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 murrayana rare that no one has seen its fruit since first being scientifically described. Prunus murrayana Prunus murrayana, called the Murray’s plum, is a critically endangered shrub native to Texas. It is found in the Edwards Plateau and the trans-Pecos regions of the state. "Prunus murrayana" is a thorny, deciduous shrub up to 5 meters (almost 17 feet) tall, forming clumps by means of sprouts formed at the base of the plant. Leaves are hairy on both surfaces, usually folding along the midrib. Flowers are white, usually appearing about the same time as the leaves. Fruits are red with white dots,