I
2. SoROSPOKA R a l f s i i Hass.
Plate L X X IX . Fig. 3.
Char. Frond minute, thin, gelatinous, hgaline, somewhat areo-
late; each areola containing 2—8 large, globose, blood-red
granules.
Palmella Ralfsii Harv., in Manual, p. 179.
Hab. Spreading over mosses on Cader Id ris : Mr. Ralfs.
“ Fronds a few lines in diameter, gelatinous, somewhat
areolate, or as if composed of numerous small vesicles massed
together, each of which contains 2—4 or eight large blood-
red granules, which are much larger and of a far deeper colour
than those of P. montana." — Harv.
In the specimens which I have examined of this species,
the granules in each cluster have been usually not less than
six or eight, and between the clusters faint divisions of the
mucous matrix may be discerned, which increases still further
the resemblance which this and the preceding plant bear to
Hcematococcus, and especially Ham. sanguineus.
3. S O R O S P O R A V IR E S C E N S Hass.
Plate L X X V I I I . Fig. 8. a.
Char. Frond green. CeUs in clusters, nucleated, globose.
Of this species I have seen but a very small fragment;
there can be no doubt, however, I think, of its distinctness :
each cell is imbedded in a distinct cavity of the mucous
matrix, the outline of which may be distinctly traced subsequent
to the removal of the cells.
4. SO R O S PO R A G RUM O SA Hass.
Plate L X X X . Fig. 7.
Char. Frond widely expanded, clotted, brich-red, floating.
Globules usually binate, globose, blood-red, and surrounded
by a narrow pellucid limbus, occasionally aggregated.
Palmella grumosa Carm., MS. P. grumosa Harv., in
Manual, p. 180.
Hab. On a rock at the sea side in a small cavity filled
with rain water at Appin ; Captain Carmichael. West
of Ire land: M ‘Colla.
This species would appear to be somewhat anomalous,
agreeing, in the fact of the globules being immersed in a distinct
gelatinous matrix, with the g&mxB Palmella, and according
with Hamatococcus in the circumstance of these being surrounded
with a pellucid margin, and also in its reproduction :
not, however, th a t it is ascertained that the reproduction of
S. grumosa is reaUy distinct from Hcematococcus. I t therefore
connects these two genera closely with each other. In
drying the brick-red colour of the frond changes to a dirty
green, with a slight degree of gloss upon its surface.
47. COCCOCIILORIS Spreng.
Char. Frond mucous, definite, at a later period often effused,
in which are imbedded the globules,/ZZe/ withmatter mostly
green and granular, to he converted into vesicles replete
with globules, and producing new fronds.
Derivation. From k o k k o s , a berry, and fXwpos, green.
The following observations on Coccochloris, which would
appear to be a tolerably well established genus, occur in Meneghini’s
“ Monographia Nostochinearum,” pp. 57, 58.
“ Globuli, in substrato mucoso nidulantes, materie granulari
farciuntur. Non tamen omnes ad evectlorem evolutionem
perveniunt ; nonnuUI enim tantum majores dimensiones con-
sequuntur, eorumque interior substantia in distlnctos glohulos
conflrmatur; globuli hujusmodi propagatione inservientes vel
ad superficiem tantum frondls reperiuntur vel Inordinate et •
sparse in quàcumque frondls regione evolvuntur. In primo
ilio casu a fronde matricali facile extricantur et totidem
novas frondes constituunt quibus ita definita forma semper
inest; in secundo verò primordia ilia novarum frondium a
X 4