Cystopteris fragilis in the Western Himalayas
نویسندگان
چکیده
منابع مشابه
A New Pentaoxygenated Xanthone from the Fern Cystopteris fragilis
Pharmacological activity (e.g. antipsychotic ac tion [1]) and chemotaxonomic interest of xanthones may explain the increasing interest in these substances in recent years. It has been suggested [2] that Cystopteris fragilis complex is the most inter esting biosystematic problem in ferns. Xanthone analysis may be of interest in the study of relation ships of the taxa of this complex since pre...
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It is well corroborated that the earth is relentlessly bubbling inside since its birth and traversing continuously through a geological change. The source of this dynamism is the heat stored inside i.e. the geothermal energy, which is believed to be the product of mainly the decay of natural radio-isotopes in the crust and mantle, and in the core of earth. This heat exerts pressure towards the ...
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Ongoing climate warming has been demonstrated to impact the cryosphere in the Indian Himalayas, with substantial consequences for the risk of disasters, human well-being, and terrestrial ecosystems. Here, we present evidence that the warming observed in recent decades has been accompanied by increased snow avalanche frequency in the Western Indian Himalayas. Using dendrogeomorphic techniques, w...
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ژورنال
عنوان ژورنال: American Fern Journal
سال: 1976
ISSN: 0002-8444
DOI: 10.2307/1546924