LAPACHO, _Tabebuia Avellanedæ_, LORENTZ, _Tabebuia flavescens_, Benth.—This beautiful tree is covered with blossoms in spring time, the former with pinky mauve and the latter with yellow blossoms. In the northern forests it grows to a height of 25 metres, its wood is very fine-grained and very much prized for all sorts of fine carpentry. Two excellent kinds for stock in tall mixed woods, 1st and 2nd regions. To be sown in rows, in furrows or small holes.
COCO (Cocoanut Tree), _Zanthoxylum Coco_, Gill.—From 10 to 12 metres in height by 0·75 metre in diameter. The wood is very pretty and fine, valued for elegant furniture. To be sown in rows, furrows or small holes as an auxiliary in mixed woods and plantations in the 1st and 2nd regions.
URUNDAY, _Astronium juglandifolium_, Grisb.—A splendid tree from 25 to 30 metres in height by 1·50 metres in diameter, common in the Chaco. Its timber is very hard and richly coloured, it is used for furniture, ship-building, etc. One of the best kinds for stock and reafforestation in the first region. Multiplies naturally from seed if care be taken to leave a few trees standing at suitable distances for producing seeds, which scatter easily. In the warm valleys of the 4th region, as well as in the 2nd, to be sown in furrows with other auxiliary species for afforestation.
ALDER TREE, _Alnus ferruginea_, Kth.—From the Northern Andean region, where it grows to a height of 15 metres by 0·75 metre in diameter. Gives white, very easily worked, damp-resisting timber, used for joinery work. A good auxiliary kind for afforestation in 1st, 2nd, 4th and 7th regions. To be sown in rows, in furrows or in plots with other species, one being the stock tree.
NATIVE or RED WILLOW, _Salix Humboldtiana_, Witti.—15 metres in height by 1 metre in diameter. Grows well in all regions where the eucalyptus does not freeze, gives timber for carpentry and multiplies from seed. A good auxiliary in mixed woods and timber for cutting, and for reafforestation on damp soil, where it is planted from twigs towards the end of the winter. For afforestation it is sown in plots when the seeds are ripe, in regions 4 and 7 and the more temperate part of region 3.
SOUTHERN PINE, _Araucaria imbricata_, R. and P.—A tree 50 metres in height of our southern forests. Its timber is equal to the best pine, and it is one of the best stock kinds in the 6th region. To be sown in rows or in little holes when the seeds drop naturally in the 5th and 6th regions.