Diagram showing various forms of secreting glands. Labels: 1, general plan of a secreating membrane; a, epithelial cells; b, basement membrane; c, connective tissue in which lie the blood-vessels (d); 2-7, simple and compound tubular and saccular glands; d, duct.

Diagram Showing Various Forms of Secreting Glands

Diagram showing various forms of secreting glands. Labels: 1, general plan of a secreating membrane;…

"Glands of Sundew magnified. External aspect with drop of secretion." — The Encyclopedia Britannica, 1893

Sundew

"Glands of Sundew magnified. External aspect with drop of secretion." — The Encyclopedia Britannica,…