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Palmately compound leaf of hemp. A leaflet (occasionally called foliole) in botany is a leaf-like part of a compound leaf. [1] Though it resembles an entire leaf, a leaflet is not borne on a main plant stem or branch, as a leaf is, but rather on a petiole or a branch of the leaf. [2]
An illuminated manuscript is a book, usually religious in nature, that has been intricately decorated with paints, inks, and metal leaf such as gold and silver. This can include full page illustrations, intricate initials at the beginning of paragraphs and chapters, and embellishment to particularly important areas of text.
Frequently called a "book curse", these were placed in the book to deter theft. The ancient Chinese god Wei T'O is the patron god of libraries and books. Many examples of appeals to Wei T'O can be found in Chinese manuscripts dated five hundred or more years ago. [56] Wei T'O is especially invoked for the protection of books and libraries ...
An example of mold damage. Mold control and prevention is a conservation activity that is performed in libraries and archives to protect books, documents and other materials from deterioration caused by mold growth. Mold prevention consists of different methods, such as chemical treatments, careful environmental control, and manual cleaning ...
A loose leaf (also loose leaf paper, filler paper or refill paper) is a piece of paper of any kind that is not bound in place, or available on a continuous roll, and may be punched and organized as ring-bound (in a ring binder) or disc-bound. Loose leaf paper may be sold as free sheets, or made up into notepads, where perforations or glue allow ...
More generally than in describing tunics of bulbs etc., any leaf-sheath or protective bract remaining attached to the plant after the leaf has died may be called a tunica or tunic. [3] The testa or spermoderm of a seed is sometimes called the tunic, especially in older books. [3] In fungi, the peridium may be referred to as the tunica. [3]
These signal transduction pathways determine for example how quickly a plant will lose water during a drought period. Guard cells have become a model for single cell signaling. Using Arabidopsis thaliana, the investigation of signal processing in single guard cells has become open to the power of genetics. [29]
Spongy tissue is a type of tissue found both in plants and animals.. In plants, it is part of the mesophyll, where it forms a layer next to the palisade cells in the leaf.The spongy mesophyll's function is to allow for the interchange of gases (CO 2) that are needed for photosynthesis.