👉 Doloclanes are a type of biological structure that is unique among plants, primarily found in gymnosperms (coniferous trees). They are characterized by their large, cylindrical structures, which can range from several centimeters to hundreds of millimeters. These structures are composed of specialized cells called cell walls and have a characteristic shape resembling a cone or cylinder. The term "dolocane" comes from the Latin word "dolore," meaning pain or discomfort.