Siebera .] LX. UMBELLIFER^E. 7l9 
Large leafy shrub. Fruits very Hat, with acute edges 1. .S', valida. 
Leafy shrubs. Carpels wholly turgid except a narrow furrow at the com- 
missure. 
Leaves narrow-linear or subulate, all entire. 
Leaves short. Stems short and diffuse, usually glandular-pubescent . 2. .S', ericoides. 
Leaves mostly Jin. or more. Stems .ascending or erect, usually quite 
glabrous 3. .S'. linearifolia. 
Leaves orbicular, obovate, ovate or lanceolate, all entire 4. .S'. Billardieri. 
1.. S. valida (of sturdy habit), Benth. FI. Austr. iii. 855. A tall shrub. 
Leaves linear or linear-lanceolate, narrowed at both ends, 1 to 2in. long, 
coriaceous, faintly 3-nerved. Umbels compound, numerous, forming a broad 
terminal panicle ; rays usually 3 or 4, the central one very short, all hearing 
partial umbels, sometimes again compound. Involucral bracts few and small. 
Calyx-teeth shortly prominent. Petals sometimes slightly imbricate. Fruits 
very flat, about 3 lines broad and 2 lines long, carpels not turgid, with the dorsal 
edge acute, the intermediate curved ribs slightly raised. — Plati/carpidinm ralidnw, 
F. v. M. in Hook. Ivew Journ. ix. 310 ; Platysace valida, F. v. M. Fragm. i. 232. 
Hab.: Burdekin River, F. v. Mueller ; Bowen River. Bowman ; Rockingham Bay, Dallachy. 
2. S. ericoides (Heath-like), Benth. FI. Austr. iii. 356. A small, much- 
branched, divaricate or diffuse shrub, glabrous or more frequently glandular- 
pubescent towards the ends of the branches. Leaves all entire, linear or subulate, 
acute, more spreading than in S. linear) folia, rarely exceeding Ain. and mostly 
shorter. Umbels compound, but small and compact, very shortly pedunculate, 
with few rays. Involucral bracts short, linear. Fruit nearly as in S. linearifolia , 
but less rugose or quite smooth, the carpels usually more turgid and often 
furrowed at the intermediate rib, besides the commissural furrow. — -Trachymene 
ericoides, Sieb. in DC. Prod. iv. 738 ; T. tenuis and T subrelutina, DC. l.c. 
Hab.: Moreton Island, M'Gillivray. 
Var. thy mi folia , A. Cunn. Leaves small (not above 2 lines long), oblong-linear or lanceolate, 
acute, with recurved margins. — Barren spots, forest land, Moreton Bay. A. Cunningham. 
The species is often scarcely to be distinguished from S. linearifolia. -Benth. 
3. S. linearifolia (leaves linear), Benth. FI. Austr. iii. 356. Shrubby and 
glabrous with slender branches, decumbent, ascending, or erect. Leaves all 
entire, narrow-linear or subulate, acute, mostly A to lin. long. Umbels com- 
pound, on slender peduncles, usually exceeding the last leaves, with 3 or 4 or 
rarely more slender rays. Involucral bracts small, linear. Calyx-teeth shortly 
prominent. Disk broad with a thickened margin. Fruit about 1 line long and 
broad, more or less rugose, the ribs scarcely conspicuous ; carpels turgid with 
a broad obtuse back, leaving only a narrow groove at the commissure. — Azorella 
linearifolia, Cav. Ic. v. 57 t. 485 ; Trachymene linearis, Spreng.; DC. Prod. iv. 
73 ; Fischer a linearis, Sm. in Rees Cycl. Suppl. 
Hab : Fraser’s and Moreton Islands and Stanthoipe. 
The species passes almost into S. ericifolia on the one hand and the narrow-leaved varieties 
of ,S'. Billardieri on the other. — Benth. 
4. S. Billardieri (after J. .T. Labillardiere), Benth. FI. Austr. iii. 856. A 
shrub, either low and diffuse or erect and attaining 2 or 3ft., glabrous or with 
minutely pubescent branches. Leaves orbicular, obovate, ovate, elliptical, 
cuneate, or broadly or narrow-lanceolate, acute or obtuse, narrowed at the base 
and almost petiolate or closely sessile and rounded at the base, mostly under Ain. 
long when broad and obtuse, often above lin. when narrow and acute. Umbels 
compound, sessile or pedunculate, but the peduncles rarely long ; rays often 
numerous but sometimes few. Involucral bracts linear, small, or rarely as long 
as the rays. Fruit about 1 line long and broad, more or less tubercular or 
