|
''Parmelia'' is a genus of medium to large foliose lichens.〔Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ISBN 978-0-300-19500-2〕 The ends of the leaf-like lobes are often squarish-tipped.〔 The upper surface is pale bluish-gray to light brown in direct sunlight, with a network web-like ridges and depressions. The lower surface is black and has rhizenes anchoring it to the substrate.〔 It has a global distribution, extending from the Arctic〔Skult H (1985) A New Subspecies of ''Parmelia omphalodes'' Ascomycetes Described from the Arctic. Annales Botanici Fennici 22, 201-6.〕 to the Antarctic continent〔D.C. Lindsay (1973) Notes on Antarctic lichens: IV. The genera ''Cetraria'' Hoffm., ''Hypogymnia'' (Nyl.) Nyl., ''Menegazzia'' Massal, ''Parmelia'' Ach. and ''Platismatia'' Culb. et Culb. British Antarctic Survey Bulletin 36, 105-114.〕〔J. Hooker (1847) The Botany of the Antarctic voyage. Vol. 1. Flora Antarctica. Part 2 Botany of Fuegia, the Falklands, Kerguelens land, etc. Reeve Bros., London.〕 but concentrated in temperate regions. 125 species have been recorded on the Indian sub-continent.〔Awasthi D.D. (1976) Lichen genus ''Parmelia'' in India. I. Subgenera ''Parmelia'' and ''Amphigymnia''. Biological Memoirs (Lichenol. Ser.) 1: 155-229.〕 Depending on whether the circumscription of the genus is considered in the narrow sense (''sensu strico'') or the broad sense (''sensu lato''), there are between 50 to 1322 species world wide. It is a foliaceous lichen, resembling a leaf in shape. In recent years, the genus ''Parmelia'' has been divided into a number of smaller genera according to thallus morphology. ==Description and ecology== In general, ''Parmelia'' have a dark lower side with rhizines ('rootlets') which attach the lichen to its substrate. The upper side may be several colours - grey, yellow, brown - and may have reproductive organs on it. These may be apothecia (spore producing bodies), isidia or soralia (both vegetative structures). In between these two layers is the medulla which contains the algal component of the lichen. ''Permelia peralta'' is called Dagad (north India), patthar ke phool (Hindi), kallu hoovu (Kannada), kallu pachi (Telugu), kal pasi (Tamil). It is used as a spice that provides a distinct, unmistakable flavor. ''Parmelia'' lichens are food for the caterpillars of certain Lepidoptera, such as the bagworm moth ''Taleporia tubulosa''. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Parmelia (fungus)」の詳細全文を読む スポンサード リンク
|