A COMPLETE LIST OF BRITISH SEAWEEDS. 
tetricum 
thuyoideum 
tripinnatum 
Turneri 
versicolor 
virgatulum. 
Ceramium acanthono- 
tum 
ciliatum 
Deslongchampsii 
diaphanum 
echionotum 
fastigiatum 
flabelligerum 
gracillimum 
microcladia Cocksii 
rubrum 
var. decurrens 
var. proliferum’ (Ce- 
ramium botryocar- 
pum) 
strictum 
tenuissimum (C. nodo- 
sum). 
Corynospora pedicellata 
(Callithamnion pedi- 
cellatum). 
Crouania attenuata, 
Dudresnaia coccinea. 
Griffithsia barbata 
corallina 
Devoniensis 
secundifiora. 
setacea, 
Halurus  equisetifolius 
(Grifithsia  equiseti- 
Folia) 
var. simplicifilum. 
Microcladia glandulosa, 
Ptilota plumosa 
elegans (P. sericea). 
Seirospora Griffithsiana. 
Order CHONDRIEZX 
Polyides lumbricalis (P. 
rotundus). 
Lomentaria articulata 
kaliformis 
ovaiis 
parvula 
reflexa. 
(The five foregoing 
were formerly inclu- 
ded in Chylocladia.) 
Laurencia pinnatifida 
hybrida (Z. cxspitosa.) 
obtusa, 
Order CorRALLINACE® 
Corallina elongata 
officinalis 
Squamata. 
Jania corniculata 
rubens. 
Melobesia agariciformis 
calcarea 
farinosa 
fasciculata 
lichenoides 
membranacea 
polymorpha 
pustulata 
verrucata. 
Order CRYPTONEMIACE 
Abnfeldtia plicata (Gym- 
nogongrus plicatus). 
Catenella opuntia. 
Chondrus crispus. 
Chylocladia 
(Chrysymenia clavel- 
losa@) 
rosea 
rosea). 
Cystoclonium purpuras- 
cens (Hypnxa pur- 
purascens), 
Dumontia filiformis. 
Furcellaria fastigiata, 
Gigartina acicularis 
mamillosa 
pistillata 
Teedi. 
Gloiosiphonia capillaris. 
Grateloupia filicina. 
Gymuogongrus Grif- 
tithsize 
Norvegicus (Chondrus 
Norvegicus). 
Halymenia ligulata 
var, dichotoma 
var. latifolia 
var. ramentacea. 
Kallymenia microphylla 
reniformis. 
Phyllophora Brodizi 
var. simplex 
membrauiiolia 
palmettoides 
rubens. 
Schizymenia Dubyi 
(Kallymenia Dubui). 
edulis (Jridwa edulis). 
Stenogramma ipterrupta 
(Chrysymenia 
' Order GELIDIACEE _ 
Gelidium corneum 
var. abnorme 
var. aculeatum 
var, capillaceum 
var. clavatum 
var. claviferum 
var. confertum 
var. crinale 
var. flexuosum 
var latifolium 
var. pinnatum 
var. pulchellum 
var. sesquipedale 
var, uniforme 
Order HELMINTHOCLADIER 
Helminthora divaricata 
(Dudresnaia  divari- 
cata). 
purpurea (Nemaleon 
purpureum). 
Callophyllis laciniata 
(Rhodymenia laci« | 
niata). 
i 
clavellosa | 
233 
Nemaleon multifidum. 
Scinaia furcellata (Gi- 
nannia furcellata). 
| Order RHODOMELACEZ 
Bonnemaisonia aspara- 
goides. 
Bostrichia scorpioides. 
Chondriopsis dasyphylla 
| (Laurencia dasyphylla) 
tenuissima (Laurencia 
| tenuissima). 
Dasya arbuscula 
Cattlowiz 
coccinea 
corynibifera (D.venusta) 
| ocellata 
punicea. 
Odonthalia dentata. 
Polysiphonia affinis 
Agardhiana 
atro-rubescens 
Brodiei 
byssoides 
Carmichaeliana 
divergens 
elongella 
fastigiata 
fibrata 
fibrillosa 
foetidissima 
formosa 
furcellata 
Grevillii 
Griffithsiana 
nigrescens 
obscura 
parasitica 
Richardsoni 
sertularioides (P. pul- 
vinata) 
simulans 
spinulosa 
stricta 
subulifera 
urceolata 
variegata 
violacea. 
Rhodomela lycopodi- 
oides 
subfusca, 
Rytiphlea pinastroides 
complanata 
fruticulosa 
thuyoides. 
| (The three foregoing 
are now included in 
the genus Polysi- 
phonia.) 
| Order RHopYMENIACE 
Cordylecladia erecta 
(Gracilaria erecta). 
Euthora cristata (Rhody- 
menia cristata). 
| Maugeria sanguinea 
(Delesseria sanguinea). 
Plocamium coccineum. 
Rhodymenia palmata 
var. marginifera 
