Tse Tsun Yu

Chaenomeles thibetica is a species of flowering plant in the family Rosaceae. It is a tree or shrub, usually thorny, 1.5-3.0 m tall. It is native to Tibet and south-central China, and grows among shrubs in mountain valleys and on slopes. It has showy pink flowers in summer, and fruits from late summer to early autumn.

Sorbus commixta, the Japanese rowan, is a species of flowering plant in the family Rosaceae, native to central and eastern China, Korea, Japan, and Sakhalin (in the Russian Far East).

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Pyrus xerophila is a species of flowering plant in the genus Pyrus found in China. It is a probable hybrid species resulting from crosses between Pyrus pashia (Himalayan pear), Pyrus ussuriensis (Manchurian pear), and the western domestic pear, brought together by travelers along the Silk Road. It is used as rootstock for cultivated pears, and the fruit are collected and eaten by local people.

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Pyrus × sinkangensis, the Xinjiang pear, has been suspected to be of complex hybrid origin involving P. communis and Chinese white pears based on their morphological characteristics. Cultivars of P. × sinkangensis vary considerably, combining characteristics of both P. communis and Chinese white pears. Generally, the fruit shape of this species is much similar to P. communis, but with a long pedicel. Some cultivars of P. × sinkiangensis bear fruits with a persistent calyx and strong aroma, needing ripening before being edible, which is similar to P. communis. On the other hand, fruits of some

Pyrus hopeiensis is a species of wild pear in the family Rosaceae, native to north-central China. It is a naturally occurring hybrid of other Chinese Pyrus species, but is it unclear which ones are its parents. Its fruits are small and bitter, so it is not valued or conserved by locals.

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Sorbus wallichii is a species of plant in the family Rosaceae. It is found in China, India, and Nepal.

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Pyrus pseudopashia is a species of wild pear in the family Rosaceae, native to south-central China. As a crop wild relative of pears, it is in urgent need of conservation. Unfortunately all its accessions in the USDA-ARS National Pyrus Collection appear to have been misidentified or mislabeled.

Pyrus armeniacifolia, also known as the apricot-leaved pear, is a species of plant in the family Rosaceae. It is known from northern Xinjiang, where it is cultivated near Tacheng. The species was formally described by Tse Tsun Yu in 1963.

Photinia tushanensis is a species in the family Rosaceae of flowering plants.

Photinia lochengensis, also known as luo cheng shi nan (Chinese: 罗城石楠), is a species of plant in the family Rosaceae. It was described by Chinese botanist Te-Tsun Yu in 1963 and is native to China.

Photinia lanuginosa is a woody shrub species in the family Rosaceae. It is found only in the Hunan province of China.

Photinia anlungensis (Chinese: 安龙石楠) is a flower species in the family Rosaceae. It is found in China.

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