lycopersicon, Nicotiana and Petunia. The second taxon consisted of specimens on Solanum tuberosum and Cestrum and was referable to the Golovinomyces orontii complex. The third taxon contained a single specimen from glasshouse grown Lycopersicon esculentum and is suspected to be G. biocellatus, a species previously known only from the Lamiaceae.
13 citations
01 Jan 2005
TL;DR: In this paper, the authors compared the leaf and stem anatomy of 13 native and cultivated species of Cestrum L. and Sessea vestioides (Schltdl.) Hunz., of the tribe Cestreae G. Don (Solanaceae) from Argentina.
Abstract: This article compares leaf and stem anatomy of the 13 native and cultivated species of Cestrum L. and Sessea vestioides (Schltdl.) Hunz., of the tribe Cestreae G. Don (Solanaceae) from Argentina. Herbarium and FAA-preserved material was employed. The leaf characters which best distinguished among species were: secondary vein architecture, marginal ultimate venation, stomata and hairs, cuticle characteristics, presence of fibres adjacent to external and internal phloem in the middle vein, sclereid presence and abundance in mesophyll and middle vein. In stems the best diagnostic characters were: sclereid presence and abundance in epidermis, cortex and pith, fibre presence adjacent to phloem, and the periderm origin. We did not identify any vegetative characters that clearly distinguished Sessea vestioides, the only species of the genus in Argentina, from Cestrum.
4 citations
01 Jan 2005
TL;DR: Systematic monthly collections of Cestrum were made in areas of southern Bahia Atlantic moist forest and the collected material was identified, described, and illustrated employing conventional methodology for botanical systematics.
Abstract: New occurrences of the Genus Cestrum L (Solanaceae) taxon for the state of Bahia-Brazil The objective of this study was to carry out a survey of the Cestrum species for southern Bahia Systematic monthly collections of Cestrum were made in areas of southern Bahia Atlantic moist forest The collected material was identified, described, and illustrated employing conventional methodology for botanical systematics The following specimens were collected and identified in this Cestrum lanceolatum Schott Ex Sendtn, C megalophyllum Dunal, C parqui L'Her, and C schlectendahlii G Don