424 
Miscellanea. 
sessilibus. Cladostephus australis, Ag ! Syst.p. 169.— Grif- 
Jithsia australis, Ag ! spec. 2. p. 135.— Bindera cladostephus, 
Dne! (fide spec, e Cl. Decaisne.) 
George Town, V. D. L., R. Gunn, Esq., n. 1267.—Stem 6-10 
inches long, thicker than hog's bristle in the lower part, and 
about setaceous in the principal divisions, distinctly articulated 
in every part, seven tubed; the main branches naked at base, 
somewhat dichotomous or irregularly multifid, with a fan-shaped 
outline, their upper part and all the lesser divisions densely 
clothed with quadrifarious, horizontally patent, single tubed, 
dichotomous ramelli or filaments, which are about a line in 
length, and are especially crowded at the tips of the branches, 
and there form a dark spot or tuft. Keramidia ovate, sessile on 
the branches at the base of the multifid ramelli. Colour red, 
drying to brown.—This species has to the naked eye so much the 
character of a Dasya , that, at first sight, I had referred it to that 
genus. A closer inspection, however, showed that it could not 
be generically separated from Polysiphonia byssoides, with which 
species the structure of its stem and of its ramelli precisely agrees. 
Both species, indeed, form a close link with Dasya . 
10. Polysiphonia Gunniana , Harv.; caule longissimo, crasso, 
sub-inarticulato, striato, alterne ramosissimo ; ramis primariis 
elongatis, distantibus, cauli similibus, articulatis; secundariis 
ramulis dichotomy multifidis roseis pinnatis; ramulis flabellatis, 
multoties dichotomis, sensim attenuatis, et injfilis monosi- 
phoniis byssoideis, roseis desinentibus ; articulis omnibus dia- 
metro sesqui-vel duplo longioribus; keramidiis (magnis) glo- 
bosis, sessilibus; stichidiis lanceolatis, acuminatis, ad apices 
ramulorum. 
George Town, V. D. L., Ronald Gunn, Esq., n. 1265, 1266.— 
Stem 8-10 inches long or more, more than half a line in dia¬ 
meter at base, gradually attenuated upwards, repeatedly and at 
length excessively branched, inarticulate below, more or less evi¬ 
dently so above. Branches resembling the stem, long, as thick as 
or thicker than hog's bristle, somewhat flexuous, twice or thrice 
alternately divided; the penultimate branches flabellate (the fans 
half an inch or more in breadth) regularly circumscribed, many 
