Pollen morphology in Psychotria (Rubiaceae, Rubioideae, Psychotrieae) and its taxonomic significancea preliminary survey
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Council for Nordic Publications in Botany , Copenhagen
Psychotria -- Pollen -- Morphology., Psychotria -- Classifica
|Statement||Jan Thomas Johansson.|
|Series||Opera botanica -- 115.|
|LC Classifications||QK495.R85 J64 1992|
|The Physical Object|
|Pagination||69 p. :|
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The pollen morphology in species of Psychotria (Rubiaceae, Rubiodeae, Psychotrieae) has been investigated using light microscopy and, for 61 of the speices, scanning electron microscopy. Transmission electron microscopical studies have been carried out for seven of the species.
Psychorria is very heterogeneoous pollen morphologically and pollen grain characteristics cannot be used for the. Get this from a library. Pollen morphology in Psychotria (Rubiaceae, Rubioideae, Psychotrieae) and its taxonomic significance: a preliminary survey.
[Jan Thomas Johansson]. Books About The pollen grains of Psychotria cephalophora were spherical, had 3 or 4 colpi, and had reticulate exine. Polar axis/ equatorial axis ratio (E/P ratio) of pollen grains was about in both morphs. We described detailed floral morphology and incompatibility of Psychotria cephalophora on Lanyu for the first by: 7.
Reproductive studies in ipecac (Psychotria ipecacuanha (Brot.) stockes; Rubiaceae): pollen development and morphology. Pollen morphology The pollen polymorphism was observed within and between the two floral floral morphs (Types I to V; Fig.
The morphology of the pollen grains found in each floral morph is described in Table 1. Figure 13 - 16 Morphology of pollen from longistylous flower in Psychotria ipecacuanha. 13). Morphology of pollen from longistylous flower in Psychotria ipecacuanha.
13) Equatorial view of type IV showing reticulate tectum with white line showing colpus with 14 µm (Bar = 10 µm).
The chapter “Illustrated Pollen Terms” is the main part of this book and comprises more than widely used terms illustrated with over 1, high-quality images. Pollen morphology of. Pollen morphology and its relationship to taxonomy of the genus Sarracenia (Sarraceniaceae) W.
Oswald P 1,2 P, E. Doughty P 2 P, G. Ne’eman P 3 P, R. Ne’eman P 4 P, and A. Ellison P 2. P P P P 1 PScience Program, Department of Communication Sciences and Disorders, Emerson College, Boston, MA 2 P Harvard Forest, Harvard University, North Main Street, Petersham, MA.
Plates are organised by pollen morphology to allow ease of reference when examining fossil pollen material; following. The paper is accompanied by a searchable online database which integrates the images presented here with the c. images of Pollen morphology in Psychotria book taxa from the Neotropical Pollen database (Bush and Weng, ).
However, pollen illustrations of some tropical angiospermous plants, particularly abundant in the Western Ghats have been incorporated in this chapter (Figs. a-p). Pollen Morphology of Mimosoids. The following pollen morphological descriptions of some mimosoids are accompanied by Fig.
a-r. Acacia auriculiformis A. cunn. The pollen morphology associated with the heterodistyly has been reported for many species, including species from the family Rubiaceae (Bir Bahadur, ; Huysmans et a., ). Jung-Mendaçolli and Melhem () studied the pollen morphology of nine species of Psychotria.
The chapter “Illustrated Pollen Terms” is the main part of this book and comprises more than widely used terms illustrated with over 1, high-quality images.
Download Pollen morphology in Psychotria (Rubiaceae, Rubioideae, Psychotrieae) and its taxonomic significance PDF
It provides a detailed survey of the manifold ornamentation and structures of pollen, and offers essential insights into their stunning beauty. Abstract.
The taxonornic history of Psychotria asiatica L., the type species of the genus Psychotria L., is introduced and discussed in. detail. For the first time, the name P. asiaticu is unambiguously linked with wild populations of Psychotria from south-east China, allowing critical morphological characteristics and geographical distribution of Psychotria sensu stricto to be known.
Details Pollen morphology in Psychotria (Rubiaceae, Rubioideae, Psychotrieae) and its taxonomic significance EPUB
The general chapter on pollen morphology, anatomy, and pollen development deals with essential aspects of palynology. Where appropriate, ambiguous or poorly recognized aspects are explained in greater detail, based on the present state of knowledge in palynology.
'The Hesse et al. 'Pollen Terminology' book is an extraordinary work. The pollen morphology of 23 Brazilian native species of Rubiaceae Juss. from forest fragments of a Cerrado area was analyzed using light microscopy (LM) and scanning electron microscopy (SEM), in the search for new characters that might increase the knowledge on the pollen morphology of the species, and also aiming to help in the taxonomic characterization of the genera.
