Definition: A young stage of certain plants, especially ferns, where it is in the gametophyte phase of its life cycle.

Example: The prothallium is essential for the reproduction of ferns as it produces gametes.

Definition: A small, flat structure that develops from a spore and contains reproductive organs. It is the early stage in the life cycle of ferns and some other plants.

Example: The prothallus of the fern is essential for reproduction as it produces gametes.

Definition: The green, thread-like structure that forms when spores of certain plants, like mosses and liverworts, begin to grow. This structure eventually develops into the main part of the plant that produces gametes.

Example: After the spores of the moss germinate, they develop into a protonema before growing into mature plants.

Definition: The initial type of phloem tissue that develops from the procambium, characterized by thin-walled cells and typically found in areas of active growth.

Example: During the early stages of plant development, protophloem plays a crucial role in transporting nutrients.

Definition: A type of plant structure that consists of a solid core made of xylem, which is surrounded by phloem.

Example: The protostele is an important feature in the vascular system of certain plants.

Definition: The initial type of xylem tissue that develops from the procambium in plants, characterized by narrow cells that have specific wall thickening patterns.

Example: During the early stages of plant development, protoxylem is crucial for water transport.

Definition: Describing a surface that has a white, powdery layer or coating, often seen on plants or fruits.

Example: The leaves of the plant were pruinose, giving them a unique appearance.

Definition: To make a face that shows displeasure or annoyance, often by tightening the lips and wrinkling the forehead.

Example: She pruned her face when she heard the bad news.

Definition: A type of dried fruit made from plums, often sweet and chewy, that can be eaten as a snack or used in cooking.

Example: I like to add a prune to my breakfast for extra fiber.

Definition: To cut away parts of a plant, especially dead or unwanted branches, to help it grow better or look nicer.

Example: In the spring, I like to prune the rose bushes to encourage new growth.

Definition: A thick and durable fabric made from wool, often used for making shoes, robes, and gowns.

Example: The tailor chose a fine prunella for the academic gowns to ensure they looked elegant and lasted long.

Definition: A type of French liqueur that has a brownish color and a flavor similar to sloe berries.

Example: She enjoyed a glass of prunelle after dinner.