546 LXII. COMFOSITA. [Tagetes. 
Tun Brisbane river, F. Mueller ; Neerkool Creek, Bowman 
N. S. ie are — spreading on the Hunter and Nepean ri nF 
The specie f S. American origin, introduced with cultivation into jo z 
several of the Geier districts of the Old World. 
40. ENHYDRA, Lour. 
Tetraotis, Reinw.) 
A of 4 broad SCT, bracts closely eure opine the florets, the two 
outer ones larger than the inner ones. Receptacle conical, Sg the seales 
enclosing the florets and s M Ray-florets in several r s, female, with 
very short 3-toothed ligulas ; disk-florets ae oi but Wes sterile, 
tubular, 5-toothed. Anthers obtuse at the bas Style-branches flattened, 
scarcely truncate. Achenes of the ray fattened, ‘with obtuse edges, without 
any pappus, those of the disk usually abortive. —Herbs with opposite leaves. 
Flower-heads sessile in the forks of the stem or in the axils of the leaves. 
The genus is limited to a very few species from tropical Asia, w hich m may in ndeed be 
ti of one, and a few others from S. America. The Aus rr geg is evidently the 
e as the common Indian 
1. E. paludosa, DC. Prod. v. 637. Glabrous or slightly scabrous- 
pubescent. Stems elongated, creeping and rooting in the m mud, the flowering 
branches ascending, simple or forked. Leaves shortly ee oblong 
lanceolate, coarsely toothed or nearly entire, narro owed a base, or some- 
times, especially those under the forks, slightly e SÉ petiole often 
dilated-at the base and stem-clasping. Tnvolucral ES broadly ovate, the 
2 outer larger ones 3 to 6 lines long, exceeding the flor ts.—Tetraotis pall- 
dosa, Reinw. in Blume, Bijdr. 8 ; Enhydra int and E. 
DC. Prod. v. EE E. Woollsii, S Mosi Fragm. i 
e Head, Bauer; Manly 
N. S. Wal In marshes, sometimes GE under ee iod 
beach, Woolls. "Met in Leichhardt s collectio distinct 
The species : € in Ki In = a ru the Archipelago and Gel not be really 
from the original Z. fluct an specimens have the leaves puo 
TOW ops at the base than is eal i in EN de ihc the same form occurs also in 
41. FLAVERIA, Juss. 
Flower-heads collected in dense clusters or compound heads surround 
by a few leafy bracts or floral leaves. Involucres cylindrical or compres» — 
with few conduplicate dry bracts. — Florets few, the female ones often solita! 
in the involuere with a small ligula, hermaplirodite florets tubular, 5-toothe hat 
GE obtuse at the base. Style-branches truncate. chenes a 
compressed. .Pappus none.—Herbs with opposite leaves. dedii 
EE beds terminal or sessile in the forks. - Florets yellow. 
Besides the Australian species, which is endemic, there are à few American 
which, from S. America, is closely allied to the Australian one. 
ones, oue of 
E, Hook. in Mitch. Trop. Austr. 118, An ereot i 
perfectly KE pel green annual, usually about 1 ft. but. attaining ndi - 
times 2.or 3 ft. in height, with opposite or dichotomous divaricate bra t 
Leaves linear or dissi dicli 1 to 2 in. long, entire or with ke 
