17 



gum in South Australia at the following places : — Murray- 

 Desert; east of Hawker and Umberatana (Flinders Range); 

 Mount Ilbillie (Everard Range); Mount Watson (Birksgate 

 Range) . 



E. microtheca, F. v. M. Murnpeowie Creek (H. W. 

 Andrew). This is the most southerly record for South Aus- 

 tralia, although in New South Wales it has been collected 

 near the Barrier Range. 



E. dumosa, A. Cunn. At Ooldea Soak a large "white 

 mallee," with fruits 6 mm. in diameter; at the 407-mile 

 Station (next to Ooldea) a small mallee 1J-2 m. high, with 

 fruits 8-9 mm. diameter. In both cases the points of the 

 valves are so much exserted that at the first glance the speci- 

 mens might be pronounced E. oleosa, but the buds, of ^gg- 

 in-egg-cup shape, with truncate ribbed opercula, oblong anthers 

 opening in longitudinal slits, and fruits not contracted at the 

 orifice determine the species. Also collected by Dr. del and 

 80 miles north of Renmark. 



E. oleosa, F. v. M. Between Ooldea Railway Siding and 

 Ooldea Soak. "Water mallee," so called because the natives 

 obtain water from the roots; known to the natives themselves 

 as "nabbari" or "ngabbari," and further north it is called 

 "nabbara" or "abbara." 



This is the form which Mr. J. H. Maiden described in 

 1911 (Journ. W.A. Nat. Hist. Soc. iii., 171) as var. glauca, 

 and in 1919 (Journ. Roy. Soc. N.S. Wales liii., 58) raised to 

 specific rank as E. transcontinentalis . He distinguishes it 

 as having glaucous leaves, "buds with elongated opercula 

 about twice as long as the calyx-tube, and which are some- 

 what constricted, particularly on drying." I have specimens 

 from Moolooloo and Leigh Creek (Flinders Range), Tooligie 

 and Donald Plain, E.P., the Musgrave Range, also from the 

 MacDonnell Range, N.T., all with whitish leaves and 

 acuminate opercula considerably longer than the tube, often 

 twice as long, but other specimens from Quorn southwards 

 to Maitland, Y.P., and Enfield, and eastward to the Murray 

 Scrub have similar flowers with long acuminate opercula, but 

 green leaves. My field note on the specimens from the Mur- 

 ray Scrub states: "leaves lanceolate, dark green on both 

 faces." 



Thryptomene Whiteae, J. M. Black. Specimens col- 

 lected by me at Wynbring, East- West Railway, with more 

 mature and ribbed calyxes, prove that this name must be 

 reduced to a synonym of Th. Elliottii, F. v. M. I have been 

 allowed an opportunity of examining the type of Th. Elliottii, 

 which was collected by E. Giles between Ooldea and Char- 

 lotte Waters, and is now in the National Herbarium of 

 Victoria. 



