Podocoma.] LXV. OoMPOSlt^. 809 



Leaves crowded, oblong-ouneate or almos-t linear, acutely toothed or lobed at the 

 end, narrowed into a petiole, mostly above lin. long, eiliate as well as the petiole 

 and stem with long rigid white hairs. Peduncles much longer than the leaves. 

 Involucral bracts numerous, linear-lanceolate, acute, the inner ones -J^in. long and 

 coloured at the tips, the outer ones shorter, more or less glandular-pubescent as 

 well as the peduncles. . Eay-florets almost filiform, Scarcely exceeding the 

 pappus ; disk-florets about as long as the involucre. Achenes small, obovate, 

 glabrous or silky-hairy, the filiform beak three or four times as long as the 

 achene itself. Pappus fine and white. — Ixiochlamys. cunei/oUa, F. v. M. and 

 Sond. in Liunsea, xxv. 466. 

 Hab.: Border of N. S. Wales, inland. 



16. ERIGEROJSf, Linn. 



(The Greek name for this or a similar genus.) 



Involucre from ovoid to hemispherical, the bracts numerous, narrow, nearly 

 equal or imbricate in several rows. Eeoeptacle flat or slightly convex, without 

 scales. Eay-florets female, numerous, in 2 or more rows either all ligulate or 

 very narrow, or the inner ones shorter and filiform ; disk-florets few or numerous, 

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

 narrow, somewhat flattened, with lanceolate tips or appendages papillose 

 outside, achenes flattened, the margins usually thickened. Pappus of copious 

 capillary-nearly equal bristles. — Herbs. Leaves alternate or radical. Flower- 

 heads solitary corymbose or paniculate. Eay-florets white, pink or purplish. 



A large genus, ranging over the greater part of the globe, but chiefly in the temperate regions 

 9I the northern hemisphere, or in mountainous tropical regions. ■ The genus is very closely 

 allied to Aster, differing chiefly in the more numerous and narrower ray-florets, and even passes 

 into it by almost insensible gradations among the American species, and on the other hand some 

 species of the section Ganotas might also equally well be placed in Conyza. — Benth. 



Section I. Euerigreron. — Female ray-florets all ligulate in many rows. 



Stems erect, branching, leafy, usually annual. 

 Flower-heads hemispherical, solitary or corymbose. Leaves oblong or 



lanceolate. Pappus-bristles numerous, capillary . , . . . 1. E. amhiguus. 

 Flower-heads very small, ovoid in an oblong panicle 2. E. canadensis. 



Section II. Coenotus. — Inner rows or nearly all the female ray-florets filiform and tubular. 



Plant pubescent or hirsute. Flower-heads in a shott panicle. Kay-florets 

 nearly all filiform, the outer ones with a very minute ligula 3. £. Unifolius. 



1. XS. ambigUUS (doubtful), F. c M. in Trans. Phil. Inst. Vict. iii. 68 ; 

 Benth. Fl. Austr. iii. 494. Stems several, erect or ascending, corymbosely 

 branched, shortly pubescent and somewhat glandular, attaining about 1ft. in 

 height. Leaves oblong or lanceolate, entire or with a few coarse teeth. Flower- 

 heads small, in a loose terminal corymb. Involucral bracts narrow-linear or 

 subulate, acuminate, the inner ones about 2 lines long. Eay-florets very 

 numerous and slender, but ligulate, slightly exceeding the involucre ; disk-florets 

 much less numerous, about as long as the involucre. Style and achenes of the 

 genus. 



Hab.: Gilbert Eiver; Herberton, J. F. Bailey ; and several other localities north and south. 



2. E. canadensis (Canadian), Linn; Benth. FL Austr. iii. 495. An erect 

 not much branched annual, of 1 to 3ft., glabrous or hispid with short spreading 

 hairs. Leaves linear, 1 to Sin. long, entire or rarely with a few distant teeth. 

 Flower-heads small and very numerous in a large oblong or rarely corymbose 

 terminal panicle, the peduncles very slender. Involucre ovoid, nearly glabrous, 

 the bracts narrow, acute, about 2 lines long. Eay-florets very numerous, slender, 

 but ligulate, scarcely exceeding the involucre, white ; disk-florets not so many. 



Hab.: Southern localities. 



