648 



shape of the flower-heads are exactly the same. The globular 

 heads are 8-10 mm. in diameter ; the others are 10-20 mm. 

 long, and vary from ovoid to oblong. The plants seem usually 

 about 10 em. high, but some specimens, brought by R. Cock- 

 burn from the Birdsville track, are 22 cm. high, with heads 

 distinctly oblong. 



Note on ('. pleiocephala and C. chrysantha. — These two 

 species are easily distinguished by their general appearance, 

 although the characters which divide them are not very 

 marked. They may be defined as follows: — 



C. pleiocephala. C. chrysantha. 



Leaves oblong-cuneate, sprinkled Leaves linear, white - woolly, 



with hairs, but green. becoming glabrous with age. 



Bracts of general involucre Bracts of general involucre quite 

 greenish and more or lesa hidden, 

 conspicuous. 

 Corolla-lobes long, about J the Corolla-lobes shore, about g the 



length of the corolla. length of the corolla. 



Pappus-bristles 9-12, free. Pappus-bristles 10-16, united in 



a ring at base. 



The clustered compound heads attributed to C pleiocephala 

 are a somewhat deceitful distinction, as there is sometimes, 

 although very rarely, a second head at the base of the large 

 one in C. ch rysa n the . 



Calot is multicaalis (Turcz. aim., 1851), J. M. Black 

 (G . jilumnlifera, F. v. M., aim, 1859). Murteree. A form 

 with narrow leaves and almost glabrous achenes, thus showing 

 an approach to G. porphyroglossa, F. v. M., but the rays of 

 our specimens appear to be white, and they have neither the 

 hairiness nor the broad-cuneate leaves of porphyroglossa. 

 (Growing in tufts on the flooded ground 4 or 5 inches high.] 



Galocephalus platycephalus, Benth. Mirra Mitta Creek; 

 Kanowana. The outer bracts of the partial heads are about 

 12 : they have yellow, somewhat spreading tips, are woolly 

 along the midrib, and are affixed at the base of the conical 

 partial receptacle, which has a short stipes. The inner bracts 

 of the partial heads are nearly as numerous, very deciduous, 

 with minute yellow tips and no wool ; flowers in each partial 

 head 16-20, united among themselves by the pappus of 7-10 

 weak, flexuose bristles with long distant barbs, penicillate 

 at summit, and united at the base in a ring. When the 

 compound heads are in full flower, the partial heads show 

 out quite distinctly. [This plant grew in great masses, and 

 the bright yellow flowers were quite dazzling in the sunlight. 

 It is distributed over a wide area, and grows into a small 

 bush from 12 to 18 inches high.] 



Gnephosis cyathopappa , Benth. Mirra Mitta Creek; 

 Innamincka. [A common plant, mostly growing on low land 



