VI ILLUSTRATIONS. 



15, A. Shoot-tip showing leaves and fruits of Melaleuca parviflora, or "black" tea-tree, from 



Myrtle Springs road, Copley. 

 B. Tip of shoot of Eremophila alternifoUa with flowers and leaves, Copley. 

 c. Leafy shoot of Acacia varians from a wash east of Copley. 

 D. Melaleuca glomerata, "white" tea-tree, from Leigh's Creek, Copley. 



16, A. Eremophila longifolia, Copley. 



B. Branch of Acacia tetragonophylla with short spinose phyllodia and inflorescence 



buds, Copley. 

 c. Acacia tetragonophylla in low hills on Mount Series road, east of Copley. 



17, A. Leafy shoot-tips with fruit of Fusanus spicatus, the "quandang," and F. acuminatus, 



the native "peach," Mount Deception Range, Copley. 

 B. Myoporum platycarpum from low hills in Mount Series road, Copley. 

 c. Shoot-tip with leaves and fruit of Loranthxis exocarpi and leafy branch of host, 



Acacia sentis, Copley. 

 D. Loranthus exocarpi, at right, and Eremophila brownii, host, Copley. 



18, A. Loranthtis quandang, with oval leaves, and the narrow-leaved form of Acacia aneura, 



the "mulga," its host. From Mount Searles road, east of Copley. 



B. Loranthus linearifolius on Acacia tetragonophylla. The host is shown with character- 

 istic spine-like phyllodia. Copley. 



c. Loranthus exocarpi, with leaves and fruit and shoot-tip of its host, Myoporum platy- 

 carpum, Copley. 



19, A. Acacia aneura, the mulga, at Ooldea. 



B. Eucalyptus oleosa by a wash at the eastern base of Mount Deception Range. The 

 prominent stem base and enlarged crown of the taproot, both characteristics 

 of the "mallee," are shown. Copley. 



20, A. Detail of branch of Acacia colletioides showing spine-like phyllodia Ooldea. 



B. Narrow "leaf" form of Acacia aneura, the mulga, at Ooldea. Young fruits are shown 



on one of the branches. 

 c. Broad "leaf" form of Acacia aneura, the mulga, at Ooldea. 



21, A. Eucalyptus pyriformis a,t Ooldea. Various species of .Acacia and the mallee, E^ucaiyp- 



tus incrassata var. dumosa, make up the surrounding woody vegetation. The 

 floor is bare. 

 B. Eucalyptus leucoxylon var. macrocarpa, middle ground, and E. incrassata var. dumosa, 

 on the hillside beyond, near Ooldea. 



22, A. Fruits of Eucalyptus pyriformis from Ooldea. The fruits are about 5 cm. in diameter. 

 B. Leptospermum loevigatum var. minus, in flower, from the Ooldea Soak. 



c. The shrubby Eucalyptus leucoxylon var. macrocarpa in flower, from Station 408 near 

 Ooldea. 



23, A. Pholidia santalina from mallee community of low ridge west of Quorn. 

 B. Callistemon teretifolius, from ridge on Mount Arden road, Quorn. 



c. Aphyllous Acacia continua from low hills on the Pichi Richi road, west of Quorn. 

 D. Tip of branch of Acacia calamifolia, in fruit, showing the linear phyllodia. From 

 open Casuarina forest on the Melrose road, east of Quorn. 



24, A. Gravillea stenobotrya shoot showing leaves and fruits, from Station 408, near Ooldea. 

 B. Leaf habit of Eremophila rotundifolia, Tarcoola. 



c. Tips of a branch of Acacia rigens, with phyllodia, Tarcoola. 



D. A fruiting branch of Acacia tarculiensis showing characteristic phyllodia. From 

 type habitat, Tarcoola. 



25, A. Acacia rigens, the "myall," with various halophytes, on plain north of Tarcoola. 



B. Thicket of mallee. Eucalyptus oleosa, on sloping saltbush plain, foothills of the 



Flinders, east of Port Augusta, near Saltia. 

 c. "Beef wood," Gravillea stenobotrya, on the crest of eandhill by Station 408, near 



Ooldea. 



26, A. Forest of Eucalyptus rostrata on Saltia creek, east of Port Augusta. 

 B. Pine community, Callitris robusta, at Warren's Gorge, near Quorn. 



c. View in mallee scrub, about 2 miles north of Quorn. Eucalyptus odorala and E. 

 oleosa in the background. Bunches of Triodia irritans in the foreground. 



