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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 51 to 60 of 2660 (0.011 seconds)| 51 |
Systematic studies of the calamoid palmsBaker, William John January 1997 (has links)
No description available.
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| 52 |
Biodiversity of rhizobia which nodulate fast-growing tree legumes in tropical soilsBala, Abdullahi January 1999 (has links)
No description available.
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| 53 |
Systematics of the Strobilanthinae (Acanthaceae) of south-east AsiaBennett, Jonathan January 2001 (has links)
No description available.
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| 54 |
Systematics of Hemigraphis Nees (Acanthaceae)Moylan, Elizabeth Clare January 2001 (has links)
No description available.
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| 55 |
Systematics of Uncinia Pers. (Cyperaceae)Starr, Julian Richard January 2001 (has links)
No description available.
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| 56 |
Identification of conifer families using SEM analysis of fossil and extant conifer leaf cuticlesEwin, Timothy Alfred January 2004 (has links)
The cuticles of 58 extant conifer species are examined using scanning electron microscopy (SEM) and described in detail for the first time. The chosen species include representatives of all extant conifer families and also coincide with the species used in various recent genetic conifer phylogenies. A detailed phylogeny of the Coniferales has been compiled by the amalgamation of published genetic phylogenies. Sixty nine cuticle characteristics are identified and scored a numerical system, similar to numerical analyses by Alvin et al (1982). The character scores are plotted onto the Conifer phylogeny using the computer program MacClade 3.04 which is also used to display visually the distribution of each cuticle character. This allows the distribution of the characters to be examined easily, over the entire conifer phylogeny, and thus for groups of characters shared between species from the same family to be recognised. The cuticle characters of 38 other extant conifer species are taken from published accounts, scored and plotted onto the phylogeny by the same method. Lists of diagnostic cuticle characters for each conifer family are presented. The six modern conifer families are differentiated using leaf and cuticle characteristics alone. The cuticle characters indicative of the extant conifer families have been identified in the cuticles of several Mesozoic conifers previously assigned to modern conifer families on the basis of reproductive organs. Most of the descriptions of these fossil species are taken from published literature, with a further 18 fossil species examined by SEM for the first time. It is demonstrated that fossil cuticles display the same cuticle and leaf characteristics as the extant forms and can be assigned to modern families on this basis. Thus the assignment of some fossil species to modern genera or supra generic groups can be questioned using evidence from cuticles. Well-presented conifer cuticles of previously unknown affinity can be confidently or tentatively placed within modern families.
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| 57 |
The spores of the Carboniferous lycopodsChaloner, W. G. January 1953 (has links)
No description available.
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| 58 |
Contributions to the knowledge of the Deccan intertrappean flora of IndiaChitaley, S. D. January 1955 (has links)
No description available.
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| 59 |
Taxonomic studies in the Umbelliferae tribe CaucalideaeJury, Stephen Leonard January 1978 (has links)
No description available.
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| 60 |
The Genus Euphorbia L. in Saudi ArabiaAldhebiani, Amal Yahya January 2010 (has links)
No description available.
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