Dear Members Here is the Information on Apocynaceae Apocynaceae (The Oleander Family or Periwinkle Family or Dogbane family)
1. Usually twining shrubs, lianas, rarely erect small trees, rarely subshrubs or herbs. Plant with latex. 2. Bicollateral vascular bundles in stem 3. Leaves simple, opposite, rarely whorled or alternate, exstipulate 4. Inflorescences cymose, terminal or axillary, sometimes corymbose. Bract and bracteoles present 5. Flowers regular bisexual, generally pentamerous rarely tetramerous, sometime with corona 6. Calyx 5, rarely 4, with basal glands, fused but divided almost to the base 7. Corolla 5, rarely 4, lobed, salverform or funnel shaped twisted or rarely valvate aestivation. The throat or interior of the tube often hairy or other scaly outgrowths (Corona) 8. Stamens 5 or rarely 4, epipetalous, free or filaments rarely united, short; anthers mostly arrow shaped, usually connate around the stigma and apparently adnate to it, ring-like often glandular disc present 9. Gynoecium 2 Carpels, free below and united by styles only or completely fused. When Apocarpous each ovary is one celled with marginal placentation. In Syncarpous condition ovary may be one celled with parietal placentation or 2 celled with axile placentation.. Anatropous ovules. Style simple, thickned above into a dumb-bell shaped stigmatic head, ring of hairs below it 10. Fruit a dry or fleshy drupe, berry, follicle or capsules or two indehiscent mericarps.. Seeds often hairy or winged. *Plant parts of Some members of this Plant Family are POISONOUS* * * *Full key of the family can be downloaded from the link below* http://hua.huh.harvard.edu/china/mss/volume16/Apocynaceae.published.pdf *Some Internet Links on the family* *http://www.botany.hawaii.edu/faculty/carr/apocyn.htm* * * *http://delta-intkey.com/angio/www/apocynac.htm* * * * http://www.cieer.org/bot461/query/details.php?family=Apocynaceae&field=family * * * *http://www.desert-tropicals.com/Plants/Apocynaceae/Apocynaceae.html* * * *http://botany.csdl.tamu.edu/FLORA/imaxxapo.htm* * * *http://www.mozambiqueflora.com/speciesdata/family.php?family_id=15* * * *http://www.flickr.com/groups/apocynaceae/* * * * http://www.plantsystematics.org/cgi-bin/dol/dol_terminal.pl?family=Apocynaceae * * * *http://www.hear.org/starr/images/family/?q=apocynaceae&o=plants* * * *http://www.greenculturesg.com/articles/sep06/sep06_apocynaceae.htm* Reference of the members of family appeared on Efloraindia earlier will appear in this thread soon possibly by the today evening. -- Regards Dr Balkar Singh Head, Deptt. of Botany and Biotechnology Arya P G College, Panipat Haryana-132103 09416262964
