PINETUM DANICUM. 



441 



been grafted on P. aJha, They generally have a slow growth, and 

 all are very prickly. 



P. sitchensis is to be found in Danish gardens of from thirty to 

 forty years old. Some planted in 1864, and recently measured, gave 

 the following dimensions : Height, 49 feet ; girth, 3 feet 6 inches. 



P. Yezomomi. This is a new species recently introduced into 

 Europe from Yezo. I think it will prove hardy in Denmark. 



35. TSUGA.— Endl. Conif. 83. Picea, sect. 2, Link in Linnsea, 

 XV. 523. Abies, sect. 4, Feucoides, and sect. 5, Microjjeuce, Spach, 

 Hist, des Yeg. Phan. xi. 423, 424. Tsuga, Carr. Conif. 185, and 

 ed. 2, 243. Keteleeria, Carr. in Rev, Hort. Ann. 1866, 449, and 

 Conif. ed. 2, 260 ; Beissn. Nadelh. 393 ; H. Mayr, Monogr. Abieti- 

 neen, 1890, 58. 



Floi'jers monoecious ; the male flowers axillary, almost terminal as 

 they are placed near the upper leaves. The female flowers are 

 terminal. Cones pendent, almost spheroid, about 1 inch long ; in 

 one species three times as long. 



Cotyledons three to six. 



Leaves small, linear, flat or slightly four-sided ; they are somewhat 

 spirally scattered, but often arranged in two rows. 



Evergreen trees, with shoots and twigs pendent and gracefully 

 curved. 



The species of this genus are all found in eastern and western 

 North America, in Japan, and on the Himalayas. 



T. Brunoniana, Carr. Conif. ed 2, 247. Pinus dumosa, Don, 

 El. Nepal. 55. P. decidua, Yv^all. Mss. P. Brunoniana, Wall. PI. 

 Asiat. Par. iii. 24, t. 247. Abies Brunoniana, Lindl, in Penny 

 Cyclop, i. No. 9. A. dumosa. Loud. Arb. Brit. iv. 2325, f. 2233-34. 

 ( • Habitat. — In the temperate Himalayas at an elevation of 8,500- 

 11,500 feet, in Bhotan. It was first discovered by Captain Webb in 

 the north-west of Nepaul, in the inner valleys of Sikkim ; here Hooker 

 found trees of about 130 feet high, and about 30 feet in circum- 

 ference. Wallich first called the tree Finns decidua, because damaged 

 or broken branches drop their leaves. 



A fine tree, growing from 70 to 80 feet high, with spreading 

 branches and pendulous brittle branchlets, found in Bhotan Proper, 

 occurring from 6,500 to 9,500 feet of elevation ; a large, solitary tree. 

 Dr. Griflitli measured one specimen 27 feet in girth, at a height of five 

 feet from the ground. Dr. Hooker found it in Sikkim, forming a 

 narrow belt at an elevation of from 9,000 to 10,000 feet, on the south 

 flank of Kunchinjunga, probably the loftiest peak in the world ; but 

 in the innermost valleys the limits are from 8,500 to 10,500 feet of 

 elevation. 



In Nepaul it is called " Changathasi-Dhoop," a name implying 

 that it is employed for inceiise. 



