30 
The South Australian Naturalist. 
P. teretifolia. H. B. Williamson; P. largiflorens^ F.v.M. var. lati- 
jolia, H. B. Williamson; P. trinervis, J. M. Black, in sand; P. 
acerosa, R.Br.; P. densifolia, F.v.M., recorded in Black’s “Flora”; 
P. canahcidata, F.v.M., var. latijolia. H. B. Williamson, Nov.; 
Phyllota pleurandroides, F.v.M., in sand; Dillwynia hispida, 
Lindl., Aug.. Sep.; D. floribunda, Sm., Aug., Sep.; Platylobium 
obtusanguhim. Hook., Sep.; Bossiaea prostrala. R.Br., Sep.;' Goodia 
lotifolia, Salisb., Waitpinga Creek; ^'Ulex eiiropaeus, L., Furze; 
^Trifolhim procumbens, L., Hop Clover; repens, L., White 
Clover; *T. augv-stifolium, L.; '^T. fragifer-um, L., Strawberry 
Clover; '■'^Melilotus indica, All.; ‘^'Medicago tribnloides, Desr., var. 
truncatida, Koch; '^M. denticulata, Willd.; Lotus australis, Andr., 
along the sandhills; Indigofera australis, Willd., along creeks; 
Psoralea patens, Lindl.; Sivainsona oroboiles, F.vM., var. hirsuta, 
j. M, Black, Bluff; S. lessertiifolia, DC.. Encounter Bay, and 
Waitpinga; ^dGcia sativa, L., Common \Atch; Kennedy a pros- 
trata, R.Br., Scarlet Runner; Hardenbergia monophylla (Vent.), 
Benth, Native Lilac; Glycine clandestina, Wendl. 
A STUDY TN WEEDS. 1 
Bv J. M. Black. I 
* t 
More than a year ago the open-air picture theatre on North -j 
Terrace, at the corner of Pulteney Street, was demolished. The H 
seats were removed and holes remain in the tar-paved floor, where 
the legs of the seats were sunk. In these holes, where the tar- i 
pavement has been broken away, a number of weeds have cstab- j 
lished themselves, most of them standing in rows, like flowers in { 
a garden. Strongest in numbers is that common wayside weed, ■ 
Erigeron linifolnis, and some of the plants are 4ft. high, in spite 
of their cramped position. Next in numbers comes Chenopodium 
album (White Goosefoot). Of Stinkwort (Inula graveolens) 
there are only a few specimens at the east end of the floor, and 
several wireweeds (Polygonum aviculare) are spreading them- 
selves over the tar here and there. There is one Cape Dandelion ] 
(Cryptostemma calendAdaceum) . This, with the Stinkwort and ’ 
the Erigeron, represent the composite family. Of grasses there 
is one wheat plant (Triticim sativum), one Bromus madritensis 
and one Setaria verticillata. From two or three of the cracks are 
rising specimens of some shrub, only in early leaf, which I did 
not recognise. If they are due, as they seem to be, to the creeping 
stems of some garden shrub which flourished on the spot before 
the floor of the theatre was laid down, they are showing remark- 
able vitality. All the plants mentioned are introduced aliens. 
