Despite the common names ringworm and dermatophyte, the disease is caused by a fungus, not a worm or plant. Trichophyton, Microsporum, and Epidermophyton are the most common genera that cause ringworm in humans. These organisms feed on keratin, the major structural component of hair, skin and nails.
Thuja occidentalis 'Nigra'. Naturally broad, pyramidal evergreen shrub displays deep green, scalelike needles arranged in flat sprays. New light green needles emerge in spring, deepening in color as they mature. Deep green color adds contrast to winter landscape.
What Causes Linea Nigra? Your skin, like the rest of your body, goes through some changes during pregnancy. It stretches to accommodate your growing belly and breasts, and it may change color. Most pregnant women notice darker patches of skin, especially women who already have dark hair or skin.