Plant morphology and anatomy book pdf
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AIIMS / NEET 2019 - Biology: Plant Morphology Lecture - 1 (Basics)
Morphology and Anatomy of Vascular Plants
Progress in Botany pp Cite as. This contribution represents an extension of an earlier report covering the morphology and anatomy of the stem of flowering plants Dickison As such, I have found it convenient to organize recent research under many of the same topic headings that were recognized previously. This chapter is different from my first contribution, in that selected literature devoted to root organization and structure is also summarized briefly. As before, this is not intended as an exhaustive literature review but a selection of current research that represents an overview on the progress made in the field of stem and root morphology and anatomy during the past few years. Also, as before, literature dealing with fossil plants, tissue culture, the phloem, the periderm, and regional, purely descriptive, or applied wood anatomy is not treated. The wide range of topics reviewed in this chapter, ranging from considerations of the cell theory, patterns of differentiation, evolution, and organismal morphology and computer modeling, reflect the current diversity of interests and research progress within the broadly based field of structural botany.
Plant morphology or phytomorphology is the study of the physical form and external structure of plants. Plant morphology "represents a study of the development, form, and structure of plants, and, by implication, an attempt to interpret these on the basis of similarity of plan and origin". First of all, morphology is comparative , meaning that the morphologist examines structures in many different plants of the same or different species, then draws comparisons and formulates ideas about similarities. When structures in different species are believed to exist and develop as a result of common, inherited genetic pathways, those structures are termed homologous. For example, the leaves of pine , oak , and cabbage all look very different, but share certain basic structures and arrangement of parts.
Plant anatomy or phytotomy is the general term for the study of the internal structure of plants. Originally it included plant morphology , the description of the physical form and external structure of plants, but since the midth century plant anatomy has been considered a separate field referring only to internal plant structure. Some studies of plant anatomy use a systems approach, organized on the basis of the plant's activities, such as nutrient transport, flowering, pollination, embryogenesis or seed development.
The study of various external features of the organism is knownas morphology. The angiosperms are characterized by presence of roots, stems, leaves, flowers and fruits. The Root: The root is underground part of the plant and develops from elongation of radicle of the embryo. Various types of root. Regions of the root: 1. Some of the epidermal cells o thi read-like root hairs for absorption of water and minerals.