(1915)  Page(s) 29-30.  
 
[After R. Hugonis] the next species to flower here, R. Ecae, is a very spiny shrub with small leaves and pale yellow flowers not more than an inch in diameter. It is a native of Afghanistan, where it is common on dry mountain ridges, and of Samarkand and although of some botanical interest it has little to recommend it as a garden plant in this region. In 1820 an English botanist found in a collection of Chinese drawings in London the picture of a double yellow Rose to which he gave the name of R. xanthina, and many years later the single-flowered form of this Rose was found growing wild in Mongolia by the French missionary David. English botanists have usually confused the Chinese Rose with R. ecae and it apparently had not been cultivated in the United States or Europe until 1908 when the Arboretum received from the Department of Agriculture seeds of this Rose gathered in China by its collector, Mr. F.N. Meyer. Both the single and double-flowered forms were raised from this seed and have flowered in the Arboretum this year. The flowers are larger than those of R. Ecae and bright clear yellow. These Roses appear to be perfectly at home in the Arboretum, but it is too soon to speak of their value in North American gardens. The single and the double-flowered varieties are much cultivated in the gardens of Peking.

(1915)  Page(s) 29-30.  
 
Among wild Roses with yellow flowers are a few hardy plants which are not often seen in American gardens....Of the four species which are hardy here [at the Arnold Arboretum of Harvard University] Rosa Hugonis from western China is the earliest to bloom...In the Arboretum the flowers are larger than those of the other yellow-flowered species and the plants are more vigorous and flower more freely. Judging by the plants in the Arboretum which have been growing here for several years, this will be a valuable garden plant for the northern states. The next species to flower here...R. Ecae...

(1915)  Page(s) 29-30.  
 
[After R. Hugonis] the next species to flower here, R. Ecae, is a very spiny shrub with small leaves and pale yellow flowers not more than an inch in diameter. It is a native of Afghanistan, where it is common on dry mountain ridges, and of Samarkand and although of some botanical interest it has little to recommend it as a garden plant in this region. In 1820 an English botanist found in a collection of Chinese drawings in London the picture of a double yellow Rose to which he gave the name of R. xanthina, and many years later the single-flowered form of this Rose was found growing wild in Mongolia by the French missionary David. English botanists have usually confused the Chinese Rose with R. ecae and it apparently had not been cultivated in the United States or Europe until 1908 when the Arboretum received from the Department of Agriculture seeds of this Rose gathered in China by its collector, Mr. F.N. Meyer. Both the single and double-flowered forms were raised from this seed and have flowered in the Arboretum this year. The flowers are larger than those of R. Ecae and bright clear yellow. These roses appear to be perfectly at home in the Arboretum, but it is too soon to speak of their value in North American gardens. The single and the double-flowered varieties are much cultivated in the gardens of Peking.

(1915)  Page(s) 29-30.  
 
Among wild Roses with yellow flowers are a few hardy plants which are not often seen in American gardens. There are five species of single yellow-flowered Roses which are found only in the region from the Caucasus to the Himalyas, in central Asia and in western and northern China. Among all the Roses of North American, Europe..., Siberia, and Japan, there is not a wild yellow-flowered Rose except some varieties of the Scotch Rose, R. spinossisima....In 1820 an English botanist found in a collection of Chinese drawings in London the picture of a double yellow Rose to which he gave the name of R. xanthina, and many years later the single-flowered form of this Rose was found growing wild in Mongolia by the French missionary David. English botanists have usually confused this Chinese Rose with R. Ecae and it apparently had not been cultivated in the United State or Europe until 1908 when the Arboretum received from the Department of Agriculture seeds of this Rose gathered in China by its collector, Mr. F. N. Meyer. Both the single and double-flowered forms were raised from this seed and have flowered in the Arboretum this year. The flowers are larger than those of R. Ecae and bright clear yellow. These Roses appear to be perfectly at home in the Arboretum, but it is too soon to speak of their value in North American gardens. The single and the double-flowered varieties are much cultivated in the gardens of Peking.