138 AXOTIC TREES FOR NORTHERN FORESTS. 
adds, ‘‘ It may be that 7. lehmanni and E. cornuta pass into each other 
as we go east.”’ Even admitting this, the type of the two trees, as I 
have seen them in Western Australia and under cultivation, are (as 
Naudin says) as distinct as any two species in the genus. 
I have not grown the following two species. but they may be worth 
trial. 
Rep Trneue-1trxncue (Hue. jacksontt),—Kea Tingle grows on the 
Franklin River about forty miles to the westward of Albany, and is 
credited to grow up to 350 ft. in height. It is confined to a small area 
about six miles deep and fifteen miles long, alongside the river. Says 
Conservator Lane-Poole: ‘‘I have not yet seen the country, but the 
timber is excellent, and, weight for weight, comes next to Karri. It is 
stronger than Karri in transverse strength and cross-compression, while 
its tensile strength is 15,700, as compared with 18,750 for Karri.”’ 
Another suitable tree, growing in much the saine locality, is the &a- 
called Yellow Tingle-tingle (Awe. quilfoytic), This is not a large timber. 
but is said to be durable in the ground. It may he quick-growing. 
The Kauri-gum Commission of 1914, p. 21, estimated 100,000 acres 
of Crown land and 200,000 acres of private land were affected by the 
sand-drift of the extreme north of New Zealand. 
THREE SpECcIAL PINES. 
Short-leaf Pine.—As a tree for the * mixed ’’ forest the ‘‘ Short-leaf "’ 
Pitch-pine (Pinus echinata) seems particularly useful. It grows in the 
Gulf States, U.S.A.. in a very wet climate. It is an tuportant timber- 
tree, covering a wider area than any other pine in the United States, 
the young trees coming up like grass and shooting again when burnt, 
It does not grow as fast as Kauri, so that there seems no danger in 
letting it into a Kauri forest; but it would be advisable to try it first 
‘n ‘mixed?’ forest. The following extract shows the typical tree aimed 
at by the American forest management :— 
On the national forests of Arkansas the Federal Government in its manage- 
ment of Short-leaf Pine aims to produce the sort of material most needed by the 
people, which is mostly medium-sized saw timber. A rotation of about 100 years 
in fully-stocked pure stands affords the largest yearly vield. The average tree at 
this age, grown under forest conditions, is 74 ft. in total height by 16°6in. in 
diameter, and contains nut less than 270 board feet of merchanta ble tim ber. 
This is a very much slower growth than Kauri under the same cir- 
cumstances (p. 14). 
Cuban-pine versus Insignis.—The Cuban-pine from the northern part 
of its habitat in south Carolina is well worth trial in northern New Zea- 
land. Jt is a pushing, fast-growing, fire-resistant, valuable tamber-tree; 
in the forests of the Gulf States, U.S.A., producing resin at forty 
years, and fit to cut for timber at fifty. It as one of the best of the 
Pitch-pines, and gives a first-class house, sleeper, and railway wood. 
Both the climate and soil of this tree are those of northern New Zea- 
land. If the tree should take kindly to a new home in New Zealand. 
reproduce itself abundantly, and produce first-class Pitch-pine timber 
in fifty years, it is easy to see how such a tree would enhance the value 
of the northern forests. That it will do this is not merely a probability. 
but almost a certainty. Says W. R. Mattoon, of the Research Branch. 
U.S.A. Forest Service, ‘‘ It is very, doubtful if any other North American 
conifer combines silvicultural and economic qualities of an equal value.” 
