All types of coconut trees and palm trees belong to the same tropical climate. These have strong affinities with cycads family (cycas trees) and same family (palm family – Arecaceae). However, not all the palm trees produce coconuts. You need to know some growth stages of coconut (Cocos nucifera) before know how to grow coconut…
Kingdom Plantae Division Gnetophyta Class Gnetopsida Order Gnetales Family Gnetaceae Genus Gnetum History and Origin of Gnetophyta / Gnetales The fossil history of Gnetophyta or Gnetales is poorly known but Gnetales pollen occurs abundantly in Early Cretaceous sediments. In the Yixian Formation, remnants of Gnetales are relatively common and several taxa have been described. Pollen…
Origin of Cycadofilicales The Cycadofilicales or Pteridosperms are popularly known as ‘seed ferns.’ This group of Gymnosperms includes trees or small plants bearing fern-like foliage. They flourished greatly in the Carboniferous period, also known as the ‘Age of Ferns.’ The plants first appeared in the Devonian, became very prominent in the Carboniferous, but remained widespread…
Heterospory and seed habit Heterosporous plants produce two sets of specialized spores: megaspores (haploid female spores) and microspores (haploid male spores). Heterospory has evolved independently in several lineages. While, Homospory is the production of same type of spores. Scientists believe that heterospory is the precursor of seed reproduction. This is known as seed habit. The…
Introduction to the Gondwana Flora Gondwana flora is a collection of continents including Australia, Antarctica, Africa, South America, and India (Fig 1). This supercontinent was once a unity and finally broke up during the Mesozoic era. The above-mentioned masses of land share common stratigraphic features like fossils and sediments as there was easy and free…
Coconut trees are scientifically known as “Cocos nucifera”. Types of coconut trees are famous for their versatility, diversity, and abundance. The name “coconut” comes from Portuguese where coco means head or skull, and nut is a fruit with a hard shell. Coconut is a national tree of the Maldives. 5 Prominent Facts about Coconuts This…
Introduction to Binomial Nomenclature The word nomenclature is derived from two latten words i.e “nomen” which means name “Clare” which means to call, so it means to call by name. In biology, each group of organisms, be it plants or animals, or microorganisms is already classified under special divisions, according to their similarities and features….
What do you mean by Seed Recruitment? A seed is actually a miniature plant (a plant house). It is capable to grow and produce a new plant. Seed recruitment is the ability of a seed to grow and establish itself as a seedling. A seed is the ripened ovule and it stores food. This reserve…
Introduction to the Boundaries of an Ecosystem: This unit makes the ecosystem a specific entity (system). Boundaries of ecosystems are features of any entity. The ecological boundaries or boundaries of an ecosystem are the “outer envelope of an ecological entity such as individual, species, population, community or an ecosystem”. Cadenasso (2003) called them “the zone…
Life History Pattern The life history pattern of an organism is “the pattern of its survival and reproduction events during its life”. The traits that are studied in life history pattern includes morphological features like biomass, growth rate, size, phonological events, age at maturity, and reproductive features like fecundity (ability to produce new offspring), schedule…
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