geneemegt ———— p 
z —— REN ` 
Abrotanella.| LXII. COMPOSITA. 555 
the disk apparently smaller, but not seen perfect.— Trineuron scapigerum, F. 
Muell. in Trans. Phil. Inst. Vict. ii. 70, and in Hook. Kew Journ. ix. 301, 
Hook. f. Fl. Tasm. ii. 364 
Tasmania. Crevices of rocks, summit of Mount Lapeyronse, Oldfield. 
46. CERATOGYNE, Turecz. 
(Diotosperma, 4. Gray,) 
Involucre cylindrical, of few oblong bracts, green with scarious edges. 
Receptacle without scales. Florets of the circumference few, female, filiform, 
2- or 3-toothed or shortly ligulate; disk-florets few, hermaphrodite, sterile, 
tubular, 3- or 4-toothed. Anthers short, thin (obtuse at the base?). Style- 
lobes slender, acute, hispid. Achenes of the ray large, flat, bordered by her- 
baceous wings, involute on the margins and produced at the top into incurved 
auricles; those of the disk abortive.— Small annual Leaves alternate. 
Flower-heads small, terminal or axillary. 
The genus is limited to a single species endemic in Australia. 
as the involucre, of which 3 or 4 females and about as many sterile central 
ones. Achenes of the female florets very soon growing out to at least twice 
the length of the involucre, remarkable for their broad herbaceous wings, 
the ineurved ciliate auricles at the top as long as the corolla.—Diotosperma 
Drummondii, A. Gray in Hook. Kew Journ. iv. 275. 
W. Australia, Drummond, 5th Coll. Suppl. n. 56. 
47. ELACHANTHUS, F. Muell. 
luvoluere of few oblong bracts with scarious edges,*nearly equal or with 
lor 2 outer short ones. Receptacle small, without scales. Florets of the 
circumference several, female, tubular, slender but broader towards the base, 
minutely 2. or 3-toothed or almost entire. Disk-florets few, hermaphrodite 
but sterile, slender, 3- or 4-toothed. Anthers short, obtuse at the base. 
Style undivided or with linear hispid branches. Achenes of the female florets 
nearly terete, with a pappus of several narrow-lanceolate chaffy scales; those 
of the disk slender, abortive, with a reduced pappus.— Small annual. Leaves 
cag entire. Flower-heads terminal. ` EEN 
€ genus is limi : i ie in Australia. ith a habi c 
tht AË ml cthee small yaphalies, the florets and anthers, as in Zoe 
topsis, indicae a near affinity with Cotula and Myriogyne, and although pappus scales ate 
Fare in the tribe, they occur also in a few of the subtribe Zanacetee. 
illus, F. Muell. in Linnea, xxv. 411. A slender erect branch- 
LE pus | 
. "8 annual attaining 3 or 4 in. but sometimes much smaller, glabrous or 
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