COCCOCHLORIS. 317
f S
4. Coccochloris hepressa Alenegh.
Plate L X X V I I I . Figs. 4 a. 4 b.
Char. “ Fronds siibhemispherical, depressed, green. Granules
globose or irregular.” — Berk.
Palmella depressa Berk., Glean, p. 19. t. 5. f. 4 .; Harv.
in Manual, p. 178.
Hab. Growing on an old pump at Cotterstock, Northamptonshire,
and constantly moistened by the dripping
of the spout.
“ The irregular granules, some of them larger than others,
and many being agglomerated together, and comprehended
in a common integument, as depicted by the author, have
led to this generic collocation of this species. The comparison
also which the author of this species instituted with the
Palmella terminalis Ag. appears to sustain this opinion.” —
Menegh. When dried the frond is destitute of gloss.
5. Coccochloris Mooreana Hass.
Plate L X X V I I I . Figs. 1 a. 1 b.
Char. Fronds large, globose or lobed, o f a rich dark oeru-
ginous green colour, unaltered in drying, and o f firm
substance. Globules oval, small, tolerably uniform in size
and shape.
Palmella Mooreana Harv., in Manual, p. 178.
Hab. In a boggy hole at Shane’s Castle, the seat of Lord
O’Neill, near Lough Neagh: Mr. D. Moore.
“ The fronds are of an irregular globose form, about an
inch in diameter, tuberculated, and inclining to become hollow
in the centre when old, at which time it floats on the sur-
the colour is dark green, and the substance firm, resembling
tha t of an animal’s liver.”— Moore’s M S . The rich
æruginous green colour of this species, resembling th a t of
many Oscillatorioe, affords a character whereby at once this
species may be distinguished from all its congeners. The
fronds adhere closely to paper, present considerable gloss,
and retain the freshness and depth of their colouring when
dried.
“ I have much pleasure in ascribing it to its acute discoverer
Mr. D. Moore, curator of the Boyal Dublin Society’s
Botanic Garden, who has added so many interesting plants
to the Irish Flora.” -— Harv.
Having only had the opportunity of examining dried specimens,
I am not able to give the measurements of the
globules and vesicles ; I have, however, been able to ascertain
sufiicient of the species to render it quite certain th a t the
reference to the genus Coccochloris is correct. The same remark
applies to the other species which I have placed in
th a t genus.
6. Coccochloris rivularis Hass.
Plate L X X V I I I . Figs. 6 a. b.
Char. Fronds hemispherical, tuberculose, often confluent,
bright green when recent, turning to brown in drying.
Globules small, globose, scattered.
Palmella rivularis Carm., MS. P. rivularis Harv., in Hook.
Brit. Flor. p. 397. ; Harv. in Manual, p. 177.
Hab. In a mountain streamlet, attached to rocks and
stones, Appin: Captain Carmichael.
“ Fronds one fourth or half an inch in diameter, hemispherical,
tubercular, firmly adhering, sometimes cohering
into a broad crust. Granules small, globular, scattered.
Colour vivid green. I t bears a striking resemblance to Choetophora
tuberculosa.” — Carm. M S S . In drying it shrinks
considerably, and fades to dirty brown.*
* In a specimen which I have lately examined of this species, I distinctly
perceived divisions in the mucous substance ; a certain number,
usually two, of the granules, as in the genus Hcematococcus, being invested
with a separate portion of the general substance. It is probable that this
structure belongs to all the species of the genus, and possibly of Ulva also.