870 LXV. COMPOSITE. [Centipeda. 



8. C. thespidioides (Thespidium-like), F. i. ^[. Fragm. viii. 143. An 

 erect rigid herb somewhat procumbent ; leaves dentate. Flower-heads sessile. 

 Involucre semiovate-campanulate, the bracts with scarious margins. Female 

 florets in few rows, all turgid towards the base. Achenes cylindrical, the pilose 

 lines almost forming a pappus. 



Hab.: Southern localities, inland. 



4. C racemosa (flower-heads in racemes). Hook, in Mitch. Trop. Austr. 

 353 ; Benth. Fl. Austr. iii. 553. Glabrous, with ascending or erect stems, f to 

 l|ft. high. Leaves linear or linear-lanceolate, acutely toothed, slightly narrowed 

 towards the base or the lower ones petiolate. Flower-heads small, in short 

 terminal leafless racemes. Involucral bracts oblong. Eay-florets minute, almost 

 globular. Styles of the disk-florets with very-short obtuse lobes. Achenes very 

 prominently 4 or 5-angled, the angles ciliate. 



Hab.: Maranoa River, Mitchell; Burdekiu and Gilbert Rivers and Newcastle Range, F. r. 

 Mueller. 



The inflorescence is that of Dichrocephala, but the achenes and florets are very differently 

 shaped. — Beiitlt. 



69. SOLIVA, Euiz and Pav. 

 (After Dr. Salvator Soliva.) 

 (Gymnostyles, Jiiss.) 

 Involucral bracts in about 2 rows nearly equal, with scarious margins. 

 Receptacle flat, without scales. Florets of the circumference in several rows, 

 female without any corolla ; disk-florets tubular, tapering at the base, 2 or 

 8-toothed. Anthers obtuse at the base. Style-lobes short, truncate. Achenes 

 of the female florets flattened, bordered by a thick wing, without any pappus, but 

 the wings tapering into the rigid persistent style or produced into two divaricate 

 points or prominent angles, those of the disk usually abortive. — Small diffuse 

 herbs. Leaves alternate, usually finely dissected. Flower-heads sessile. 

 A small genus, apparently limited to the warmer regions of America. 



1. S. anthemifolia (Chamomile-leaved), R. Br. in Trans. Linn. Soc. xii. 

 102 ; Benth. Fl. Amtr. iii. 552. Stems very much shorter than the leaves, 

 forming a dense tuft. Leaves petiolate, 2 to 4in. long, twice or even thrice 

 pinnate with linear or linear-acute, entire or 3-fid segments, the primary ones often 

 distant along the petiole, clothed with long soft hairs or nearly glabrous. 

 Flower-heads closely sessile and clustered on the short stems, nearly globular 

 when in fruit, J to ^in. diameter. Involucral bracts oblong or lanceolate. 

 Achenes numerous, bordered by a thick tranversely rugose wing, which tapers 

 into a rigid style longer than the achene itself, without any lateral angles or 

 points. — DC. Prod. vi. 142 ; Gymnostyles anthemfoUa, Juss., according to Br. I.e. 



Hab.: A bommon weed in southern localities. 



70. CERATOGYNE, Turcz. 



(Alluding to the horn-like style-lobes.) 



(Diotosperma, A. Gray.) 



Involucre cylindrical, of few oblong bracts, green with scarious edges. Eecep- 



tacle without scales. Florets of the circumference few, female, filiform, 2 or 8- 



toothed or shortly ligulate ; disk-florets few, hermaphrodite, sterile, tubular, 3 



or 4-toothed. Anthers short, thin (obtuse at the base ?). Style-lobes slender, 



acute, hispid. Achenes of the ray large, flat, bordered by herbaceous wings| 



