Classification of Gymnosperms by Sporne
There are many systems of classifications for Gymnosperms in the literature. In the previous post, we discussed the Chamberlain’s System of Classification of Gymnosperms. In […]
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Affinities of Gymnosperms with Pteridophytes and Angiosperms
Learning objectives: Evolutionary relationships and affinities of Gymnosperms with Pteridophytes and Angiosperms; Similarities and Differences between Pteridophytes and Gymnosperms; Similarities and Differences between Gymnosperms and […]
Hand Sectioning and Microtome Sectioning: Advantages and Limitations
Sectioning in biology refers to the process of cutting a sample of tissue or an organism into thin sections for examination under a microscope. The […]
Killing and Fixation (Fixatives in Histopathology)
Learning objectives: General account of Killing and Fixing of Plant Specimens for Anatomical and Histological Studies; Agents used for killing and fixation – Alcohol, Formalin, […]
Anomalous Secondary Growth in Beetroot Storage Roots
In many dicots, the root functions as a storage region. The secondary growth in these storage roots is usually anomalous type. Example: Secondary thickening in […]
Anatomy in Relation to Plant Taxonomy and Systematics
Plant anatomy, the study of the internal structure of plants, is crucial in understanding plant systematics or taxonomy. Plant anatomy provides important information about the […]
Anomalous Secondary Thickening in Mirabilis / Nyctanthes (Nyctaginaceae)
Mirabilis jalapa (4 O’clock plant) and Nyctanthes belongs to the family Nyctaginaceae. In the previous post we discussed the anomalous secondary thickening in Amaranthus / […]
Anomalous Secondary Thickening in Amaranthus and Achyranthes Stem
Anomalous secondary thickening in Amaranthus and Achyranthes occurs due to the abnormal activity of an abnormal cambium. Here, new cambial rings are formed from the […]
Anomalous Secondary Thickening in Aristolochia Stem
Aristolochia (Family: Aristolochiaceae) is a climber and the pattern of secondary thickening in the stem of Aristolochia helps its twining habitat. In Aristolochia, the cambium […]