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were all transplanted recently —- those families up to and includ- 
ing the Calycanthaceae during the fall of 1902, and the remaining 
families in the spring of 1903. What effect, if any, this may 
have had upon the plants and their ability to withstand an unusu- 
ally severe winter, cannot be definitely gauge In some cases, 
species grown in the fruticetum occur in other collections which 
have not been moved, and such cases may help in forming an 
estimate. 
As the plants in the truticetum are grouped in families, this 
subject will be discussed in the sequence of their sat 
mong the willows, some thirty species of which occur in the 
collection, there was no mortality, the ready ee of these 
plants to varying conditions forming a safeguard to the extreme 
cold. In the Myricaceae, to which belong the waxberry, Myrica 
Carolinensis, and M. Gale, and the Sweet fern, Comptonia pere- 
grina, all of which are in the collection, no unusual damage took 
place. The birch family, Betulaceae, presented but one shrub 
which proved for some reason unable to repel the cold; this is 
Betula humilis, a native of northern regions, and for this reason 
its being damaged was more of a surprise. Other species of this 
peated subjected to the same conditions and not affected, were : 
ong the alders, A/nus rugosa, mon in a wild state on the 
ae A, tenuifolia and A. Aln ae among the hazelnuts, 
Corylus Americana, maxima purpurea, Avellana, rostrata and 
Pontica ; and among the birches, Betula glanduliferaand B. pumila. 
As stated above, these were all transplanted in the fall of 1902, 
and it is puzzling to tell why Betula humilis should a so me 
affected, 0 others from regions equally as cold, should be im 
une e Fagaceae, the beech family, the ee came 
cok ae Castanca pumila, the chinquapin ; Quercus prin- 
oides and Q. nana. 
_ In the elm family, Ulmaceae, the Asiatic Clmus pumila is 
grown, and this was not harmed. mulberry 
ceae, is illustrated by the Asiatic Morus eed a proved 
perfectly hardy. In the crowfoot family, Ranunculaceae, of 
o species grown, the shrub yellow-root, Xanthorrhiza 
apiifolia, and Paeconia Moutan, only the latter was partially 
