Online Manual for the Forest Tree Seeds of Kerala

A Kerala Forest Department Funded Project


Dr. K Sudhakara
Professor & Head of the Department
Dept. of Silviculture & Agroforestry
College of Forestry, Kerala Agricultural University, Thrissur 680 656
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Scientific Name  Alstonia venenata R. Br.
Vernacular name  Analivegam, Thippili, Theeppala (Malayalam) (Sasidharan, 2004); Sinnappalai, Pazha munnipala (Tamil).
Common name 
Synonyms 
Family  Apocynaceae
Subfamily 
Origin 
Distribution  Distributed in the Western Ghats, Nilgiri and Palni hills, also in Orissa (Bose et al., 1998).
Description  A small tree, up to 6 m high, branches many, erect, with greyish brown bark, delicately rugose, bright yellow hard and woody root.
Flowering season  April to July.
Fruiting season 
Flowers  Flowers white, calyx glabrous, lobes ciliate, small, in terminal, subumbellate cymes or in racemes. Corolla with slender tube, about 2 cm long; petal lobes about 12 mm long; anthers at the mouth of tube (Bose et al., 1998).
Fruits  Fruit fusiform, stalked and beaked follicles, tapering at both ends. Follicles slender, terete, 8 to 10 cm long, wide at the middle region, tapering at both ends and with long beak (Bose et al., 1998).
Fruit type  Follicles.
Seeds  Seeds many, flattened with a tuft of hair at each end (Prajapati et al., 2003); wing-like margin all around or at both ends (Bose et al., 1998).
Seed length 
Seed width 
Seed thickness 
Seed weight 
Seed dispersal  By wind.
Seed Collection 
Transportation of seeds 
Seed processing 
Seed storage 
Viability period 
Seed emptiness 
Seed pre treatment 
Germination type  Epigeal.
Germination percentage 
Germination period 
Nursery technique 
Method of propagation  By seeds.
Vegetative propagation 
Pests 
Diseases 
Medicinal properties  The roots are used for the treatment of skin diseases, leprosy, cobra bite and other venomous bites. The fruits are useful in syphilis, insanity and epilepsy and a remedy for impure blood. The indole alkaloid venenatine exhibit antifungal activity against Fusarium udum, Alternaria brassicicola, Ustilago cynodontis and Aspergillus flavus (Singh et al., 2000; Singh et al., 1999).
Uses  Tree yields guttapercha-like concrete latex called Bresk or Dead Borneo; lupeol is its chief constituent (Bose et al., 1998).
Wood properties  Wood white, soft and even grained. Pores moderate sized, oval, ringed, scanty.
References  Get ...
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