PLANTS OF THE ENCOUNTER BAY 
DISTRICT 
Sixth List of Additional Records 
By J. M. BLACK and J. B. CLELAISD 
We published a fifth list of additional 
records in the “South Australian Naturalist” 
for May 31, 1941 (Vol. 21, No. 1, p. 15). 
With the additions in this list, the number 
of species now recorded for this district, ex- 
tending from the road to Tunkalilla Beach 
on the west to Currency Creek on the east 
and embracing the catchment areas of the 
Inman and Hindmarsh Rivers, is 948 together 
with 21 varieties in addition, of which 705 
species and 18 varieties in addition are native 
plants and 243 species and three varieties in 
addition are introduced. 
To show how rich the 11 ora is. 128 species 
of vascular plants were noted in (lower in 
Upper Hindmarsh Valley alone, on the occa- 
sion of the Field Naturalists’ visit there on 
October 10, 1949. 
* Indicates an introduced species. 
Salviniaceae 
Azolla filiculoides var rubra , Murray at 
Goolwa. 
Potamogetonacaea 
Posidonia australis already recorded. Very 
large numbers of fruits, mostly split, 
were washed ashore at Encounter Bay 
between Jan. 6 and 12, 1948, so that 
the shore in places had quite a yellowish 
green tinge. At Esperance, W. Australia, 
in the middle of September. 1950, the 
broad-leafed form in flower (stamens) 
was washed up in abundance. 
Potamogeton crispus , Murray at Goolwa. 
Gramineae 
Aristida Behriana, near Currency Creek, 
Jan. 
Stipa Muelleri , Hindmarsh Tiers in Stringy 
bark country. 
S. elegantissima, near Currency Creek. 
S. plagiopogon , Victor Harbour, Inman 
Valley, in Black, 2nd Edition. 
Sporobolus capensis, already recorded as 
S. indicus, also common at Victor Har- 
bour, etc. 
Agrostis aemula , Inman Valley. 
* Avena saliva. Cultivated Oat, spontaneous. 
*Cynosurus echinatus (not Echinopogon 
ovatus ), Hindmarsh Valley, etc. 
Schisrnus barbatus , Aug. 17. 1947. 
^ Pucci ne Ilia distans, colonising silty sand at 
the Inman Mouth. 
P. stricta , already recorded, is growing on 
spray-exposed cliffs at the Bluff. 
*Vulpia Myuros , Rat’s-tail Fescue. 
* Bromus hordeaceus as well as B. mollis , 
already recorded. 
Chloris tr uncut a, on bank at junction of 
Currency Creek and Murray. 
Lepturus cylindricus , Inman Mouth. 
* Pholiurus incurvus , should be deleted until 
confirmed. 
Cyperaceae 
Scirpus americanus , already recorded. 
Goolwa. 
S. littoralis . Murray R. near the Barrage. 
Jan. 1951. 
Car ex breviculmis , Waitpinga, the Bluff 
(Aug. 22). 
* A raceae 
* Z an ted esc hia act hio pica, Arum Lily, spon- 
taneous in upper part of Inman Valley. 
Centrolepidaceae 
Centrolepis aristata. 
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