Topic
Cestrum
About: Cestrum is a research topic. Over the lifetime, 110 publications have been published within this topic receiving 1158 citations.
Papers published on a yearly basis
Papers
More filters
30 Jul 2012
TL;DR: The mature anther wall of Cestrum bigibbosum consist of a papillae epidermis and one layer of endothecium as mentioned in this paper, showing periclinal division in some zones.
Abstract: The mature anther wall of Cestrum bigibbosum consist of a papillae epidermis and one layer of endothecium. The development of the anther wall retrieves the dicotyledoneous type, showing periclinal division in some zones of the middle layer. The endothecium shows a reticulate pattern of thickening, with more branches in the central region of the cell. The tapetum is secretory and degenerates at the free microspore stage. Microspore tetrads are tetrahedral and the pollen grain is two-celled at the shedding stage. Taxonomic significance of male gametophyte is discussed.
01 Jan 2012
TL;DR: The mature anther wall of Cestrum bigibbosum consist of a papillae epidermis and one layer of endothecium, which retrieves the dicotyledoneous type and taxonomic significance of male gametophyte is discussed.
Abstract: The mature anther wall of Cestrum bigibbosum consist of a papillae epidermis and one layer of endothecium. The development of the anther wall retrieves the dicotyledoneous type, showing periclinal division in some zones of the middle layer. The endothecium shows a reticulate pattern of thickening, with more branches in the central region of the cell. The tapetum is secretory and degenerates at the free microspore stage. Microspore tetrads are tetrahedral and the pollen grain is two-celled at the shedding stage. Taxonomic significance of male gametophyte is discussed.
TL;DR: A review of literature and herbarium collections (BM, BR, CAS, CIMI, CODAGEM, E, EBUM, ENCB, F, G, GH, IBUG, IEB, K, L, M, MEXU, MICH, NDG, NY, P, PH, QMEX, US) of Cestrum from Mexico was conducted as mentioned in this paper.
Abstract: Background and Aims: Cestrum nitidum was described based on herbarium specimens collected by H. Galeotti around Ixtlan de Juarez, Oaxaca, Mexico. Subsequently, this epithet was erroneously used for specimens from the Sierra Madre del Sur and the Trans-Mexican Volcanic Belt. This work clarifies this taxonomic conflict. Methods: A review of literature and herbarium collections (BM, BR, CAS, CIMI, CODAGEM, E, EBUM, ENCB, F, G, GH, IBUG, IEB, K, L, M, MEXU, MICH, NDG, NY, P, PH, QMEX, US) of Cestrum from Mexico was conducted. Key results: The name Cestrum nitidum should only be applied to collections from around Ixtlan de Juarez, Oaxaca, with aromatic and long pedicelled flowers, placed on elongated and lax panicles. Conclusions: Cestrum commune is the correct name for specimens distributed in the Sierra Madre del Sur and the Trans-Mexican Volcanic Belt. Cestrum nitidum must be maintained for specimens from Ixtlan de Juarez, Sierras Orientales Province, Oaxaca.
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
01 Jan 2016
TL;DR: From the leaves of Cestrum taylori Britt & Wills as mentioned in this paper isolated and identified two sterols, which were identified from their spectroscopic data from proton NMR and carbon thirteen, and mass spectroscopy as 16-α-Hidroxidormantinona- and Dorminantinol.
Abstract: From the leaves of Cestrum taylori Britt & Wills they were isolated and identified two sterols, which were identified from their spectroscopic data from proton NMR and carbon thirteen, and mass spectroscopy as 16-α-Hidroxidormantinona- and Dormantinol.