APPENDIX IV. 



351 



latescens, a., b 

 latifolia. Q., b. 

 leptophleba, a., c. 

 hptostachya, Q. 

 limbata, b. 

 linarioides, b. 

 loxocarpa 

 Luehmanni, b. 

 lycopodifolia,S.A.,Q.,b.,c. 

 lysiphlcea, S.A., Q., b., c. 

 megalantha, a., c. 

 minutifolia, a., c. 

 uotabilis, W.A., S.A., 



N.S.W., c. 

 oncinocarpa, a., b. 

 oligoneura, b. 

 orthocarpa 

 Oswaldi, S.A., N.S.W., 



Q., c. 

 pachycarpa, a., c. 

 pallida, c. 

 patens, S.A., c. 

 pendula 

 phlebocarpa, Q., b. 



pityoides, Q., b., c. 

 plectocarpa, b. 

 polystachya, Q., b. 

 praelongata, a., b. 

 ptychophylla, a., c. 

 pyrifolia, W.A., c. 

 ramulosa; W. V. F. 

 retinervis 



retevenia, S.A., c. 

 salicina, W.A., S.A, V., 



N.S.W., Q., b., c. 

 sclerosperma 

 Sentis, W.A., S.A., V., 



N.S.W., Q., b.c. 

 sericata, Q., b. 

 sessiHceps, a., c. 

 setulifera 

 sibirica, W.A., c. 

 Simsii, Q., b. 

 spathulata, W.A. 

 spondylophyUa, S.A., c. 

 stenophyUa, S.A., V., 



N.S.W., Q., c. 



stereophylla, Diels and 



Pritzel. 

 stigmatophyUa, b. 

 stipuligera, S.A., Q., c. 

 stipulosa, W.A., c. 

 strongylophylla, a., c. 

 suberosa, b. 

 subtemata, a., b., c. 

 Sutherland!, Q. 

 tanumbirinense, n. sp. 

 tenuissima 

 tetragonophyUa, S.A., 



N.S.W., Q., c. 

 torulosa, Q., b. 

 translucens, b., c. 

 trineura, S.A., V. 

 tumida, b., c. 

 ulioina, W.A., S.A., 



N.S.W., Q., c. 

 umbeUata, Q., b., c. 

 Wickhami, b., c. 

 xylocarpa, b. 



Total 90 species 



CONCLUSION. 



I hope this preliminary paper may be of some use as forming a basis for 

 consideration of the Acacias of the Northern Territory. I have encountered 

 unexpected difficulties in finding that certain specimens and plates did not 

 always tally with the descriptions. Materials of tropical (particularly coastal) 

 Australian Acacias are. in the case of some species, not quite satisfactory, but 

 the director of Kew (Sir David Prain), the keeper of the Kew Herbarium (Dr. 

 Staff), the keeper of the British Museum Herbarium (Dr. A. B. Rendle), and of 

 the Melbourne Herbarium (Prof. Ewart) have always promptly helped me with 

 material. As regards a number of the older species, it is to be borne in mind 

 that they were obtained from the coastal districts, and only those who have 

 collected in the tropics in coastal areas know how very difficult (and in the 

 rainy season almost impossible) it is to preserve good specimens. 



In many species (and this also applies to some of the six species I propose 

 as new), botanists have, even to the present day, found it impossible to obtain 

 both flowering and fruitiag specimens, at all events properly matched. 



The assiduous collector (Mr. G. F. HiU) of most of the material dealt with 

 for the first time in this paper, and Mr. C. E. F. Allen, are both officers of the 

 Commonwealth Government, resident in Darwin, and they are doing good work 

 in collecting property matched material of the genus, and ia giving data con- 

 cerning the plants. It is hoped, therefore, that in a very few years our know- 

 ledge of the Northern Territory Acacias will be more certain than it is at the 

 present time. We are dealing with a Territory rich in the genus, and I believe 

 that many more species remain to be discovered in it, some of them new to 

 science. 



I am very grateful for the assistance of Miss Margaret Flockton, who has 

 made admirable detail drawings of many of the species, and also of Mr. W. F. 

 Blakely, one of my botanical assistants, who has given me most valuable help. 



