BT E. HAYILAXD. 395 



the stigmas dry and clean, proving that, although the pollen from 

 their own flowers had matured and disappeared, they had not 

 arrived at a condition to utilise it, and, that when they should 

 do so, they would be dependent on the pollen of other flowers. 



Perhaps there are few plants which vary more in their manner 

 of growth than JBoronia pinnata, (Smith). Different localities 

 afford it under such various forms as often to cause one to be 

 uncertain of the species. The colour of the flowers too passes 

 through all shades from rose-purple to white. In this paper I 

 speak of a variety of which specimens have been sent to me at 

 various times, from the more distant parts of Lane Cove. It is 

 nearly white, quite glabrous ; the younger branches almost square. 

 The leaves are pinnate and opposite, generally of seven or nine 

 leaflets, but the terminal leaflet often absent. The costa or 

 midrib of the entire leaf is much dilated, and leaf-like ; but con- 

 tracted where the leaflets join it. The leaflets are small, not 

 exceeding at the most four lines long and one broad, and mucro- 

 nate. The flowers are both axillary and terminal, each of the 

 smaller branches ending in a group of three to six, on pedicels 

 twice the length of the flowers ; the pedicels having minute bracts 

 half way between their articulation with the peduncles and the 

 flowers. The calyx is of four imbricate lobes shorter than the 

 tube, broadly lanceolate, but ending acutely, and is very smaU 

 when compared with the corolla. The corolla consists of four 

 petals, very concave on the inside, six lines long ; very broadly 

 lanceolate, attached to the tube of the calyx. The stamens are 

 eight, rising from the outside of a fleshy, hypogynous disk, swell- 

 ing out at the centre of the filament, but meeting again, and 

 forming a cage round the pistil. The filaments forming the bars 

 of this cage, although densely woolly at their summits, are very 

 slightly so elsewhere ; and while, unlike Fhilotheca, they are 

 sufficiently open to allow insects to enter, it does not appear that 

 even a small insect can come into contact with the stigma. The 

 filaments are suddenly very much enlarged at their summits. 



