Largest alga – Macrocystis
Longest marine alga- Macrocystis pyifera
Largest Tree fungus- Oxyporus nobilissimus
Largest bacterium- Beggiatoa mirabilis
Largest Bryophyte- Dawsonia
Largest moss- Fontinalis
Smallest moss- Ephemerum
Smallest Pteridophyte-Azolla
Largest fem- Alsophila excelsa
Smallest ferm- Hecistopteris pumila and Azolla caroliniana
Tallest Gymnosperm tree- Sequoia gigantea, Sequoia sempervirens
Smallest Gymnoseperm-Zamia pygmaea
Largest Ovule-Cycus circinalis
Tallest Angiosperm tree-Eucalyptus
Smallest Angiosperms-Wofffia
Largest Cactus-Cereus giganteus
Smallest parasite-Arceuthobium
Largest seed- Lodoicea
Smallest seed- Orchids
Largest leaf-Victoria regia
Largest inflorescence=Puya rainondii
Largest flower-Rafflesia arnoldii
Smallest flower-Wolffia
National Flower-Lotus
Largest fruit- Lodoicea maldivica
Heaviest wood-Guiacum officinale
Lighest wood-Ochroma lagopus
Largest cell-Ostric egg
Smallest cell like structure-Mycoplasma gellisepticum
Maximum number of Chromosomes-Ophioglossum 2n=1266
Minimum Number of Chromosomes-Hyplopappus gracilis 2n=4
Largest Chromosome Trillium
Smallest Chromosome-Algae
Father of Botony – Theofrastus
