Erdtman 1952 pollen morphology pdf

Click download or read online button to get an introduction to palynology 1 pollen morphology and plant taxonomy angiosperms book now. Laboratory of biodiversity and apiculture, department of botany, bangalore university, bangalore560056, india abstract pollen taxonomy is the prerequisite to compare the pollen present in honey samples with special reference to. May, 2008 the pollen morphology of 105 species of saxifraga has been investigated. Although sulcate monosulcate pollen is the most common type in iridaceae, various other forms have been reported, such as bisulcate, inaperturate and spiraperturate erdtman 1952. Systematic importance of pollen morphological features of. The measurements and observations were carried out with both light microscopy and scanning. Our study differs substantively from the only other survey of pollen morphology in sarracenia l.

Pollen morphology of some species in the family solanaceae adedeji, o. In addition, carine and scotland 1998 surveyed the. Generally speaking, the pollen morphology coincides with the description for the genus erdtman, 1952, but the muri are simplibaculate and the lumina have bacula. On the basis of morphology grudzinskaya 1967 favors links idea 1831 of dividing the ulmaceae into two. Nymphaea species have high morphological plasticity. Asphodelaceae has been inbestigated by light and scanning electron microscopy. The measurements and observations were carried out with both light microscopy and scanning electron microscopy. Otto gunnar elias erdtman 18 november 1897 18 february 1973 was a swedish botanist and pioneer in palynology.

The significance of pollen morphology in plant systematics has been stressed by a number of workers, especially by lindley 1830 40, fri tzsche, 1832. Pollen morphology and its relationship to taxonomy of the genus sarracenia sarraceniaceae w. The significance of pollen morphology in the taxonomy of. Pollen morphology in the genus saxifraga and its taxonomic. Gunnar erdtman 18971973 swedish 1933 developed acetolysis technique 1943 an introduction to pollen analysis 1952 pollen morphology and plant taxonomy. General descriptions of pollen morphology were provided by erdtman 1952,1969, and some details of pollen structure were described based on light microscopy by canright 1953, agababian 1972, walker 1976a,b and long 1982. Pollen morphology of 25 apocynaceae species in the adolpho. Pollen size classes follow erdtman 1952 as based the length of the pollen grains longest axis. Dilleniaceae was briefly described at the species level by.

Pollen morphology of the family bombacaceae sciencedirect. Erdtmanpollen morphology and plant taxonomy an introduction to palynology, 1. The list of voucher specimens are deposited in kuh the pollen grains were prepared for light lm and scanning microscopy sem by the standard methods described by erdtman 1952. Results and discussion the pollen units observed were only monads and tetrads. Pollen characters in 16 southern african type specimens of androcymbium willd. Pollen shape classification follows erdtman 1952 as based on the pe ratio. The pollen morphology of the three species of the genus. The first page of the pdf of this article appears above.

The present study compared pollen micromorphological characters among 20 iranian. The pollen morphology of anacardiaceae, meliaceae, rutaceae and simaroubaceae is more or less distinct from that of burseraceae. Pollen morphology of the studied taxa of malvaceae 1 abelmoschus esculentus x 500 2hibiscus trionum x 750 3 hibiscus rosasinensis x 750 4 hibiscussp. Popularized fossil pollen analysis in the 1920s and 1930s through both his english language publications and a lecturecollecting tour in north america.

This site is like a library, use search box in the widget to. The unique pollen morphology of duparquetia leguminosae. The striate pattern is found to be the most common and is divided into eight subtypes. The bacula of different height seen in the ultrathin sections correspond to those of the lumina and the muri. Pollen morphology with reference to the taxonomy and phylogeny of. In wellknown works on pollen morphology wodehouse, 1935. Scrophulariaceae is a eurypalynous family erdtman, 1952 and most of its pollen are radially symmetrical, isopolar, oblatespheroidal or subspheroidal or subprolate, tricolporate rarely tetracolporate perveen, 1993. Department of botany, obafemi awolowo university, ileife, osun state, postal codea234, nigeria. The pollen morphology of the 16 recognized species of the genus asphodelus l. Pollen morphological variation of primula merrilliana and its. Statistical analyses were based on calculations of the arithmetic mean x, standard deviation s x, sample standard deviation s, coef.

Angiosperms volume 1 of pollen morphology and plant taxonomy volume 1 of pollen morphology and plant taxonomy. Erdtman described pollen morphology for most angiosperm families recognized at the time, and wrote down his numerous observations. Pollen morphological characteristics are also sometimes useful in classification of related species, and frequently reveal. Macro and micromorphological studies on seven species of heliotropium l. Pollen morphology has been described for about 60% of rutaceae genera, representative of all seven subfamilies engler 1931.

Microsporogenesis, microgametogenesis and pollen morphology. In contrast to pollen, spores usually show a triradiate mark, the ymark which is formed by the dehiscencelists and furrows and which aids in germination potonie, 1956. Pollen size was characterised according to the method of erdtman 1952 and using the terminology of punt et al. Terminology follows that of erdtman 1952 and punt er trl. Pollen and seed morphology of rhinacanthus nees and sol. Pollen morphology and ultrastructure of selected species. Pollen and spore morphology plant taxonomy by erdtman, g. Dryandra pollen has successive cytokinesis with a distinct dyad stage followed by the formation of. The sizc classes of pollen sollowing erdtman 1952 are classified as small 1025 yrn. Pollen morphology of carapa species meliaceae from the.

