Miscellanea . 
425 
times dichotomous, gradually attenuated ; many-tubed below,, 
but less and less compound upwards, and ending in single-tubed , 
coloured, dichotomous filaments, which arc exactly similar to 
those of Dasya . Colour a brilliant rosy red or crimson, as in P . 
elongata rosea . Substance tender, but not very gelatinous, ad¬ 
hering to paper. Capsules very large, seated on the dichotomous 
ramuli, sessile or nearly so, at first ovate, afterwards globose or 
nearly sphterical; the pericarp thin and membranous. Stichidia 
resembling closely those of Dasya , but, in the specimen examined, 
without spores, situated at the apex of the polysiphonious portion 
of the ramulus, and terminating it;—they seem therefore as if 
nestling among the pencilled one-tubed filaments which are pro¬ 
duced far beyond these true apices.—This is a very noble and most 
distinctly characterised species, which probably will mark an 
Australian section of the genus, distinguished by having dichoto¬ 
mous ultimate ramuli terminating in single-tubed filaments. I 
have great pleasure in inscribing it to its discoverer, Mr. Gunn, 
to whom the botany of V. D. Land stands so largely indebted. 
11. Polysiphonia Lawrenciana , Harv.; caule longissimo ; crasso, 
inarticulato, striato, alternk ramosissimo ; ramis primariis, se- 
cundariis, tertiariisque inarticulatis; tertiariis ramulis dicho- 
tome multifidis roseis pinnatis; ramulis congestis, globoso- 
penicillatis, parum attenuatis multifidis, in filis monosiphoniis 
dichotomis roseis desinentibus ; articulis ramulorum diametro 
equalibus, filarum sesquilongioribus; stichidiis lanceolatis mu- 
cronatis, ad apices ramulorum. 
George Town, V. D. L., R . Gunn, Esq., n. 1268.—Stem 8-10 
inches long or more, thicker than bristle below, about as thick 
above, excessively branched in an alternate manner, in all parts 
opake, veiny, and therefore seemingly striated, without any ex¬ 
ternal indications of joints. Branches of the first, second, and 
third orders alternate, erecto-patent, rather distant, all inarticu¬ 
late; those of the third order pinnated with dichotomously 
multifid glomerate or pencilled ramuli, each pencil 1-2 lines in 
breadth, closely circumscribed and somewhat globular, consisting 
of robust main trunk set with four or five distichous once-forked 
many-tubed ramuli which terminate in a pencil of dichotomously 
VOL. II. no. xi. 2 H 
