OF SOUTH AUSTRALIA. 
313 
peculiarly crowded at the tips, into a dense dark spot-like fascicle. These 
ramelli are about a tenth of an inch long, very many times forked, the 
forkings divaricate; they are not much attenuated upwards, nor are the 
ultimate divisions drawn out into slender fibres, but end in a short obtuse 
point. They are single-tubed, the articulations about three or four times 
as long as broad, but varying in different specimens. The stichidia are 
lanceolate, acuminate, and sometimes ending in a hair-like point, and are 
borne on the ramelli; they contain tetrasporangia set in a double row. 
The .colour is full deep blood-red. The substance is soft, but not gelatinous, 
and adheres firmly to paper in drying. 
South Australia (Investigator Strait), West Australia (King George 
Sound, Fremantle). 
Dosya elongata Sonder. 
Frond 30 cm. or more long, 2 mm. to 3 mm. thick, cartilaginous, firm, 
very much, but irregularly, branched; branches alternate, patent, elongate, 
once or twice alternately divided, the lesser branches simple and virgate, 
laxly set with very patent setaceous ramuli from a quarter to half an inch 
in length. All parts of the frond, except the ramuli, are naked; these are 
naked at the base, but densely clothed in their upper half with minute 
dichotomo-multifid, divaricating, single-tubed, rigid ramelli. Stichidia very 
short and broad, acuminate. 
South Australia ( Encounter Bay, Investigator Strait, Eastern Bays ) , 
West Australia. 
Dosya naccarioides Harvey. 
Frond 30 cm, to 50 cm. in length, cartilaginous, shrinking in drying, 
quite bare of ramelli, undivided, set throughout with numerous undivided, 
elongated lateral branches, which are furnished with a second and third 
series in a pinnate or bipinnate manner. The ultimate branchlets are 
setaceous, from 8 mm. to 15 mm. in length, erecto-patent, naked at base 
but with their upper half densely clothed with very slender and flaccid, 
single-tubed, jointed ramelli. These ramelli are not ^ mm. long, patent, 
quadrifarious, many times dichotomous, with patent axils ; their lower part 
thick with short joints, their upper very slender and attenuated with much 
larger joints. Stichidia born on the ramelli, pedicellate, ovate, acute or 
mucronate. Colour pale-red. 
South Australia (Eastern Bays), West Australia, Tasmania. 
Dosya capillaris Hooker fil et Harvey. 
Frond 10 cm. to 20 cm. high, less than 1mm. thick at the base, attenuated 
upwards and very fine in the lesser divisions. Stem densely tufted, 
inextricable; lesser divisions irregularly dichotomous, set with lateral 
ramuli which terminate in dichotomous, byssoid single-tubed filaments. 
Stems inarticulate below, but all the branches articulate, of eight tubes, 
four striate, the joints three to five times longer than broad. Stichidia 
stalked, lanceolate, tapering into a fine point, frequently terminating in a 
long byssoid filament. Colour a fine purplish-crimson. 
South Australia (Eastern Bays), Tasmania. 
