353 



Australian forms, are very distinct. E. aumo&a includes var. 

 conglobata, Benth., which is common at Port Lincoln and has 

 clustered, sessile flowers. 



RUBIACEAE. 



Galium Gaudichaudii, DC. Parachilna Gap (Dist S ; 

 E. H. Ising). 



GoODENIACEAE. 



Goodenia vernicosa, J. M. Black. Parachilna Gap (E. H. 



Ising). 



COMPOSITAE. 



Helichrysum ambiguum, Turcz. If all the forms with 

 solitary terminal flowerheads on woolly peduncles, ciliate or 

 fringed involucral bracts, pappus-bristles plumose towards the 

 summit, and female flowers usually devoid of pappus are to 

 be placed in this species, then it becomes one of great varia- 

 bility. In the Tate Herb, is a specimen from Barrow Range, 

 W. Austr. (R. Helms, 19/8/91), with soft, white-woolly 

 appressed leaves only 4-8 mm. long, female flowers 4-toothed, 

 the bisexual ones with 12-14 fragile pappus-bristles, the style 

 swollen and hard at base. This form is probably near the 

 type (which was collected by Drummond in Western Australia), 

 and it bears a remarkable external resemblance to Calocephalus 

 Dittrichii, F. v. M. Specimens from Idracowra, Finke River, 

 N.T. (Horn Expedition), and Depot Sandhills, Finke River 

 (S. A. White), agree with the above in most respects, but 

 the pappus-bristles are 6-9, and much dilated at base. Then 

 there are specimens with stiff greenish leaves, glandular- 

 scabrous above and more or less woolly below, from Ilapilla 

 Gorge, N.T. (Horn Expedition) ; between Ferdinand River 

 and Mount Watson (Dist. W; R. Helms); Nuccaleena Mine, 

 near Moolooloo (E. H. Ising); Mount Lyndhurst (H. Koch) ; 

 all these have pappus-bristles 12-18; female flowers 3-toothed, 

 without pappus (in the heads examined). Probably these 

 represent H. semicalvum , F. v. M. (var. semicalvum , Benth). 

 The Mount Lyndhurst specimen (Tate Herb.) has leaves 

 10-35 mm. long and simulates H. rutidolepis, DC. More 

 complete material may some day furnish characters for 

 dividing these plants into 2 or more species. The achenes are 

 slightly contracted at the summit, but not more so than in 

 some other species of Helichrysum, and it does not seem 

 necessary to transfer the species to Le/ptorhynchus. 



Olearia decurrens, (DC.) Benth. Oratunga Creek, near 

 Moolooloo (Dist. S; E. H. Ising). Almost all the leaves 

 toothed in their upper part, those on the barren branchlets 

 linear-cuneate and often 4-5 cm. long, the midrib prominent 



M 



