Indian Botanic Research Articles

Indian Botanic Garden - Important Non-Herbacious Phanerogams of Indian Botanic Garden together with Seasonal Ornamental Annuals under Cultivation

Indian Botanic Garden, Calcutta is spread over to 310 acres of land and consists of 25 divisions. The important species grown in different divisions have been presented in this paper alphabetically arranged, along with seasonal ornamentals.

Polypores that Decay Trees of Indian Botanic Garden

Fifty two species of wood-rotting polyporoid hymenomycetes were found associated with decay of trees of Indian Botanic Garden. Most of them caused white rots. Oxyporus latemarginata (Dur. & Mont.) Donk, Phellinus glaucescems (Petch )Ryv. and Rigidoporus vitreus (Fr.) Donk have not been reported earlier from India. Coriolopsis luzonensis (Murr.) Sharma is a new combination proposed. Casuarina equisetifolia Forst. is the most frequent host.

Pollen Morphology of Aquatic Flora of the Indian Botanic Garden, Howrah, West Bengal

The Paper Presents Pollen Morphological Study of the Aquatic Flora Growing in the Different Pools and Lakes of the Indian Botanic Garden, Shibpur, Howrah, West Bengal. in the Present Study 64 Species, Comprising 4 Pteridophytes, 23 Dicotyledons and 37 Monocotyledons have been Described with Special Notes And/or Remarks, if Any. This Study will be Helpful for Correct Taxonomic Identification of the Aquatic Plants as well as Correlation of the Lake Sediments.

Pteridophytes of Indian Botanic Garden, Howrah

Pteridophytes of Indian Botanic Garden, Howrah

Bio-Aquatic Nature of Indian Botanic Garden Lakes

Nine large lakes out of twenty five occurring in the Indian Botanic Garden, Howrah, have been studied for bio-aquatic nature. The Characteristics of stational parameters are discussed. It is held that the disposition so the lakes vis-a-vis temporal changes and the human interferences are responsible factors affecting Proper conservation of these water bodies.

A Green Repository Matures at Kepong : the forest Research Institute of Malaysia

An overview of the history of establishment, characteristics and functions of the grounds of the Forest Research Institute of Malaysia at Kepong is presented. The Institute was functionally established at its Kepong premises in 1926, when the first forest plantations there were begun, and the arboretum was established in 1929 through the efforts of F. W. Foxworthy and J. G. Watson. Today, the premises at Kepong occupy a total area of some 600 hectares, including the natural forest of Bukit Lagong, the plantation forests and the special livmg-plant collections. The planted forests are a prime example of tropical reforestation using hardwood dipterocarp species. These plantations and the arboreta have been built up through a close association with research related-to forestry, plant biology and taxonomy, and the grounds are an important facility for conservation, education and recreation. Taken in toto. the entire premises are effective in conservation through the building up of viable, breeding populations of many plant species, and are significant as a sanctuary for animal life.Unlike the Indian Botanic Garden, which by 1987 woidd have celebrated two hundred years since establishment, the Kepong premises of the Forest Research Institute of Malaysia will see its bicentenary only in the year 2126. It seems a long way to go, and indeed it is. But botanic gardens and arboreta do not grow merely with age; they will only develop with continual maintenance, acquisition and renewal through time. It is, therefore, most pleasing to realize that the Indian Botanic Garden has been sustained for two centuries, and the Kepong premises is maturing after sity years, as scientific livmg-plant repositories.The living collections on the Kepong premises of the Forest Research Institute of Malaysia (FRIM) have not normally been equated to a botanical garden in its typical sense because of the general emphasis on arboriculture and species of interest to tree-oriented forestry. Although they are as purposeful and functional as any botanical garden in the tropics, the grounds of the FRIM are unique in several aspects and are well-recognised by tropical plant scientists as one of the major repositories for living plants in the region.

Notes on Distribution and Biology of <i>Ceratopteris thalictroides</i> (L.) Brongn. (Parkeriaceae) Wlth Special Reference to Spore Production and Fertility under Pollution Stress

Present paper deals with 8 samples of water fern-Ceratopteris thalictroides (L.) Brongn. growing in the fresh water lakes of Indian Botanic Garden, Shibpur, Howrah and in nearby areas inundated by different factory wastes containing hydrocarbons, saponins, mercury residues and various heavy metals in addition to acidic and alkaline residues.Biology of the water fern including spore production, fertility, germination etc. have been studied under control (IBG lakes) and field stress conditions. It is observed that environmental and pollution stress cause severe alteration in the life cycle of this aquatic fern affecting spore production rate, fertility percentage and germination. It is also observed that presence of humus in the soil, salinity and pH of the water also affect the biology and phenotypic plasticity of this water fern. Present observation will be very much helpful in further studies on the biology of the aquatic plants.

