TREES OF THE CAMBRIDGE BOTANIC GARDEN. 



9 



Elwes and Henry believe it to be a sport of T. tomentosa ; the 

 branchlets, buds, and flowers are identical with those of that species. 

 The petioles, however, are longer, and the fact that bees are killed by the 

 flowers appears to indicate a certain amount of essential difference. 

 Whatever the origin of the tree, it is one that should be planted in every 

 garden that is not too small for it. 



21. Garrya elliptica Dougl. (Botanical Register, t. 1686). 

 Both interesting and ornamental, this N.-W. American shrub is 



found in most gardens, especially those in the milder parts of the 

 country. Cambridge has no claim to mild climate, but I know no finer 

 specimen than ours. It measured, four years ago, 29 ft. by 18 ft. 

 and over 11 ft. high. It is now 12 ft. high and 31 ft. wide. It is the 

 male plant that is most ornamental and best known, but the flowers 

 of the female plant are also on catkins. It was discovered by one 

 of the Society's collectors, the well-known David Douglas, whose 

 Journal has recently been published under the editorship of our 

 Secretary, and it was described as the greatest curiosity in his col- 

 lections. We now know that it really belongs to the Family 

 Cornaceae, but it was said to differ essentially from any known order 

 and to constitute the commencement of a new group. It was upon 

 this species that the genus was founded, and though we are not now 

 in difficulty as to its position it is still of great interest on account 

 of its male and female catkins, which are anomalous in the Family . It 

 grafts on Cornus, and this fact was formerly mentioned to show that 

 a plant of one Family could be grafted on another. 



22. Paulownia tomentosa Koch (Elwes and Henry, vi. 1493). 

 Although not one of the largest examples, this tree is one to be 



proud of. It is now 23 ft* 4 in. high, with a diameter of 28J ft., and is 

 sometimes very fine in flower, never failing to flower tolerably well. 

 The finest tree in Europe is probably an original one in the Jardin 

 des PI antes, Paris, which, in 1904, was about 60 ft. high and 12 ft. in 

 girth. The largest tree in England is believed to be one standing near 

 the entrance lodge at Westonbirt, Gloucestershire, which, in 191 1, was 

 56 ft. high by 7 ft. at 3 ft. from the ground. The wood of Paulownia 

 has a beautiful grain and is preferred of all others for wardrobes on 

 account of its resistance to damp. The well-known name Paulownia 

 imperialis (Siebold and Zuccarini, Fl.Jap. i. 27 (1835) ) for this tree is 

 not the earliest ; in 1784 it was named Bignonia tomentosa by Thunberg 

 in his Flora of Japan, and Koch in his Dendrologie, ii. Pt. 1, p. 299 

 (1872), placed it in its earliest correct genus with its earliest specific 

 name. It is one of the very few trees of the order Scrophulariaceae. 

 It has the peculiarity of forming its flower buds which open in the 

 following June before the leaves fall in autumn. 



23. Drimys Winteri Forst. (Bot. Mag. t. 4800). 



Under the name of Winter's Bark this tree once possessed some 

 celebrity. The use of its bark medicinally as a tonic was brought 



