103 



P 



for the forest official and collectors, with sheds and other offices 

 for the reception of the latex and the preparation of the dried 

 rubber. It was also necessary to clear 10 acres of ground for 

 the production of food stuffs for the workers. Marhhamia 

 (Dolicliandrone) platy calyx, is one of the best timbers of the 

 region, and 810,000 trees of that species were planted in the 

 Busoga Forest Fuel Reserve to 10,000 specimens of other species. 

 Other important trees are: Bahamooitrus Dawei, Cynomeir / 



Alexandria Entandrophragma angolense, E. utile, Khaya antho- 



theca, Lovoa budongensis, Podorarpus gracilior. P. milanjianus 



var. arborescens. Of introduced trees, Teak (Tectona grand is) 

 appears to be growing freely, and in some places Eucalyptus spp. 

 are making rapid growth. W. d. 



Coprosraa. — The genus Coprosma, first instituted by Forster 

 in 17 76; hitherto regarded as of little or no economic importance, 

 has recently been found to possess some interest for the pro- 

 duction of dyes from the bark. Out of about GO species which 

 the genus comprises, approximately half indigenous to New 



Zealand, the following six have been specially tested by the 

 "Department of Agriculture, New Zealand, for their dyeing 



capacity.- -G\ grandifolia, Hook, f., C. lucida, Forst., C. 

 Baueri, End]., C. rnbvsta. Raoul, C. areolata, Cheesem., and 



C. foclidissima, Forst. These were selected because of their 

 abundance; other species expected to be of interest were not 

 ^desirable because of their rarity or small size. The first two 

 species mentioned are stated to " f all into o class apart in 

 giving purplish or maroon fast dyes on chrome mordants with 

 wool and orange-scarlet (tangerine) to dark-red shades with stan- 

 nous mordants and tartar in the single bath method." Of the 

 remainder it is said : " Two very common species in "Wellington, 

 C. Bauer? (the taupata) and C robusta, have given quite nega- 

 tive results in dyeing tests. Coprosma lucida, which also has 

 bark and wood of a yellow colour, gives good reddish-brown 

 colours, which are fast to lisrht and soap, to chrome and alumina 

 mordants. Coproswa foetidissvma (the hupiro of the Maori and 

 the ri stinkwood M of the settler), which has a light green bark, 

 has proved a disappointment, for although giving excellent 

 brown and yellow colours to chrome and stannous mordants 

 respectively and fast to soap, they are not fast to light. This 

 is more to be regretted as the plant has strong tinctorial proper- 

 ties and is verv abundant in some districts." 



- 



For fuller information on the experiments, reference should 

 be made to the paper from which these note^ are taken. — " The 

 frenus Coprosma as a Source of Dyes/* by B. C. Aston, F.I.C., 

 in the Xew Zealand Journal of Science and Technology, vol. i.. 



BTo. 5, 1918, pp. 264-267. 



Brimstone Tree of Sierra Leone. — In the Kew Bulletin for 



1916, pp. 8-16, figs 1-4, the writer gave an account of the 

 "" Brimstone Bushes " of Tropical West Africa, which name is 

 applied to certain species of Morinda (Rubiaceae). According 



