354 



below ; style-branches with lanceolate papillose tips as long as 

 the stigmatic part; anthers obtuse at base. 



Siegesbeckia orientalis, L. Owienagin Gap, near 

 Moolooloo (E. H. Ising). A remarkable instance of dwarfing, 

 the specimen being only 3 cm. high, with a single terminal 

 nowerhead. 



*Erigeron canadensis, L. Port Pirie (H. W. Andrew). 

 Growing in marshy ground. 



DESCRIPTION OF PLATE XXXII. 



Cyperus distachyus, All. 1, a spikelet. 2, glume spread 

 open. 3, glume and nut. 4, pistil and stamens. 



Casuarina stricta, Ait. 5, two whorls of the male spike. 6, 

 whorl of 8 male flowers, the 2 ciliate bracteoles of each flower 

 facing outwards. 7, inner face of the stamen (i.e., that which is 

 turned towards the axis of the whorl), the bracteoles and the 

 2 connate perianth-segments having been broken away from the 

 base and lifted upwards by the anther, to which they still cling 

 in the form of a hood. 8, side view of the same stamen. 9, outer 

 face of stamen, showing the 2 bracteoles and the back of the 

 anther. 10, the 2 connate perianth-segments, ax, axis; anth, 

 anther; br, bracteole; per. s, perianth-segment. 



Casuarina distyla, Vent. 11, two whorls of the male spike. 

 12, outer ' face of young male flower, still enclosed in the 2 

 bracteoles. 13, inner face of same, showing the 2 bracteoles and 

 the base of one of the perianth-segments. 14, male flower at a 

 later stage, showing the 2 bracteoles and the 2 perianth-segments 

 partially enclosing the anther. 15, the same in the final stage ; 

 the perianth-segments have fallen and only the persistant 

 bracteoles surround the filament. 



