Morphology and flowering phenology of Humboldtia decurrens Bedd. Ex Oliver (Fabaceae) Jayalakshmi.M, Division of Conservation Biology, JNTBGRI, Palode, Trivandrum Morphology and flowering phenology of Humboldtia decurrens Bedd. Ex Oliver (Fabaceae) Jayalakshmi.M, Division of Conservation Biology, JNTBGRI, Palode, Trivandrum Methodology Field survey was conducted. Viable populations of candidate species was located in the Western Ghats. Phenology was noted with special reference to flowering and fruiting. Detailed morphology was analyzed. Methodology Field survey was conducted. Viable populations of candidate species was located in the Western Ghats. Phenology was noted with special reference to flowering and fruiting. Detailed morphology was analyzed. Key spotlight:  Humboldtia decurrens is an endemic species of legume (Fabaceae).  Candidate species is found only in India in the southern part of the Western Ghats, extending from Anamalai Hills to the Travancore range.  Population seen among the evergreen forest vicinities of Shanghili, Sasthanada and Ponmudi of Kulathupuzha range of Shendurney Wild life sanctuary.  Lies between altitudes of m asl.  The genus Humboldtia represents 9 species in Kerala. Key spotlight:  Humboldtia decurrens is an endemic species of legume (Fabaceae).  Candidate species is found only in India in the southern part of the Western Ghats, extending from Anamalai Hills to the Travancore range.  Population seen among the evergreen forest vicinities of Shanghili, Sasthanada and Ponmudi of Kulathupuzha range of Shendurney Wild life sanctuary.  Lies between altitudes of m asl.  The genus Humboldtia represents 9 species in Kerala. Discussion: Morphology  A tree species of m high, with prominent bark and lenticels.  An inflorescence consists of flowers in cauliflorus racemes.  Flowers are bisexual, pink or white coloured, mm long.  Branches are pubescent when young and glabrous at maturity.  Leaves paripinnate alternate with lateral stipules and decurrently winged.  Fruit is a pod with dark brown colour and thick suture  Seeds are glaboures, thick and flat. Discussion: Morphology  A tree species of m high, with prominent bark and lenticels.  An inflorescence consists of flowers in cauliflorus racemes.  Flowers are bisexual, pink or white coloured, mm long.  Branches are pubescent when young and glabrous at maturity.  Leaves paripinnate alternate with lateral stipules and decurrently winged.  Fruit is a pod with dark brown colour and thick suture  Seeds are glaboures, thick and flat. SitesNovDecJanFebMarAprMayJuneJuly Sasthanada Ponmudi Phenogram Floral morphology Highlighted species: Humboldtia decurrens Introduction  Reproductive biology is an important aspect for mass propagation, multiplication, hybridization and conservation of endangered and threatened plants.  Understanding the biology of the threatened plants is important for habitat management and conservation.  Discussed area covers flowering phenology and floral morphology. Introduction  Reproductive biology is an important aspect for mass propagation, multiplication, hybridization and conservation of endangered and threatened plants.  Understanding the biology of the threatened plants is important for habitat management and conservation.  Discussed area covers flowering phenology and floral morphology. Discussion : Phenology  Phenological cyclicity commences from November till June.  The candidate species cannot afford heavy monsoon conditions.  Bud initiation starts during November but may vary according to monsoon climatic conditions.  Flowering starts in the month of December and reaches its peak during January to March and gradually decreases.  Fruit initiation begins during May and by June onwards seed formation occurs. Discussion : Phenology  Phenological cyclicity commences from November till June.  The candidate species cannot afford heavy monsoon conditions.  Bud initiation starts during November but may vary according to monsoon climatic conditions.  Flowering starts in the month of December and reaches its peak during January to March and gradually decreases.  Fruit initiation begins during May and by June onwards seed formation occurs. Conclusion:  The proposed study will help to evolve suitable strategies to protect the RET plants from untimely extinction.  Hence the results of the present study will serve as an important model system for achieving the conservation of threatened plants which are at present on the road to extinction due to various factors. Conclusion:  The proposed study will help to evolve suitable strategies to protect the RET plants from untimely extinction.  Hence the results of the present study will serve as an important model system for achieving the conservation of threatened plants which are at present on the road to extinction due to various factors. 1.Bud initiation 2.Initiation of flowering 3.Peak period of flowering 4.End of flowering 5.Fruit initiation 6.Seed formation