Erdtman 1952 was the first author to study the subdivision of meliaceae into subfamilies based on pollen morphology. An introduction to palynology 1 pollen morphology and plant. Pollen morphology of asphodecltrs l taxonomic and phylogenetic inferences at the infrageneric level. Later, the pollen morphology of the genera cedrela and trichilia was studied by roubik and moreno 1991 and silvestrecapelato et al. Furness 1995, 1990, 1989 and furness and grant 1996 studied the pollen morphology of different genera of acanthaceae in africa while perveen and qaiser 2010 carried out similar study on acanthaceae in pakistan. Pollen morphology and ultrastructure of selected species of. Lee2 the pollen flora of singapore and malaya has been studied very little despite the wealth of the lush tropical vegetation. Angiosperm families in general can be divided arbitrarily into two types based on the pollen features.

Pollen morphology and its relationship to taxonomy of the. Pollen morphological data for all species are sumn1a1iscd in table 2. An introduction to pollen analysis 1943 pollen morphology and plant taxonomy. The aim of this study is verification of the taxonomic usefulness of the pollen grain features studied, based on pollen morphology of 32 wild species from all 4 subgenera and all 10 sections of the genus rosa, mainly for delimitation of subgenera, sections, and species. Download an introduction to palynology 1 pollen morphology and plant taxonomy angiosperms or read online books in pdf, epub, tuebl, and mobi format. Pollen morphology of the platycodonoid group campanulaceae s. Baker botany department, university of leeds received 9 september 1954 with 4 figures in the text the name palynogram was introduced by erdtman 1951, 1952 to describe a standardized illustration of the morphology of a pollen grain or spore. Erdtman systematically studied pollen morphology and developed the method of acetolysis in pollen studies. Palynonlorphologically maxwellia seelns better be placed in the tiliaceae, erdtman 1952, p, 421 states that the pollen grain in maxwellta lepidota are sterculiaceous rather than bonlhacaceous palynomorphologically very similar to the bulk of the species met with in durin.

Pollen measurements were taken under x40 and xl 00 objective lenses using a calibrated graticule and were based on 40 grains selected randomly from five slides for each species. In proteaceae, three of 50 genera banksia and dryandra and some species of embothrium have consistently diaperturate pollen erdtman, 1952. Ornamentation patterns and aperture types of pollen grains usually have significance in systematic studies at various taxonomic levels, including families, tribes and genera dajoz et al. Bonamia thouars comprises 65 species wcsp, 2017ofwidedistribu. For this purpose, mature pollen grains taken from unopened flowers, were prepared, fixed and exhaustively investigated using scanning electron microscopy sem. That part of the spore which is directed outwards in its tetrad erdtman 1952. Ultrastruktur morfologi polen arundina graminifolia d. The pollen morphology of pelargonium endlicherianum. Pollen morphology and ultrastructure of calyceraceae. Pollen morphology of selected bee forage plants shubharani, r. Pollen morphology in the palmae, with special reference to trends in. Traditional palynology usually characterizes apertures.

Pollen morphology and infrageneric classification of. The study investigates the significance of pollen morphology in the systematics of some species in the family solanaceae. For sem, pollen grains were dehydrated through an ethanol series, critical point dried with a hitachi hcp2 critical point drying apparatus, mounted on aluminum stubs and sputter. Pollen morphology and plant taxonomy angiosperms journal of. Pollen morphology of nine species belonging to six genera of tribe hemimerideae representing the basalmost clade of scrophulariaceae s. Pollen morphology of species from all six genera of calyceraceae acicarpha, boopis, calycera, gamocarpha, moschopsis, and nastanthus and representatives of the campanulaceae and goodeniaceae is examined with light lm, scanning sem, and transmission tem electron microscopy. Pollen wall development of three genera was investigated by gabarayeva 1986, 1987b, 1991a, 1996. Four major types of sexine pattern are recognized, namely reticulate, granular, striate and very finely striate with superimposed granules or verrucae. Pollen samples were obtained from karachi university herbarium kuh or collected from the field.

With the publication of his 1921 thesis in german, pollen analysis became known outside scandinavia. The intensive study of pollen morphology has added a new dimension to angiosperm taxonomy, of particular value at the generic level. The pollen morphology of 105 species of saxifraga has been investigated. Erdtman, 1952 few of the indigenous plants of southeast asia have been described. The pollen morphology was analyzed by several authors, as an important taxonomic tool for the genera belonging to tribes ipomoeae and merremieae hallier, 1893. The pollen morphology characters of each species were evaluated for morphometric analysis, comprising quantitative and five qualitative characters table 2. In this study we document pollen characteristics of members of the genus sarracenia sarraceniaceae and examine how these characters relate to our current understanding of the systematics of these pitcher plants. Pollen morphology of some species in the family solanaceae. Pollen grains in hemimerideae are 3 or 68colpate or 3 or 58colporate, prolate, spheroidal or oblatespheroidal in shape.

Pdf pollen morphology of dilleniaceae in thailand researchgate. His book on pollen morphology in angiosperms remains a primary reference in palynology. More than sixty origins of pantoporate pollen in angiosperms. It is opportune at this juncture to refer the classical works of woodehouse, 1935 and erdtman, 1943 and 1952 dealing with the pollen grains in plant taxonomy. P p p p 1 pscience program, department of communication sciences and disorders, emerson college, boston, ma 02116 2. Since previous authors have already conducted extensive observations on the pollen morphology of canarina erdtman 1952.

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