866 IjXV. COMPOSI*^. [Glossoffyne. 



3. Cr. orthochaeta (awns straight), F. r. M. Vict. Nat. Kov. 1891. 

 Stems attaining the height of 2ft., somewhat woody at the base, few- 

 branched. Leaves crowded along the lower part of the branches and stem, 

 about 3in. long, the lower often reflexed and some undivided, the others 

 pinnately divided, their segments distant, narrow-linear, much pointed, the 

 -uppermost leaves few, remote, undivided, linear. Flower-heads solitary, 

 terminating elongated, simple, peduncle-like branches. Involucral bracts rather 

 numerous, somewhat scarious towards the summit ; floral bracts bluntish, 

 receptacle rather ample. (Florets not sent with specimens.) Achenes 

 numerous, 2 or 3 lines long, compressed, narrow, blackish, streaked ; awns 2, 

 erect, slightly retrohispidulous, often only barbed at the point. The bracts 

 almost concealing the achenes. — -F. v: M. I.e. 



Hab.: Near the South Coen Biver, Stephen Johnson (F. v, M.) 



64. -GALINSOGA, Cav. 



(After Mar. Ma. Galinsoga.) 



(Vargasia, DG.) 



Involucre of few (about 5) broad nearly equal bracts. Eeceptacle conical, 



chaffy, the scales narrow. Eay-florets few, female, ligulate. Disk-florets 



hermaphrodite, tubular, 5-toothed. Anthers obtuse at the base. Style-branches 



acute. Achenes angular, slightly flattened. Pappus of several linear or oblong 



chaffy scales often plumose-ciliate or warning, especially on the achenes of the 



ray. — Herbs with opposite leaves. Flower-heads small, pedunculate. Ray 



white. 



A small genus from tropical and subtropical America, of which one species has spread as a 

 weed of cultivation over many warm and temperate districts of the Old World, and has become 

 introduced as such into Australia. — Benth. 



1. Cr. parviflora (flowers small), Cav.; DC. Prod. v. 677; Benth. Fl. Austr. 

 iii. 542. An erect annual of 1 to 2ft., glabrous or slightly hairy. Leaves petiolate, 

 ovate or ovate-lanceolate. Peduncles slender. Involucre nearly hemispherical, about 

 2 lines diameter. Ray-florets about 5, with a small white ligula ; disk-florets 

 short. Achenes small, slightly hairy. Pappus of the ray reduced to a few 

 minute bristles or entirely wanting, that of the disk-aohenes consisting of from 

 12 to 20 chaffy scales, more or less plumose-ciliate. 



Hab.: A South American species, probably introduced with cultivation. 



65. FLAVERIA, Juss. 



( Flavus, yellow ; a Chilian species produces a yellow dye.) 



Flower-heads collected in dense clusters or compound heads surrounded by a 

 few leafy bracts or floral leaves. Involucres cylindrical or compressed, with 

 few conduplicate dry bracts. Florets few, the female ones often solitary in the 

 involucre with a small ligula, hermaphrodite florets tubular, 5-toothed. Anthers 

 obtuse at the base. Style-lDranches truncate. Achenes somewhat compressed. 

 Pappus none. — Herbs with opposite leaves. Clusters of flower-heads terminal or 

 sessile in the forks. Florets yellow. 



Besides the Australian species, which is endemic, there are a few American ones, one of 

 which, from S. America, is closely allied to the Australian one. — Benth. 



1. T. australasica (Australian), Hook, in Mitch. Trap. Austr. 118 ; Benth. 

 Fl. Austr. iii. 546. " Bogabri," Flinders River, C. F. Plant. An erect rigid 

 perfectly glabrous pale-green annual, usually about 1ft. but attaining sometimes 

 2 or 3ft. in height, with opposite or dichotomous divaricate branches. Leaves 



