82 
The South Australian Naturalist. 
turn procumbens, Melilotus indica (common), Medicago saf 
(lucerne), Lotus australis, ^ Swainsona lessertiifolia, KenS 
prostrata, Glycine clandestina, Geranium pilosum var potent!^ 
otdes, Pelargonium australe, Adriana Klotzschii, Dodonaea atte^' 
ata approaching D. viscosa, Pimelea serpyllifolia (fairly abundalr 
m places), Kunzea poniifera (uncommon), Halorrhagis acutmml, 
(several patches between Victor Harbour and Pt. Elliot) Leul' 
pogon Richei, Olea europaea (seeds deposited by starlings one 
or two plants), Lycmm Jerocissimum, Convolvtdus- embescm 
Cynoglossum australe (fairly common, its burrs a nuisance), Ffr- 
bascum virgatum, Veronica distans (Encounter Bay), Datum 
stramonium (common on the strand above high-water ’mark at 
Encounter Bay), Galium Gaudichaudii, Scabiosa maritma (a few 
patches), Scaevola crassifolia, S, suaveolens, Olearia axikris 
Brachycome ciliaris, Senecio odoratus var. obtusifolhis. Helichr\- 
siim leucopsid.ium, H. cinereum, Calocephalus Brozvnii, Imk 
graveolens, Cirsium lanceolatum, Picris hieracioides vai\ sqmu 
rosa, Hypochaeris radicata, Sonchus oleraceiis, S. asper 
toralis. This gives a total of 87 species. 
h 
V. The Granite Formation — The Bluff. 
The Bluff is a rounded hill, 333 feet high, sloping steeply to T 
the sea for nearly two-thirds of its circumference and connected 
with the adjacent country by a lower neck. It Is strewn witliij! 
large granite boulders covering and protecting the softer rockj^ 
beneath. Sir Douglas Mawson informs me that the granite passes 
Into a soda syenite wdiich is in contact below with a metamor- j., 
phosed sedimentary rock which has been called a hornstone. Tie 
soda content is a feature of the hornstones for some distance .^j 
beyond the Igneous intrusions. Glacial debris to some extent 
overlies the rock on the shoulder. The granite in weathering has 
formed a loose soil collecting in substantial pockets between the 
boulders. A filled-in shaft on the landward slope was worked lor !L 
copper. * _ ^ 
On the exposed aspect facing the sea, subject to the fiercest 
stress of weather and so steep that it is sometimes difficult to ob* 
tain a secure foothold, quite a considerable plant community ex- ,[j 
ists. 1 he dominant plants are Poa caespitosa, Correa 
evibria?ithemum australe (especially near the sea), LepidospetM 
gladiatum, Goodenia amplexans , Olearia ramulosa, Senecio odora-U^ 
tus var. obtusifolius, Cassinia aculeata and Calocephalus Browni\^, 
Less common are the following: — Calamagrostis filijormis 
Billardieri, Aira caryophyllea, Avena, Brlza minor, Snh- q, 
pus nodosus, Dianella revoluta, Lomandra sp. (rare), Muehh- j 
beckia adpressa, Rhagodia baccata, Threlkeldia diffusa (rare), f; 
Tetragonia implexicoma, Acacia armata (uncommon), Trifolk^ 
