142 JOURNAL OF THE ARNOLD ARBORETUM [VOL. in 



Solanaceae Caprifoliaceae 



Lycium Abelia 



Solanum Diervilla 



Scrophulariaceae Dipelta 



Paulownia Kolkwitzia 



Pentstemon Linnaea 



Veronica Lonicera 



Bignoniaceae Sambucus 



Anisostichus Symphoncarpus 



Bignonia Viburnum 

 Catalpa Compositae 



Rubiaceae Artemisia 



Cephalanthus Baccharis 



Leptodermis Chrysanthemum 



Mitchella Pertya 



RECORDS AND LABELS 



As far as it has been possible to do it the record of every species and 

 variety of the trees and shrubs planted in the Arboretum has been kept 

 in a card catalogue and to each has been given a number. The exact 

 position of each tree in the systematically arranged groups is designated 

 on the sheets of a large-scale map and with them is kept the detailed 

 history of each tree in the hope that it will be possible for a stranger to 

 locate every tree in the collection even if the labels are lost. 



To a branch of every important plant in the Arboretum is attached 

 a small metal label on which the name, origin and card catalogue number 

 of the plant is stamped with raised letters. These labels are to preserve 

 records and not for public use. For the instruction of visitors zinc labels 

 six inches long and four inches wide painted brown with their Latin and 

 English names and their native country in black letters are fastened with 

 copper nails to the trunks of large trees at about the height of the eye. 

 Small trees and large shrubs are furnished with oblong wooden labels about 

 eight inches long painted white with black letters and hung from a branch 

 in a conspicuous position; metal labels of about the same size as the trunk 

 labels and raised a few inches above the surface of the ground are placed 

 before the plants in the general shrub collection. 



THE INTRODUCTION OF NEW PLANTS 



In 1872 when Harvard College agreed to obtain as far as practicable 

 for the Arnold Arboretum all the trees, shrubs and other plants which could 

 be grown in West Roxbury very few such plants could be found in any 

 private or commercial collection in the United States, and a large number 

 of them were still unknown either in this country or in a living state in 



