496 LXII. COMPOSITA. [ Erigeron. 
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culate. Involucre broadly ovoid or almost hemispherical, the bracts narrow, 
acute, in 2 or 3 series. Female florets very numerous, filiform, not so rs 
the pappus, the outer ones usually dilated at the tip into a minute ligula, th 
others all tubular; ounce few. GE Hae short. pares 
small, flat, pubescent.—Conyza ambigua, DC. Prod. v. 381; Sond. in Linnea, 
XXV . 481; Erigeron peel Sch. Bip. in Phyt. Canar. ii. 208. 
Queensland. DO river, Moreton Bay, F. Mueller; Rockhampton, a trouble- 
some weed, p 
N.S. W Port Jackson, age Backhouse ; Clarence river, Beckler. 
Victoria. isa Melbourne. Rolerts 
Australia, Near Adelaide, and Bum places about St. Vincent’s Gulf, Wär F. 
Mueller, and KK 
W. Aus alia, Drummond, n. 130. 
com pia weed, found also in Europe. Some of the above prar speci- 
mehs A ilo ong t o E. albidus ; A. Gray in Proc. Amer. Acad. v. 819 (Conyza albida, 
Willd.), another tropical weed, which, together with other modern epar i I rane set down 
ZE bonariensis, Linn., an error first pointed out by A. Gra s E. albidus has rather 
16. CONYZA, Linn. 
Involueral bracts numerous, narrow, nearly equal or imari in several 
rows. Receptacle flat or slightly convex, without scales, Ray-florets female, 
numerous, in several rows, all tubular, filiform, shorter than in involucre. 
Disk-florets few, hermaphrodite, tubular, 5-toothed. Anthers obtuse at the 
base. Style-branches narrow, somewhat flattened, with lanceolate tips oF 
appendages eeng outside. Achenes small, flattened, the margins usually 
thickened. Pa of copious capillary bristles.— Herbs. Leaves alt Iternate, 
' entire, lobed or lico Flower-heads bes paniculat e. 
in SEH aspect. From Blumea (to which Schult er rip and Miquel propose 4 
r the name of Conyza) it differs in the want of tails to the anthers. 
. Tall T TA — gc, p [oes lanceolate, — AT a i 
Hir annuals dn? bi jenni ials, linifolis. 
Leaves arly entire ie eid nur 
len eia e dëse, SÉ toothed or pinnatifid . (WU ^ 
1. C. viscidula, J/4/.; DC. Prod. v. 383. A tall, erect, branching ` 
