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.
Direct Sowing. Foxglove seeds need light to germinate. The best way to plant foxglove seeds is by surface sowing them, which means simply scattering the seeds on top of the soil. Aim for a spacing of about 1 inch between seeds. You can thin them once they emerge to a spacing of 12 to 24 inches between plants to prevent overcrowding.