79 



(3.) T. Oarolmianff, Engelmann. " Carolina Hemlock Spruce." Sargent, 



t. 604. 



This species, originally found in Carolina, also occurs in suuthern Virginia 

 and northern Georgia. It is a recent introduction into Great Britain as is 

 stated "has thus far proved hardy in the neighbourhood of London.'' It 

 will probably be found useful in many parts of eastern New South Wales. 



(4.) T. Sic-bolda, Carriere. "Japanese Hemlock Fir'' 

 A medium-sized tree much cultivated in Japan. 



T. Skboldii takes the place of T. diierxifolta south of Xikko, ascending in places to a 

 considerable elevation, nowhere forming a continuous forest, but scattered iu groves 

 among deciduous trees or mixed with Pinna denxiflora. ( Ve tch'a Manual, p. 473.) 



It is, therefore, more likely to succeed in New South Wales than T. divcr- 

 xifoUu, the other Japanese sj ecies, which forms a great for- st, covering the 

 Nikko Mountains at an elevation of more than 5,000 fei't. 



20, Pseudotsuga.* 



An anomalous genus pivsvMiting affinities to Abie* and Tsuya and less 

 closely to Picect. Kent, in l r eitch } 8 Manual, proposes to provisionally place 

 Kelr.leei'ia with it. 



(1.) P. Donglatii, Carr. "The Douglas Fir" or "Red Fir." Sargent, 

 t. 607. 



The foregoing outline of the distribution of the Douglas Fir brings out prominently 

 the following remarkable facts : It is the most widely distributed, not only of all 

 American Fiis, but of all American trees. Tt is spread over 32 d< grees of latitude, a 

 meridional lange greater than that of any ott er coniferous tree, excepting, perhaps, the 

 common Juniper ; it must thence possess a constitution that "enables it to endure the 

 fierce t.ales and long winters of the north and the nearly perpetual sunshine of the 

 Mexican Cordilleras; to thrive in the rain and fog which sw-ep almost continuously 

 along the Pacific coast range, and on the arid mountain slopes of the interior, where for 

 months every year rain never falls. "t The Douglas Fir is not only one of the most 

 interesting, but it is also one of the most valuable of trees ; its size, its capacity of 

 adapting itself to new surroundings and the excellence of its timber, all contribute to 

 make it one of the most important inhabitants of t'ie forests of Western America. It 

 attains its greatest development in the humid .'on lands of Western Washington and 

 Oregon, especially around Puget Sound and on the \vestern slopes of the Sierra Nevada, 

 where the precipitation from the I acific Ocean is greatest; in these regions it often 

 attains a height ot' 300 feef, with a trunk 9 to 12 feet in diame er.+ ( IVzVrA's Manul, 

 p. 480.) 



* Kent, in I'eitch'x Manual (2nd edition, p. 474), proposes to reject, the above name 

 (substituting Ab cliu) for the following reason: An uncouth, barbarous name, half 

 (ireek, half .Japan* s^, " utterly bad in construction," and misleading in such meaning as 

 it has, and which I have refused to adopt as a protect against the admission of such names 

 into scientific nomenclature. Also, in compliance wiih Art. CO, sect. 4, of the Laws of 

 Botanical Nomenclature, adop'ed at the International Botanical Coni:re&s, held at Paris, 

 in 18t>7, which enacts that Everyone is bound 10 reject a name which is formed by a 

 c>mbii ation of two languag< s 



The Vienna Congress does not make this a valid reason, and the supercession cf names 

 for such reasons is dangerous. 



t Silva of North Ameiica, xii, p. 91. 



t The British public have had for many yeais past an opportunity of forming an idea 

 of the stupendous dimensions attained by this trte. In the Royal (Jardens at Kew is 

 erected a flagstaff brought from Vancouver Island ; it consists of a single piece 159 feet 

 in length, 22 inches in diameter at the base, tapering to 8 inches at the summit ; it 

 weighs 3 tons and contains 157 cubic feet of timber. 'J he tree from which this flagstaff 

 was made was 250 years old, as indicated by its concentric rit?gs. 



