The name _Cydonia_ is derived from the name of the Greek city Cydon, now Canea, of Crete. The Cydonian apple of the Greeks was emblematic of fortune, love and fertility, and was dedicated to the goddess Aphrodite (Venus). It is a question whether Crete was the original home of the quince. Some authorities maintain that it found its way into Greece from upper Asia, Persia, or India. Wherever its first home may have been this plant was known in Greece 700 years B. C. From Greece the tree was introduced into Italy and Spain, from which countries it finally spread over central Europe. Charlemagne, Karl der Grosse--812, was largely instrumental in spreading the quince in Germany.
The ancient Greeks made extensive medicinal use of the fruit. On account of its astringency it has been used in dysentery, hemorrhage, and other conditions requiring an astringent substance. At present it is little used, the seeds excepted.
The pulp is fibrous and tough; it is not edible in the raw state on account of its acrid, astringent taste. As a whole it is a discouraging and disagreeable fruit in spite of its beautiful yellow color and pleasantly aromatic odor. Mixed with apples it makes excellent pies and tarts. A marmalade is made from the pulp, also a delicious jelly. It is stated that the word marmalade is derived from _marmelo_, the Portuguese name for quince.
The seeds are extensively used on account of the mucilage of the outer surface (epidermal cells). A decoction commonly known as mucilage of quince seed is much used as a demulcent in certain diseases--in erysipelas, inflammatory conditions of the eyes and in other affections where mucilaginous applications are found useful. The Mohammedans of India value the seeds very highly as a restorative and demulcent tonic. European physicians have used them with much success in dysentery. The mucilage is also one of the substances used by hair-dressers under the name of _bandoline_.
Chemically the mucilage is simply a modification of cellulose. Pereira considered it a special chemical substance which he designated _cydonin_. The seed, about 20 per cent. of which is mucilage, will make a sticky emulsion with forty times its weight of water. As to its physical properties it closely resembles gum arabic and agar. There are, however, simple tests by means of which it is possible to distinguish them. The seeds rubbed or crushed emit an odor resembling almonds, due to the presence of hydrocyanic acid.