OF SOUTH AUSTRALIA. 
181 
Phaceloca? pus Labillardieri (Mertens) J. Agardh. 
Frond irregularly, alternately compound, pinnate much branched, 20 cm. 
to 90 cm. high, 2 mm. to 3 mm. in diameter. Teeth subulate, twice as long 
as the breadth of the rachis. Cystocarps reniform, transversely below the 
apex of a tooth. Nemathecia clavate, pedicellate. Colour deep-red. The 
commonest species. 
Ail round temperate Australia, Tasmania, and New Zealand. Collected 
in South Australia from Encounter Bay, Investigator Strait, Eastern Bays. 
Phacelo carpus sessilis Harvey. 
Almost no margining wing. Length of teeth exceeding width of rachis. 
Nemathecia clavate-globose, with very short pedicel. Cystocarps not seen. 
South Australia (Eastern Bays) and Victoria, 
Subfamily Stenocladieae Schmitz. 
STENOCLADIA J. Agardh. 
Frond compressed and distichously pinnate or terete and vaguely 
branched. A central axial syphon, articulated, each joint sending out four 
lateral branches; a medullary stratum of elongated articulated threads 
densely interwoven; an intermediate, sometimes wanting, of oblong cells 
loosely disposed ; a cortical of smaller, vertically seriate coloured cells. 
Cystocarps external, spherical, sessile on the sides of the branches, within 
a cellular pericarp, opening by a carpostomium. Tetrasporangia in pod- 
like swollen branches, cruciately divided. 
Stenocladia fur cat a (Harvey) J. Agardh. 
Frond terete, decompound dichotomous, fastigiate, the divisions with 
rounded axils and acute apices. Height 10 cm. to 15 cm. or more, 1 mm. to 
2 mm. diameter. Substance firmly cartilaginous. Colour dark-red. 
South Australia and Victoria. 
Stenocladia Harvey ana J. Agardh. 
Frond compressed above, inconspicuously midribbed, pinnately decom- 
pound. Height 10 cm. to 15 cm. Diameter 2 mm. Firmly cartilaginous. 
Dark-red. 
Western Australia, South Australia, Victoria. 
Stenocladia ramidosa J. Agardh. 
= Areschougia dumosa Harvey. 
Frond dendroid, bushy. Branches slender, dichotomo-multifid. Height 
5 cm. to 8 cm., diameter of stem 1 mm. Substance rigid and wiry. Colour 
very dark red-brown, going black on drying. 
South Australia (Eastern Bays) and Victoria. 
