PROTEACEZ. 
397 
VI. STIRLINGIA SERIES. 
Stirlingia’ (fig. 236, 237) consists of Proteacee with regular her- 
maphrodite flowers and syngenesious anthers. The perianth consists 
of four leaves, free above and finally reflexed. 
The stamens, inserted on the perianth, consist 
of a free filament, and an introrse two-celled 
anther. Hach cell, opening broadly inwards on 
each side, is united by its edges to the corres- 
ponding cell of the neighbouring anther to form 
a single cavity containing the pollen. On the 
separation of the two half-cells belonging to 
two different anthers, the pollen is freed. The 
gyneceum is composed of a one-celled ovary, 
surmounted by a style which is dilated above 
into a sort of concave stigmatiferous head. 
Within the ovary is a single ascending ana- 
Stirlingia abrotanoides. 
Fie. 236. 
Flower (£). 
tropous ovule, with its micropyle downwards and outwards. The 
fruitis a hairy one-seeded nut. The genus Stirlingia 
consists of some half-score species’ of shrubs from 
Australia; their leaves are alternate and repeatedly 
incised into dichotomous filiform or flattened strips. 
The flowers form capitula, which are solitary, or 
more frequently in simple or ramified racemes. 
This series also contains the genera Conospermum 
and Synaphea, especially remarkable for their ir- 
Stirlingia simplex. 
Erp, 
regular androceum and descending ovule. The confluence of the ad- 
jacent anthers is the chief reason for placing them next to Stirlingia. 
Conospermum’ (fig. 218) has regular or irregular hermaphrodite 
flowers. The perianth is tubular, gamophyllous above; it then 
expands into a limb of four equal or unequal lobes valvate in the 
bud. When the lobes are unequal, the posterior one is largest and is 
reflected into a sort of helmet (fig. 238), forming a sort of posterior 
1 Enpu., Gen. n. 2133; Iconogr., t. 22— 141.—F, Must, Fragm., vi. 248—Bentu. & 
Muissn., Prodr., 325.—Simsia R. BR.,in Trans. F. Mvett., Fl. Austr., v. 356. 
Linn. Soe., x. 155; Prodr., 369; Suppl., 9 (nec 3 Conospermum Sm., in Trans. Linn. Soc., iv. 
PERs.) 213; Exot. Bot., ii. t. 45.—R. Br., in Trans. 
2 Mutssn., in Pl. Preiss. i. 515; in Hook. Linn. Soc., x. 48,153; Prodr., 368; Suppl., 9. 
Journ, (1852), 184,—Linp1., Swan Riv., 30, n. —ENDL., Gen., n. 2132,—Metssn., Prodr., 316, 
698. 
