numerous whorled, multifid incurved ramuli. The articulations of the ramuli 
are much shorter in proportion than those of the branches, being usually not 
more than twice or thrice as long as broad; the apices are obtuse. In 
var. 8 the ramuli are sometimes simple, and naked, half an inch long or 
more ; sometimes (fig. 3) pinnated with opposite, simple ramelli. Colour 
a fine, transparent, rose-red, perishing quickly in the air or in fresh water. 
Tetraspores minute, roundish with wide borders, sessile on the lower part 
of the ramuli. Favelle borne on short branches, surrounded by an invo- 
lucre of multifid ramuli, berry-like, consisting of numerous distinct clusters 
of large pear-shaped spores, arranged in globose radiating tufts, densely 
compacted together. Substance at first crisp, soon becoming flaccid, and 
closely adhering to paper in drying. 
ees see 
The description given by Hudson of his Conferva multifida, 
though brief, is so characteristic of the present species that I 
cannot help agreeing in opinion with Smith, that this is really the 
plant he intended, although Mr. Dillwyn, who holds a contrary 
opinion, informs us that an authentic specimen of Hudson’s 
plant, communicated by Dr. Goodenough to Mr. Dawson Turner, 
proved to be Grifithsia equisetifolia. Hudson describes his 
plant as “subgelatinous, much branched, with opposite, long 
branches ; opposite multifid, short, slender ramuli, remote and as 
if whorled ;” characters which agree well with Wrangelia multi- 
Jida, whose ramuli are, I believe, always opposite and not whorled 
in the young plant; they are remote; and the branches are very 
frequently opposite. None of these characters comcide with 
G. equisetifolia. 
The genus Wrangelia, to which, following the recent views of 
the younger Agardh, I remove this plant, was founded by Bishop 
Agardh on a Mediterranean species, which agrees in its fructifi- 
cation with our WV. multifida, but which has an inarticulate, or 
rather an opake, zzternally jomted stem. ‘The structure of the 
favelle, and the disposition of the tetraspores are different from 
what occur in Grifithsia, and the branching of the frond is more 
pinnate than dichotomous. Some fine species of Wrangelia are 
found in Tasmania and New Holland. 
W. multifida, originally discovered on the south coast of Eng- 
land, seems to find its greatest perfection and beauty on the- 
west coast of Ireland. Some of the Inish | specimens would easily 
cover a quarto page. 
Fig. 1. WRANGELIA MULTIFIDA :—uzatural size, 2. Portion of a branch. 3. The 
same, var. 8. 4. Ramulus with tetraspores. 5. Tetraspores. 6. Portion 
of a branch, with a favella. 7. Clusters of spores from the favella. 