The Great Banyan Tree

The Great Banyan Tree at the Indian Botanic Garden, Howrah is a source of attraction to all visitors. In this paper its history, importance, growth, mythology, protection and training of prop roots have been discussed. Some colour photos have been given to depict its various details.

Bamboos of the lndian Botanic Garden

A census of bamboos under cultivation at Indian Botanic Garden has been made.inforrnation on their introduction, cultivation and their availability in various parts of this garden is provided. Taxonomic account of each taxon together with usefulness of bamboos are furnished.

Overview of Ecological Studies on Conservation and Management of Plant Diversity in Indian Botanic Garden, Howrah

Ecological factors of Edapho-Microbial Nature, Bio-aquatic nature, Chemical nature of Hooghly river waters and their impact on the eco-pedon system of IBG have been analysed and are presented here with the objective to aid in scientific management of this unique Botanic Garden. Emphasis is laid on the seasonal variations in the factors governing the ecology of the garden. The paper is concluded with some suggestions for upkeep of the balanced ecology of Indian Botanic Garden (IBG).

Observations on the Edapho-Microbial Nature of Indian Botanic Garden, Howrah

The edapmo-microbial nature of Indian Botanic Garden was assessed. The activities of Azotobacter were used as an indicator to determine the suitability of edaphic conditions for plant introduction. It was observed that the Hooghly River (Ganga) front had comparatively higher clay content and organic carbon. The water holding capacity, cation exchange ability, pH, porosity and available nutrients such as nitrogen and phosphorus and azotobacter activities of the river site were comparatively superior to the other sites. The middle stretch of the garden area was observed to be more saline than other two stretches. The area towards humaq, settlements was exposed to severe anthropogenic interference. Consequently, the microbial population was diminutive here with relatively inferior edaphic characteristics.

A Selective Catalogue of the Publications on the Indian Botanic Garden

No Abstract.

Observation on Double Coconut in the Indian Botanic Garden

No Abstract.

Ecological Notes on <i>Cymbidium aloifolium</i> Sw. (Orchidaceae) in the Indian Botanic Garden, Howrah

Notes of ecological interest on Cymbidium aloifolium Sw. and its fourteen hosts including a Palm and a Gymnosperm in the Indian Botanic Garden, Howrah, has been observed and recorded in a tabulated form, along with a photograph.

Effect of Low Temperatures on the Seed Germination of an Exotic Temperate Species of the Genus <i>Hibiscus</i> L. and its Introduction at the Indian Botanic Garden

No Abstract.

Observations on Two 'Threatened Arecoid Palms of Nicobar Islands Cultivated at the Indian Botanic Garden, Howrah

No Abstract.

<I>Phyllanthus tenellus</I> Roxb. (Euphorbiaceae) - an Adventive in Indian Flora and its Typification

Phyllanthus tenellus Roxb., a native of Mascarene Islands, though originally described from a population raised in the Indian Botanic Garden, is reported as an adventive from Salem district in Tamilnadu and from Greater Bombay in Maharashtra. It is also being lectotypified with Roxburgh's unpublished Flora Indica drawings.

A Census of Palms Cultivated in the Indian Botanic Garden, Howrah

This paper deals with the palms cultivated in the Indian Botanic Garden, Howrah. Altogether 109 species of palms have been enumerated from this garden of both economic and ornamental species. The accompanying map of the Garden will help in locating the different species of palms.

Phyto-Chemical Screening of some Plants of Indian Botanic Garden

This is a report of preliminary screening of 120 samples representing 103 different species, wherein 27, 14, 85, 30 and 45 samples gave positive tests for alkaloids, saponins, steroid/triterpenoids, coumarins and flavonoids respectively. Only Solidago canadensis Linn, responded to Legal test and Cassia fistula Linn, contain anthraquinone derivative.

Chemical Nature of Hooghly (Ganga) River Water and an Assessment of their Impact on the Eco-Pedon System of Indian Botanic Garden, Howrah

The eco-pedon system of the protected premises of the Indian Botanic Garden, located along the river Hooghly in the lower gangetic plain in the district of Howrah, has been studied with a conservational point of view to understand the indiscernible phenomenon of the impact of the river water on the garden eco-pedo-chemical characteristics often submerged due to occasional tidal inundations of the river during the monsoons.It is experimentally revealed that a chemically dilute river water siphons off the mineral riches of the submerged soil system during flash floods. The intensity of mineral erosion is noted to be directly proportional to the periodic length of submergence of the soil system notwithstanding its natural revamping capacity.