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Int J Pharm Bio Sci 2015 Oct; 6(4): (B) 1204 - 1209

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Intrnational Jo*rnal o$ Pharma an" Bio Scincs ISS+

09,5-6299

BOP.T/ I/SIT I+ IT ISTI3T IO +OT./ST I+I

LALHRIATPUIA* AND RAMACHANDRA LAHA

Department of Botany, Mizoram University, Aizawl, Mizoram, India

ABSTRACT

Bryoflora of Mamit District, Mizoram has been assessed for the first time. In the present investigation, a totalof 65 taxa of Bryophytes distributed under 5 genera and !6 families have been recorded. "f these, themosses are represented by !# species of $% genera and families, 'hile (iver'orts are represented by $6species of $ genera and &% families. )orn'orts are represented by $ species of $ genus and & family. *hepresent study reveals that Bryaceae, Dicranaceae, +rullaniaceae, Meteoriaceae and olytrichaceae aredominant families in the study area.

KEYWORDS: Bryoflora, Mamit, Mizoram, Northeast, India.

*Corresponding author

LALHRIATPUIA 'artmnt o$ Botan i7oram 8nirsit i7a#l i7oram In"ia

/mail: hrt'696mail%com Ph%


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INTRODUCTION

Bryophytes are spore-bearing nonvascular plants anduniue among land plants in having relatively largephotosynthetic and free living haploid gametophytes,unbranched diploid sporophytes that remain attached to

the maternal gametophyte throughout their life span, thusit is heteromorphic in their life cycle&. Bryophytes gro' inpractically every /ind of habitat 'ith the exception of hotsprings and oceans. *hey flourish particularly 'ell inmoist and humid forests, commonly gro' clumpedtogether in mats or cushions on trees, logs, roc/s, andsoil, and may be submerged in or floating on 'ater.Bryophyte communities are /no'n for the fact that theirspecies composition and richness is strongly influencedby external factors, especially 'ater, light andtemperature 'hich ma/es them efficient bioindicators$,!.*herefore, they constitute an important component oftropical rain forests, 'hich provide microhabitats 'ith

diverse substrates and moderate luminosity, importantfactors for the establishment of members of this plantgroup0,5,6. Bryophytes play a significant role in theecosystem in a variety of 'ays such as biologicalindicator of air pollution, excellent indicators of climatechange1 and as a model system for research1 somespecies are used in herbal medicine1 invaluable in theconstruction of moss gardens1 fe' species plays a 2/eystone3 role in mineral cycling and regulation ofmicroclimate in the forests canopy1 they provide food andhabitat for a host of invertebrates#. Despite their smallsize, they comprise ma4or components of thebiomass and photosynthetic production in forestecosystems%. ccording to the most recent

classification the three groups of bryophytesliver'orts, mosses and horn'orts7 are recognized asthree phyla1 Bryophyta mosses7, Marchantiophytaliver'orts7 and nthocerotophyta horn'orts7, basedon both morphological and molecular data8. Bryophytesare the second largest group of plants, 'ith about $5,

species 'orld'ide

&

. India reports total $0%8 taxa ofbryophytes from India, comprising %6 species in !55genera of mosses, 6#% species in &$& genera ofliver'orts and $5 species in six genera of horn'orts&&.In India, bryophyte diversity of these regions have beenexplored such as 9astern )imalayas, :estern)imalayas, ;ilgiri and alni hills olasib and iza'l districts. *hetemperature ranges from 8?= to $0?= and from $0?= to!6?= during 'inter and summer respectively. *he Districtreceives abundant rainfall 'ith an average annual rainfallof $$ cm. *he region falls 'ithin the sub-tropical rainforest region, the vegetation of the district are *ropical'et 9vergreen @egetation, *ropical


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MATERIALS AND METHODS


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Table

List of the Bryophytes species with family, habitat and altitude of occurrence in Mamit District, Mizoram

l.No. Name of the pe!ies Family "abitat #ltitude

&. Aneura pinguis (.7 Dumort. neuraceae Coc/ 05m$. Anomobryum filiforme ssp.concinnatum


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buildings, destruction of the forest and expansion ofagricultural land in this region. *he changes in themicrohabitat of bryophytes may seriously affect thespecies composition very rapidly and thus upset the

ecological balance. >eeping in vie' the immenseecological importance of this lo'er group of plantssuitable conservation measures should be ta/en topreserve the bryoflora of this region.

REFERENCES

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