Pleural Cavity is the body cavity that surrounds the right and left lung. The pleura is a serous membrane which folds back to form a two-layered, membrane structure. The thin â¦ space between the two pleural layers is known as the pleural cavity; it normally contains a small amount of pleural fluid. The outer pleura parietal pleura is attached to the chest wall.
Germinating the Seeds. To germinate staghorn sumac seeds place them in a warm room away from direct sunlight. Regularly mist the soil in the pot with a spray bottle to keep it moist. After germination, remove the plastic wrap and position the pot in a sunny window so the seedlings can grow.
Arnica montana. Direct sow seed as soon as it is ripe in the fall. Sow stored seed in early spring in cold frame, or cold moist stratify for 2-4 weeks before starting indoors 4-6 weeks before last frost. If it does not germinate in at 65-75ËF in 3-4 weeks, return to cool stratification for 2 weeks.