22 



In dry sandy spots. The plant bears a close resemblance to 

 some of the capitate Schoe.ni. The long membraneous 

 glumes of the female flowers, along with the protruding 

 style branches, cause the leaves to appear as if surrounded 

 by bracts with reddish filamentose apices. 



112. Scirpvs isdellensis (W.V.F.) n. sp. 



Roots fibrous or shortly creeping ; stems filiform, floating in 

 water ; leaves reduced to a solitary sheathing scale at the 

 base of the stem ; spikelets 2, each 2—3 flowered, but 

 usually perfectly only 1 nut, subterminal (the stem ter- 

 minating in a glume-like point much shorter than the 

 spikelets) ; spikelets narrow-ovate ; glumes obtuse, keels 

 prominent and green, the sides not striate and varying 

 frona a pale brown to a dark reddish brown ; hypogynous 

 bristles 6, unequal, the longest about as long as the nut, 

 retrorsely scabrid ; nut nearly as long as the glume, obo- 

 vate, minutely striate, prominently 3-angled, terminal 

 callosity much thickened and prominent ; style-branches 

 3, free almost to the base ; stamens 2 ; anthers apioulate. 

 Upper Isdell River (W.V.F.). 



Stems 2, 6ins. long. Spikelets mostly under 1 line long. Nuts 

 brownish. 



Always in running water. 



Affinity. S. riparius. Sprengel. 



113. S. ereotus Poiret. 



Isdell, C'harnley, Calder, Lennard Rivers. (W.V.F.) In 

 damp spots. The S. debilis Pursh. 



114. 8. supinus L. 



Fortescue River (.1. Forrest) ; Fitzroy, Hann and Isdell Rivers. 



(W.V.F.). 

 In moist sandy spots. 

 Var. uninodis, Benth. (not so indicated in Flora Australiensis. 



J.H.M. Presumably after Scirpus uninodis Boiss. J.H.M.) 

 Lennard, IsdeU, Charnley, and Calder Rivers (W.V.F.). 

 In wet sand. 



115. S. articulatus L. 



Isdell, Charnley and Calder Rivers. (W.V.F.) 

 In muddy spots. 



116. S. mucronatus L. 



Isdell and Charnley Rivers. (W.V.F.) 

 In wet sandy soil. 



