Taphrina pruni Taphrina pruni Taphrina pruni is a fungal plant pathogen of blackthorn (Prunus spinosa) that causes the Pocket or bladder Plum gall, a chemically induced distortion of the fruit (sloes), producing swollen on one side, otherwise deformed and flattened fruit gall without a stone. The twigs on infected plants may also be deformed with small strap-shaped leaves. "T. pruni" produces a distinctive tongue-like growth, similar to other closely related species such as "Taphrina alni" on Alder ("Alnus glutinosa") and "Taphrina padi" on Bird Cherry "Prunus padus". The growth is the distorted fruit and not a fungus in its entirety. "T. pruni"
Prunus davidiana In China it is largely used as an ornamental, and the fruit is eaten, but not prized. In peach growing regions throughout the world it is used as a source of rootstocks. "Prunus" is the ancient Latin name for plum trees. "Davidiana" is named for L'Abbé Armand David (1826-1900), a missionary and collector of Chinese plants. Prunus davidiana Prunus davidiana (syn. Amygdalus davidiana, Persica davidiana, Prunus persica var. davidiana) is a species in the genus "Prunus" in the family Rosaceae. It is also known by the common names David's peach and Chinese wild peach. It is native to China, preferring