Reproductive studies in ipecac (Psychotria ipecacuanha (Brot.) stockes; Rubiaceae): pollen development and morphology Pollen morphology was studied using SEM, which showed pollen polymorphism within and between the two floral morphs.
Five types of pollen with reticulate or perforate exine were identified. The characteristics showed that the. Lamiids, a clade composed of approximately 15% of all flowering plants, contains more t species dispersed across 49 families and eight orders (APG IV, ).
This paper is the eighth in a series that analyzes pollen characters across angiosperms. We reconstructed a maximum likelihood tree based on the most recent phylogenetic studies for the Lamiids, comprising terminal genera. Pollen of 34 species from 7 genera of the Liliaceae were examined by LM and SEM with respect to the taxonomy of the family.
Detailed pollenmorphological characteristics are given for all genera in the family on the basis of the results presented here together with data from the literature.
CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The aim of this work was to carry out the reproductive studies on Brazilian accessions of ipecac, Psychotria ipecacuanha.
It presented heterostyly, with brevistylous and longistylous flowers. The pollen development was observed from the sections of the anthers embedded in resin.
Pollen Morphology and Plant Taxonomy—Angiosperms: An Introduction to Palynology, Vol. olm: Almqvist & Wiksell; Waltham, Mass.: Chronica Botanica. Johansson () studied the pollen morphology of species of Psychotria s His study well illustrated the variation for almost each character, which resulted in the characterization of 22 pollen.
The floral morphology, breeding system and pollinators of four natural populations of Psychotria elata (Rubiaceae), found in tropical rainforests of Costa Rica, were examined.
Anisoplethy and distylous morphology were observed in all studied populations. The number of flowers per inflorescence was significantly higher in the most abundant morph (p. Pollen morphology of six species representing three genera of tribe Aptosimeae and six species representing two genera of tribe Myoporeae (Scrophulariaceae) is described and illustrated using light microscopy (LM) and scanning electron microscopy (SEM).Pollen grains in Aptosimeae are 3-syncolporate, prolate, sometimes oblate-spheroidal in shape; mainly medium-sized, occasionally in.
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Description Pollen morphology in Psychotria (Rubiaceae, Rubioideae, Psychotrieae) and its taxonomic significance PDF
Books. An illustration of two cells of a film strip. Video. An illustration of an audio speaker. Audio. An illustration of a " floppy disk. Pollen and spore morphology/plant taxonomy; gymnospermae, pteriodophyta, bryophyta (Illustrations) Item Preview.
However, pollen transfer is often asymmetric, with one floral morph acting as a pollen donor and the other as a pollen recipient. We evaluated the association between floral morphology, pollinator visitation and effectiveness on patterns of pollen transfer in distylous Palicourea tetragona at La Selva Biological Station in Costa Rica.
To assess. Paperback or Softback. Condition: New. Pollen and Spore Morphology/Plant Taxonomy; Gymnospermae, Pteriodophyta, Bryophyta (Illustrations). Book. Seller Inventory # BBS More information about this seller | Contact this seller In part, the pollen data reinforce the traditional view of closely related pairs or small groups of genera.
In Berberis and Mahonia the pollen morphology would support separate family status as well as congeneric treatment. The unusual exine structure in Nandina would reinforce its treatment as a monotypic family, Nandinaceae.
Topics covered include the rapidly advancing field of monocot fossils, aquatic adaptations in pollen and anther structure and pollination strategies and floral developmental morphology.
The book also presents a new plastid sequence analysis of early monocots and a review of monocot phylogeny as a whole, placing in an evolutionary context a.
O'Neil () also showed differences ip seed set and morph-specific pollen limitation. In Psychotria suerrensis, although pin pollen was transferred more efficiently than thrum pollen, over- all rates of disassortative pollination to the two morphs did not differ (because more thrum pollen is captured by stigmas), and fruit production by the.
pollen morphology of the genus Hibiscus and  on pollen morphology of three species of Emilia.  also characterized and documented the taxonomic importance of pollen attributes of some woody plant species of the Cross River National Park, Nigeria. Similar. The chemical composition of bee pollens differs greatly and depends primarily on the botanical origin of the product.
Therefore, it is a crucially important task to discriminate pollens of different plant species. In our work, we aim to determine the applicability of microscopic pollen analysis, spectral colour measurement, sensory, NIR spectroscopy, e-nose and e-tongue methods for the.
The author offers an overview of pollen biology and biotechnology for students and researchers in areas such as reproductive biology, biotechnology, aeropalynology, plant breeding, horticulture, and forestry. Citing more than 1, references to pollen research, the text covers topics including advances in understanding pollen tube growth, the use of pollen for gene transfer, and .Morphology of Pollen Grains 1- Polarity The Polar Axis is the straight line between the distal and proximal poles of a pollen grain or a spore Pollen grains can therefore be: A- Isopolar (the proximal and distal faces of the exine are alike) B- Heteropolar (the distal and proximal faces of the exine are different, either in shape, ornamentation.
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