Sphenogyne. | COMPOSIT& (Harv.) - 137 
XLVIII SPHENOGYNE, R. Br. 
Heads many-fi., radiate, ray-fl. in one row, neuter ; dise-fl. tubular, 
5-toothed, perfect. Recept. paleaceous, the palez scarious, clasping the 
flowers, truncate or very rarely appendiculate at top. Znv.-scales imbri- 
cate in many rows, the inner ones larger, amply membranous at the 
apex. Style-branches truncate. Anthers tipped with a cordate appen- 
dage. Achenes at the base girt with a circle of long, soft hairs, cylindrical, 
scarcely narrowed below. Pappus of about 5, obovate or cuneate, 
obtuse, broad scales, spirally rolled round each other before the flowers 
open, much enlarged on the mature fruit, milk white. DC. Prodr. 5. 
p. 681. 
A large African genus of suffrutices or herbs, strongly scented, with gland-dotted, 
mostly pinnati-partite, rarely serrate or quite entire, alternate leaves. Branches 
mostly ending in naked, one-headed peduncles, in S. pinnata panicled. Corollas 
mostly yellow ; in many species the rays are coppery or dark brown on the lower 
surface, then said to be ‘‘ discoloured ;”’ when both sides are of the same colour, 
they are “‘concolourous.” The name is compounded of o@nr, a wedge, and yuvn, 
here meaning a flower. 
Div. 1. THELYTHAMNOS. Outer involucral scales either without any membranous 
edge, or with a very narrow one. (Sp. 1-38). 
* Herbaceous annuals, with pinnati-partite leaves : 
Rays dark-coloured on the lower side... ... ... (1) anthemoides. 
Rays concolourous (yellow on both sides) : 
Outer inv. scales oblong, obtuse, membr. tipped (2) calendulacea. 
Outer inv. scales acute : 
Inv. scales ovate. Pedune. solitary ... (3) feeniculacea, 
Iny.sc.lanceolate. Pedunc.sub-corymbose (4) pusilla, 
** Herbaceous (annual?), Leaves tongue-shaped, inciso- 
serrate. Pedunc. very slender, thread-like ves” ots... (8). HEipon. 
** Suffrutices, or small shrubs. Leaves various. 
(a) Leaves hairy, silky or tomentose, pinnate or inciso-serrate : 
Lvs. oblong, sharply inciso-serrate, very woolly (6) coronopifolia. 
Lys. pinnati-partite : lobes linear. 
Pedune. very short, or scarcely any: 
Rays concolourous. Lys. crowded ... 
Rays discoloured. Lys. scattered ... 
Pedune. long, scape- 
inate... (0) Dregeana. 
Closely silky-canescent. Inv. scales 2 
lin.-lanceolate... ... ... ©... ... (10) macropoda, 
Pedune. long. Stems shrubby, branched : 
Closely and softly silky-tomentose in 
Oi parte coro eis ae Ge ee: (a) eee, 
Hairy with short, curled, woolly hairs: 
Inv. sc. densely tomentose, acute (12) abrotanifolia 
‘Inv. scales glabrescent, obtuse, j 
membr. tipped ... ... ... (13) subhirsuta. 
(8) Leaves glabrous, pinnate, each lobe tipped with a bristly hair : 
Stems glabrate. Rays discoloured... ... .... -.. (14) dentata. 
Stems hirsute. Rays concolourous... ... ... ... (15) concolor. 
(c) Leaves nearly glabrous, pinnate-parted, the lobes acute or mucronate. 
Stems short, tufted. Pedunc. elongate, scape-like : 
Rays concolourous : 
Leaves naked at base, pinnate beyond the 
middle (16) nudicaulis, 
