Biologica Collection

Mitosis, LM
Mitosis. Light micrograph of onion (Allium cepa) root tip cells undergoing mitosis (nuclear division). Magnification: x600 when printed at 10 centimetres wide

Human head louse, LM
Human head louse, Light microraph (LM) 0f Pediculus humanus capitis. P. humanus is divided into two subspecies; the head louse P. humanus capitis and the body louse P. humanus corporis

Obelia medusa, LM
Obelia hydrozoan medusa. Light micrograph (LM) of a medusa (young polyp) from the Obelia geniculata hydroid. The circular shallow semi-bell has solid tentacles on the rim

Flower bud, LM
Flower bud. Light microscope image (LM) of a section of a flower bud. The small yellow pollen grains are visible in the anthers, the male part of the flower

Human fleas, LM
Human fleas. Light micrograph (LM) of a male (left) and female human flea (Pulex irratans). Fleas are wingless and flattened from side to side, which makes them difficult to dislodge in hair

Mushroom gill, LM
Mushroom gills. High power light micrograph (LM) of a section through the gills of a mushroom, Agaricus sp. (formerly Psalliota sp.)

Xylem, LM
Xylem tissue. Light micrograph (LM) of a section through sunflower(helianthus annuus) tissue showing spiral tracheids, a type of xylem

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