Each hydathodes has a mass of loosely arranged cells with large intercellular spaces called epithem. This epithem lies above a vein ending and is connected with external atmosphere through a pore in the epidermis, known as water stomata. The guard cells here are small and devoid of chloroplasts. The hydathodes are always in the open condition. The mechanism of stomata opening and closing is absent here.
Algae alkaloids Allelopathy arbuscules Aspergillus nidulans Bryophytes and Pteridophytes Celpholeuros Chemosynthesis Chemosynthesis vs Photosynthesis Citrus Canker Classification of alkaloids Dasa pushpam definition Mycorrhiza dicot stem Dicot Stem Anatomy dolipore parenthesome septal complex drug yielding plants ectendomycorrhiza Ectomycorrhiza edible vaccines Emblica officinalis endo mycorrhiza Endomycorrhiza Entomycorrhiza epithem essential oils functions of root Fungi golden rice guttation Gymnosperms Harting-net haustoria Heterocysts Heterospory and Seed habit Hydathodes Ingo Potrykus Lactarius Largest Flower lignins Lists of Essential oils Lycopodium medicinal plants mycorrhizal fungi Nitrogen fixing Oedogonium Parasexual cycle Parasexuality phenolics Photosynthesis plant based vaccines Primary metabolites Psilotum Pteridophytes Rafflesia arnoldi Resins root system Rusts Rusts and Smuts Salvinia leucophylla Scleroderma Secondary metabolite Secondary metabolites Smallest Flower Smuts Steps involved in Parasexual cycle steroids sterols stomata Stone wort tannins teliospore stag Terminalia bellirica Terminalia chebula the history of photosynthsis transgenic rice Triphala Tyloses Vaccination vaccine VAM Volatile oils Water net Water stomata Xanthomonas citri xylem vessels