Comparative images except for Handroanthus and Tabebuia are given below:
Bignoniaceae week: Some information: This week's Family is BIGNONIACEAE We are currently observing a lot of flowering trees from this family. BIGNONIACEAE (Trumpet Creeper Family) Mostly tropical.Around 40 species in India mostly in western and southern India and some in Himalayas. Vegetative characters: Plant type trees,shrubs,woody climbers with tendrils or roots Stem in climbers:abnormal secondary growth. The Leaves :Opposite..rarely whorled or alternate More frequently pinnately compound terminal leaflet often modified to tendril. Stipules absent. Flowers and Inflorescence: Inflorescence:Dichasial cyme. Bracts and bracteoles present. Flowers: Showy, perfect, hermaphrodite, zygomorphic and hypogynous. Calyx: gamosepalous, Campanulate. Corolla :Gamopetalous, Bell or funnel shaped. 5 subequal lobes or bilabiate-Upper lip 2lobes; Lower lip 3lobes. Stamens : 4 didynamous 5th reduced to staminode.Epipetalous. Gynoecium :Bicarpellary and syncarpous with a superior ovarywhich is bilocular. Style terminal,simple,and stigma is two lipped. Nectar disc :cushion like or annular at the base of the ovary. Fruit : Two valved:loculicidal or septicidal capsule fleshy and indehiscent in Kigelia. Seeds : Compressed discoid. Pollination :Showy flowers nectar:-insect pollination. Seed dispersal :Seeds mostly winged:-Wind dispersal. Examples. Spathodia campanulata. Jacaranda mimosaefolia Kigellia pinnata Heterophragma Tabebuia Tecoma Pyrostegia Campsis Radermachera xylocarpa. Bignoniaceae week : Genera from Maharashtra: The Key for Bignoniaceae plants from Maharashtra As per BSI. (Only native ; cultivated not included) 1. Capsules winged on both sides ....Pajanelia 2. Capsules straight 4. Capsule velvety when young .... Heterophragma 4. Capsule not velvety 5. Leflets subsessile.... Radermachera 5. Leaflets petiolate.... Oroxylum PLANT TAXONOMY 2E By SHARMA (2011)- Details Species & genera pages of Bignoniaceae are now with images : 1 post by 1 author. This work was done by mainly me, ... & ... It is one of the big families in efi & the work started on 30.6.16 in a systematic way & was completed today only on 15.7.16. It involves inserting images on around 63 species pages (say around 600 images) & 33 genera pages. It also involved a lot of cleansing work, correctly identify some of the threads, putting them at their proper places, proper formatting of the species pages etc. I request our members to pl. take up one family each & try to make efloraofindia more constructive. We will be rendering what ever assistance is required by the members, in this matter. |
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