a—lB.

66

(V.) LIST OF PLANTS SUITABLE FOR DUNE-CULTIVATION IN NEW ZEALAND. 1

* = Hardy only in the North Island and northern part of South Island. t = Hardy only in the north of Auckland. Scientific Name. Common Name. Habitat. Growth-form. Remarks. Acacia armata . . dualbata .. deourrens .. longifolia .. lunata melanoxylon pyenantha* salicina Kangaroo acacia .. Australia .. .. Shrub, evergreen Silver wattle .. Australia .. .. Tree, evergroen Black wattle .. Australia .. . . Tree, evergreen Australia .. .. Shrub, evergreen Australia .. .. Shrub, evergreen Blaokwood; lightwood Australia . . . . Tree, evergreen Golden wattle .. | Australia .. .. Tree, evergreen Australia .. .. Small tree, evergreen .. Hedge plant. Eventually a tall tree. Produces many suckers; makes excellent Brewood. Bark used for tanning; makes excellent firewood. Dense habit of growth : makes rapid shelter; highly ornamental. As for above. Valuable for timber. A very important tree for dune-afforestation. Bark excellent for tanning, but yield not great. Dense habit of growth ; makes rapid shelter ; very ornamental. Besides tlie above species of Australian acacias there are many others probably equally hardy and suitable. Ornamental for sand-gardens ; will grow on aea-ehore. Produce* many offsets. Valuable fodder plant for dunes, though elsewhere a terrible weed. Also the var. atolonifera. Both are useful meadow-grasses; grow ehietly in sandhollows. As for above. Agave americana Agropyion repens Agrostis alba American oentury-plant Tropioal America . . Perennial herb Couch-grass .. .. Europe .. . . Grass, perennial Fiorin .. . . Europe, Asia . . Perennial graae vulgaris A I n us glutinosa incana Ammophila areuaria baltica .. Red-top .. .. North temperate region Perennial grass generally Common alder . . Europe, N. Asia .. Tree, deciduous Hoary alder .. .. Europe. Asia. X. Amerioa Tree, deciduous Marram-grass .. Europe, N. America .. Grass, perennial Baltic marram .. Europe .. .. Grass, perennial Suitable for sand-hollows. A sen , important tree for dune-afforestation. At best a email tree, frequently only a shrub. The most important sand-binding grass. Important sand-binder. Considered a hybrid between .-I. armaria and Elymus arenarui*. There is also a variety, maritima, which grows on the Bailie dunes. Resists the most violent salt gales. I cannot speak as to its capacity for growing on pure sand. Valuable for growing on Ice slopes of wandering dune. Frequently comes spontaneously. Has a creeping underground stem, and spreads more or less upon the surface of the sand with its branches 1 ft. in length. Not yet in New Zealand, but possibly of some importance as a fodder plant. Anthyllis vulneraria Araucaria Bidwillii Kidney-vetch . . N. Europe . . .. Herb, perennial Norfolk Island pine . . Norfolk Island . . Tree, evergreen Arundo conspicua Astragalus arenarius Toetoe (of ten incorrectly New Zealand .. Grass, perennial written " toi ") X. Europe .. . . Herb, perennial Atriplex nummulariumf • • semi bacca turn halimoidesf spongiosum vesicariumt Halimus Baecharis halmifolia Bet ula alba papirifera.. populifolia verrucosa Bromus unioloides Buchloe dactyloides I ( • Saltbush .. .. Australia Tree purslane .. Mediterranean region .. Shrub, semi-deciduous Groundsel-tree .. X. America .. .. Shrub, deciduous Common biicli .. Europe, N. Asia .. Tree, deciduous Canoe birch . . .. N. America . . . . Tree, deciduous White birch . . . . X. America .. . . Tree, deciduous Europe .. . . Tree, deciduous Sehrader's bromi V and 8. America .. Grass, perennial Buffalo-grass .. N. America .. .. Grass, perennial Probably a good many varieties of the saltbush would be hardy on the dunes of northern Auckland ; if so. they would make an important addition to the fodder-supply. All arc readily raised from seed, which could easily be procured from Australia by the Agricultural Department. Used in California for hedges near the sea. Is a low spreading shrub. Grows naturally near tidal rivers ami in -al! marshes. Will not tolerate wind to the name extent as the alder. Probably grows better on pure sand than />'. alba. As above. Closely related !■) the common birch, and by some considered k variety. Called "prairie-grass" in New Zealand. Grows well on pure sand; spreads rapidly from seed. Much relished by stock, who eat it out ; could be grown in hollows for Winter feed. Probably would grow on dunes ; if so. would be a most valuable fodder plant. Xot yet in New Zealand. Valuable for shelter: also hedge plant. Good for tire-screen. Buddleia globosa S. America .. .. Shrub, evergreen