i 3 o HORTICULTURAL SOCIETY OF NEW YORK. 



It will not be possible to refer to all the plants brought 

 together in this collection. For a detailed account of the be- 

 havior of a large number of these during the winter of 1903-1904 

 the reader is referred to the Journal above referred to. 



As this collection is for study purposes, it is arranged in 

 botanical families, following the sequence of Engler and Prantl. 

 For this reason, the shrubs will be considered in family groups. 



The genus Berberis, the barberries, furnishes a number of 

 species which are perfectly hardy. Among these are B. vul- 

 garis and its purple-leaved form; B. amurensis, from Manchuria 

 and north China; B. aristata, from the Himalayan region; B. 

 buxi folia and its variety nana, from the southern Andes; B. 

 Neuberti, of hybrid origin; and the ever and deservedly popular 

 B. Thunbergii, perhaps the best barberry ever introduced into 

 cultivation. The beautiful little barberry, B. concinna, from 

 the Himalayan region, kills back somewhat at the tips. In a 

 more sheltered situation it would almost surely prove hardy. 

 It is a dainty little species and colors beautifully in the fall. 



In the hydrangea family there is Hydrangea quercifolia, 

 from Georgia and Florida, which kills back partly at times. 

 Duetzia crenata and its derivatives are unstable, sometimes kill- 

 ing back to the ground, while D. gracilis and its derivatives are 

 much more hardy. All of the genus Philadelphus, including all 

 of the commoner forms offered in the trade, have proved per- 

 fectly hardy. 



In the gooseberry family nearly everything is satisfactory. 

 Ribes sanguineum, from the west coast, however, is apt to suc- 

 cumb to exceptional cold, and always is a little unstable. One 

 member of this family of comparatively recent introduction is 

 Ribes curvatum, from the southern Alleghenies. It has proved 

 entirely hardy during our coldest winters. It is most desirable 

 from a decorative point of view. Its branches are long, slender 

 and spreading, giving the plant a very graceful appearance, 

 much resembling in habit Stephanandra flexuosa. During the 

 early summer it is covered with a multitude of dainty white 

 flowers. 



In the witch-hazel family Corylopsis spicata, from Japan, 

 and Fothergilla Carolina and F. major, both from our Southern 



