Bidens. | LXII. COMPOSITA. 543 
 Szcrr0N I. PrATYCARPAA.—Achenes flat and rather broad. 
. B. tripartita, Linn.; DC. Prod. v. 594. A rather stout erect 
gabrous annual 1 to 2 CR Leaves deeply cut into 3 lanceolate serrate 
‘segments. xTM on terminal peduncles, ereet or somewhat dro ooping. 
` lwoluere hemispherical, 1 to 1 i n. diameter, the outer bracts sometimes 
nearly 1 in. long, leaf-like and esae the inner ones short broad, often 
shining and yellow on their edge. — Florets either all tubular without any ray 
or with a few outer ligulate yellow florets. Achenes T crowned by 2 or 3, 
very rarely 4 awns. uM ren 5, Don; DC. Prod. v 
er 
and more drooping Noir heads, - 
Section II. PsrLocARPAA.—Achenes slender, 4-angled. 
2. B. p ilosa, Linn.; DC. Prod. v. 597. An erect glabrous or slightly 
hairy annual, 1 to 2 ft. high. Branches angular. Leaves thin, pinnately divided, 
or the lower ones sometimes simple; segments 3 or sometimes 5, petiolulate, 
ovate or ovate-lanceolate, 1 to 2 in. long, serrate or rarely lobed. Flower-heads 
few, Bes, rather small, on slender peduncles, Involucral bracts 2 to 3 
lines lon Ra ay-florets white, few and short or sometimes wholly wanting. 
Tice iy 4-angled, the inner ones often 6 to 7 lines 1ng, the outer 
ones shorter.—Benth. FI. Hongk. 183, with the oem addue 
Queensland, Brisbane river, Moreton Bay, F. Mue. e : 
s. Newcastle, R. Brown; Port ee "Ioolls ; Blue Mountains, Miss 
ae Clarence river, B 
Das dy Ya sollen 
: The Species is very common as eed over most warm countries ‘both in the New and 
the Old World, and Sr therefore hk been introduced into Australia by cultivation. 
3. B. bipin nnata, Linn.; DO. Prod. v. 603. A glabrous annual, re- 
sembling B. pilosa, but the leaf-segments are usually again divided into small 
Venly-toothed or lobed segments, the flower-heads are smaller, the involucral 
ess bordered, and the ray- -florets small and yellow 
N. eee Victoria river, F. Mueller; islands of the Gulf of Carpentaria, R. 
E 
Common on the sandy seacoasts, A. Brown and others; islands of 
eg Kee P. Mu gier j 
The species most warm countries both in the New and the Old World, an 
is com 
*ppatently truly SEN in A ela: 
37. GLOSSOGYNE, Cass. 
(Diodontium, F. Muell.) 
ioni bracts few, in about 2 rows, narrow and nearly equal. Recep- 
" late, fertile or sometimes wanting ; disk- 
ruv, ënger? Anthers obtuse at the base. 
Achenes narrow, usually flattened. 
to 4 rigid retrorsely hispid or sth persistent awns.—Gla- 
