25 



by Kunth (Enum., i. , 464) . All the pedicellate spikelets which 

 I examined contained a bisexual flower, the same as the sessile 

 ones. 



Stipa arachnojms, Pilger in Engl. Jahrb., xxxv., 70 

 (1904). Nullabor Plain (per Dr. E. S. Rogers); Peter- 

 borough; Enfield; Pinnaroo. Our specimens seem to me to 

 agree with the description in all particulars except that the 

 awn varies in length from 3^ to 7 cm. The numerous young 

 shoots in the tuft consist of subulate, rigid, almost pungent- 

 pointed leaves, hispid with spreading hairs. From among 

 these arise the nodeless stems to a height of 30-40 cm., includ- 

 ing a panicle 15-20 cm. long; the long uppermost leaf -sheath, 

 which has a subulate blade much shorter than the sheath, 

 usually clasps the base of the panicle; the awn is distinctly 

 hairy in the lower part. If the determination is correct, this 

 is the first record for South Australia of this Western Aus- 

 tralian grass. 



Agropyrum scabrum, (Labill.), Beauv. Ferguson Gorge, 

 near Moolooloo (Dist. S; E. H. Ising). 



Stipa scelerata, Behr. Scrub at Enfield (Dist. A). 



Dan<thonia penicillata, (Labill.) F. v. M. Pinnaroo (Dist. 

 M). 



Panicum leucophaeum, H. B. et K. Golden Grove 

 (Dist. A; H. W. Andrew). Probably introduced by stock 

 from some northern part of the State. 



*Ehrharta longiflora, Sm. Moolooloo (E. H. Ising). 



*Phalaris paradoxa, L. Railway reservoir, Hindmarsh 

 Valley (H. W. Andrew). First record for the mainland ; 

 previously found on Kangaroo Island. 



*Alopecurus pratensis, L. Tantanoola (H. W. Andrew). 

 Growing in crops as high as the wheat and oats. 



*Gastridium lendigerum, (L.) Gaudin. Black Forrest; 

 Hindmarsh Valley; roadside north of Port Elliot (H. W. 

 Andrew) ; Wirrabara (Tate Herbarium) ; Mount Barker ; 

 Myponga; Cummins, E.P. Called in England "Nitgrass." 

 First record for South Australia and, as far as I know, for 

 Australia, but must have existed in our State for many years, 

 as I first collected it at Mount Barker in 1903, and the speci- 

 men from Wirrabara in the Tate Herbarium (placed without 

 date under Calamagrostis quadriseta ) must have been 

 gathered several years earlier. This grass bears considerable 

 resemblance to the native G. quadriseta, but the panicle is 

 denser, spike-like, and silvery-shining, at least after flowering; 

 the outer glumes are swollen and shining at the base, the lower 

 one 5-6 mm. long ang! slightly incurved. A native of Southern 

 and Western Europe, and introduced in Texas, California, 

 and Chili. 



