Endemic to Madagascar, the common name for this plant is traveler's palm. It's most striking characteristic is its huge, fan-like structure. The leaves of the traveler's palm can grow to 10 feet in length and, when mature, the tree will stand 30 to 60 feet in height.omments. Submit. The island nation of Madagascar, off the southeastern coast of Africa, contains 12,000 plant species, most of them endemic to the island. Ecosystems on the island include tropical moist forests, dry forests, wetlands and coral reefs.
Organs of the Immune System: The Spleen. Among organs that contribute to our immune response, there are two categories: primary lymphoid organs and secondary lymphoid organs. The spleen is a secondary lymphoid organ. Your spleen is found about halfway up your torso in the left abdominal cavity.
Cancer of the lymphatic system can be primary or secondary. Lymphoma refers to cancer that arises from lymphatic tissue. Lymphoid leukemias and lymphomas are now considered to be tumors of the same type of cell lineage. They are called leukemia when in the blood or marrow and lymphoma when in lymphatic tissue.