Pollination in Rafflesia
By flies/mites

Dispersal of seeds in Rafflesia
By Elephant

Smallest parasite
Arceuthobium minutissimum — It lives in stem of Pinus,

Rootless plants
Balanophora, Utricularia, Ceratophylium, Woiffia

article continued below

Plantless roots
plants have only roots to perform assimilation/growth/reproduction e.g. Sapria, Podostemum, Arceuthobium, Rafflesia

Scindapsus (family Araceae)
First terrestrial and then becomes epiphyte

Arachis hypogea (Ground nut)
Flowering occurs outside soil and after fertilization, ovaries go into soil where fruit formation occurs. It is called Geocarpy and is due to auxin action.

Plant with Broadest leaves
Victoria amazonica, (Amazon lily) leaf diameter 1.5 to 1.8 m

Plant with Longest leaf
Raphia vinifera (10—15 m)

Largest (Tallest) angiosperm
Eucalyptus regnans (114 m)

Tallest Gymnosperm
Sequoiadenron sempervirens ( = Sequoia gigantea) Douglosfir or Californian red wood tree

Largest flower
Rafflesia arnoldi ( 1 mt in dia, wt 7 kg) It is a root parasite on Tetrastigma roots

Largest inflorescence
Amorphophallus titanum (5.5 m) may be upto 12 m in Agave

Largest cotyledons
Capsella bursa pestoris (Shepherd’s purse)

Biggest fruit
Lodoicea maldivica (Double coconut wt 6 kg)

Largest diameter of a tree
Taxodium mucronatum (100—125 ft) Cestanea (167 feet)

Strongest wood used to keep mummies
Taxodium mucronatum (a gymnosperm)

Maximum number of chromosomes, plant
Ophioglossum reticulatum (2n = 1262)

Aulacantha Radiolarians (2n = 1600)

Smallest Archegonium is found in

Largest Archegonium is found in

Smallest gametophyte plant

Largest gametopilytic plant

Smallest pollen grain (2.5 t)

Largest pollen grain (250 j.t)

Biggest ovule
Cycas thourasii (7 cm in length)

Biggest sperm

Biggest egg

Largest seed
Lodoicea maidivica

Maximum number of chromosomes in Angiospérms
Poa litorosa 2n = 266

Smallest chromosome
An alga (0.025 rim)

Largest chromosome
Trillium govanianuin (30 jim)

Minimum number of chromosomes - Plant
Mucor, Porphyra (n = 2)

Minimum number of chromosomes - Animal
Ascaris (2n = 2)

Highest yielding cereal (grain) crop

Largest and widest cultivated crop
Rice (Oryza sativ)

Most advanced family
Compositae in dicots and gramineae in monocots

Billiards ball is made
from vegetable (Ivory) Palm (Phvtelephas microcarpa)

Lightest wood
Balsa (Ochrorna Pyramidale) sp. gr. 00444

Heaviest wood of world
Guaicum officinale ( sp. gr. I .49 wt. 93 lb/cubic feet

Fire proof wood (wood without resin)
Sequoia dendron

Maximum life span of a tree
Macrozamia (10000 years), Dracaena (8000 years)

Largest spreading tree
Ficus bengulensis

Largest leaf in diameter
Victoria arnazonica (V. regia) Amazon lily dia. (5—6 ft)

Longest leaf
Raphia vinifera 30—50 ft

Longest Botanic Garden of World
Royal Botanic Garden, Kew, England

First Plant taxonomist

World’s largest herbarium
Royal Botanic Garden, Kew, England

<< Previous

National flower of Pakistan
Jasmine (Jasminum)

National flower of London

National fruit of Pakistan and India
Mango (Mangifera indica)

A plant with only 2 leaves
Welwitschai mirabilis (a gymnosperm)

article continued below

Maiden Hair moss

Maiden hair fern
Adiantum capillusveneris

Grasses of sea

Children of sea

Forest of sea
Sea weeds (keips)

Joker of plant kingdom
Mycoplasma (PPLO)

Jewels of plant kingdom
Desmids (algae)

A gift of old world to new world
Wheat (Tritium)

A gift of new world to old world
Maize (Zea Mays)

Oldest cultivated crop
Barley (Hordeum vulgare)

Kalpvriksha (Tree of heaven)
Coconut palm (Cocos nucifera)

First land inhabiting plants

Red Sea
Due to blue green alga Trichondesmium erythreum

Most commonly seen fungi

Drosophila of plant kingdom
Neurospora crassa (red/pink Bread mould)

Guinea pig of microbiology and weed of laboratories
Aspergillus niger-green mold

Ovary rotates by 1800 in orchids

Major source of sugar in world
Beet roots

A device in which plants are grown in controlled conditions.

Tillandsw usneoids
Grows on telegraphic wires

Ermarki and Ranunculus lobatus
Plants recorded at higher altitude (21000 ft)

Smallest Angiosperm
Woiffia arrhiza inch long rootless.

Smallest flower
Woiffia microscopica (duck weed) 0. 1 mm

Smallest seed
Orchids (weighs 0.004 mg)

Smallest Gymnosperm
Zamina pygmea (25 cm tall)

Smallest acellular oganisms 
Mycoplasma galliseptium (0.3—0.5 μL)

Minimum number of chromosomes in Angiosperms and in an eukaryote
Haplopappus gracilis 2n = 4

Smallest Algae
Chalamydomonas (Green alga)

Largest Algae
Macrocvstis (Brown Alga — kelp) upto 60 mt.

Smallest fungi

Largest fungi
Ganoderma (A wood fungus) 1 mt. Fomes (56 x 37’)

Smallest bryophyte
Zoopsis, Ephemerum (Pigmy moss)

Largest bryophyte
Dawsonia, Fontinalis (brook moss)

Smallest pteridophyte

Largest pteridophyte
Treefem (Cyathaea) 20 mt. Aisphila (60 feet)

marine angiosperm
zostera, Thalassa

Walking fern
Adianturn caudatum

Sun fern

Aquatic ferns
Azolla, Marsilea, Salvinia

Betula utilis — Bark of this plant was used to write manuscript in ancient times.

Saprophytic angiosperms
Wullshcleigellia, Neottia (Bird’s nest orchid), Monotrapa (Indian pipe plant) Carallorhiza etc. absorb humus through fungi

Red Data Book
A book containing information of endangered plant and animals

Green Data Book
A book with list of rare plants growing in protected areas like gardens.

A stemless herb

Sulphur shower
Liberation of pollen grain in large amount by pine trees.

Killer weed
Parthenium hysterophorus (called- congress or carrot grass, belongs to family compositae)

Next >>


Our Sponsors