342 A. A. HAMILTON. 



has arranged its colony in massed formation. When grow- 

 ing in the sandhill shrubbery, where the foothold is suffici- 

 ently stable to obviate the necessity for a protective 

 alliance, its tufts are smaller and disconnected. 



Drosera binata Labill., is confined to the submerged area 

 where in the running water, its members are collected into 

 small clusters for mutual support, the plants growing in 

 the slack water on either side of the current retaining their 

 individuality. Selaginella uliginosa Spring., which in the 

 Botany district covers large tracts of the drier parts of the 

 swamps, and the sandy slopes on their margins, with a close 

 velvety carpet, is here represented by a few small mats in 

 the peaty soil on the margin. 



Proceeding along the headland towards Maroubra Bay, 

 two diffuse undershrubs Traehymene ericoides Sieb., and 

 Styphelia pinifolia Spreng., and a third, Styphelia virgata 

 Labill., with a more erect habit, are occasional in the 

 shallow soil patches. The Native Fuchsia, Correa speciosa 

 Andr., avoids an isolated exposed position, usually remaining 

 at a distance from the escarpment in the shelter of the 

 open shrubbery, which provides a wind-break without 

 unduly hampering its movements or screening it from the 

 light. With the exception of Correa, all the genera in New 

 South Wales of the family Rutacese, are classed under 

 Ohoripetalse, and this genus is divided, C. alba, the shore- 

 line representative, with free petals, conforming to the 

 general floral arrangement, and C. speciosa, supported by 

 two congeners, adopting an adherent-petalled, tubular 

 corolla. 



Numerous scanty-tufted plants of the Plume-grass, 

 Dichelachne crinita Hook, f., maintain an erect habit in 

 exposed positions on the hillside, the tall stems bending 

 before the storm, but resuming their upright attitude when 

 its force is expended. In a diminutive drainage soak within 



