832 LXV. COMPOSITiE. [Hdiptenm. 



from f to lin. diameter including the ray, the outer bracts short, broad, obtuse 

 and usually tinged with brown, the inner with short, broad, scarious, slightly 

 woolly claws and radiating petal-like laminse of 3 to 5 lines, varying from pure 

 white to pale or bright yellow, a few of the innermost sometimes small. Eecep- 

 tacle flat. Florets numerous, all hermaphrodite, a few inner ones sometimes 

 sterile. Achenes glabrous or papillose. Pappus of 10 to 15 plumose bristles, 

 the upper cilia forming a yellow tuft. — Steetz in PI. Preiss. i. 474 ; Hook. Bot, 

 Mag. t. 5604 ; Helichrysum Cotula, Benth. in Hueg. Enum. 65 ; Helipterum 

 simplex, Steetz in PI. Preiss. i. 475 ; H. citrinmn, Steetz I.e. 474 (with yellow 

 involucres) ; H. pusillum, Turcz. in Bull. Mosc. 1851, ii. 80 ; H. pracoso, F. v. M. 

 in Trans. Vict. Inst. 1855, 58 ; H. semisterile, F. v. M. Fragm. ii. 157 ; Helichrysum 

 Oldfieldii, F. v. M. Fragm. iii. 134. 

 Hab.: Southern downs. 



6. H. hyalospermum (another genus), F. v. M. He^-b.; Benth. Fl. Austr. 

 iii. 644. A slender erect glabrous or slightly woolly annual, rarely much above 

 6in. high and often smaller. Leaves narrow-linear, almost filiform. Flower- 

 heads on long peduncles, leafless except a few small scarious scales passing into 

 the outer involucral bracts. Involucre hemispherical when fully out, 4 to 6 lines 

 diameter without the ray, the outer bracts short, sessile, brown or yellow with a 

 more rigid lanceolate centre, the inner with a broad scarious brown claw and 

 yellow petal-like radiating lamina, about 2 lines long. Receptacle flat. Florets 

 rather numerous, all hermaphrodite. Achenes glabrous or papillose, rather more 

 compressed than in most Heliptera. Pappus-bristles 8 to 12, equally plumose, 

 but yellow at the tips. — Hyalospei-mum strictum and H. glutinosum, Steetz in PI. 

 Preiss. i. 477 ; Hyalospermum variabile, Sond. in Linnsea, xxv. 519. ' 



Hab.: Southern localities. 



Some of the smaller specimens, where the thickening of the centre of the outer involucral 

 bracts is less marked, are difficult to distinguish from yellow specimens of H. Cotula. The 

 achenes appear to be larger than in that species (almost transparent in unripe specimens), and 

 the scales on the peduncles do not occur in H. Cotula. — Benth. 



7. H. polyphyllum (leaves numerous), F. v. M. Fragm. i. 85 ; Benth. Fl. 

 Austr. iii. 645. An erect annual of about 1 to Ifft., not much branched and 

 slightly woolly. Leaves narrow-linear, 1 to 2in. long. Flower-heads small, 

 rather numerous, in terminal corymbs. Involucre ovoid or narrow- campanulate, 

 nearly 3 lines long, slightly woolly, the outer bracts appressed without laminae, 

 the inner with broadly scarious claws and white petal-like radiating laminae, 

 rather shorter than their claws. Florets about 10 to 12, all hermaphrodite. 

 Achenes shortly silky-hirsute. Pappus of 15 to 20 plumose bristles. 



Hab.: Basaltic plains from the Brisbane to Peak Range, F. v. Mueller ; Kent's Plains, 

 W. Hill ; plains of the Condamine, Leichhardt ; Eockhampton, Thozet. 



8. H. Strictum (erect), Benth. Fl. Austr. iii. 646. An erect glabrous annual, 

 attaining 1 to 2ft., but often under 6in. Leaves oblong-lanceolate or linear, 

 mostly stem-claspingi the lower ones petiolate, the uppermost small and narrow. 

 Flower-heads solitary on long peduncles. Involucre ovoid or at length campanu- 

 late, i to -^in. diameter, the bracts rigid, closely imbricate, the inner ones with 

 small oblong white radiating petal-like laminae. Florets 3 or 4 only in some 

 heads, 8 to 10 in the larger ones, all hermaphrodite. Achenes densely silky- 



villous. Pappus of 20 or more equally plumose bristles Xyridantlm stricta, 



Lindl. Swan ,Riv. App. 23 ; Pteropogon platyphyllus, F. v. M. in Linnsa xxv 

 418. 



Hab.: Southern localities, towards Cooper's Creek. 



9. H, corymbiflorum (flowers in corymbs), Schlecht. in Linnesa xxi. 448 ; 

 Benth. Fl. Austr. iii. 647. An erect woolly-white corymbose -annual of J to 1ft. 

 Leaves linear or lanceolate, mostly obtuse, soft, the uBper ones few and small. 



