FOR ARRANGEMENT IN THE HERBARIUM. 
Cystoclonium purpiirascens. 
Callophyllis ; f laciniata. 
Kallymenia ; reniformis. 
Gigartina ; pistillata, acicularis, Teedii, mamillosa. 
Chondrus ; crispus. 
Halymenia ; ligulata. 
Chylocladia clavellosa, rosea, articulata. 
Dumontia ; filiformis. 
Catenella ; opuntia. 
Furcellaria ; fastigiata. 
Grateloupia; filicina. 
8chizymenia ; § Dubyi, ednlis. 
Gloiosiphonia ; capillaris. 
* Long known as Hypnea purpurascens. 
f Formerly Rhodymenia laciniata (Fig. 179). 
J Formerly Chrysymenia clavellosa (Fig. 136), and C. rosea (Figs. 141, i4'2). 
§ Formerly Kallymenia Bubyi (Fig. 213), and Iridcea ediilis (Fig. 214). 
Eamilj 19.-CERAMIACE^ , — Soft and thread-like; rarely rather rigid; jointed; 
transparent ; or wholly or partly coated with 
colour-cells, 
1. Masses o/ spores in external, closed cases (capsules), 
often in pairs ; or rarely naked. 
2. Tetraspores, external, superficial, or half-immersed, 
Microcladia ; glandnlosa. 
Ceramium; rubrum, botryocarpum, decurrens, Deslongcbarapsii, diapbaniim, gra- 
cillimnm, strictnm, nodosum, fastigiatum, flabelligerum, ecbionotum, acan- 
thonotum, ciliatum. 
Dudresnaia; coccinea. 
Crouania; attenuata. 
Ptilota ; plumosa, elegans. 
Halurus ; * equisetifolius, simplicifilum. 
Griffithsta ; barbata, Devoniensis, corallina, secundiflora, setacea. 
CoRYNOSPORA ; f pedicellata. 
Seirospora ; J Griffitbsiana. 
Callithamnion ; pliimula, cruciatum, floccosum, Turneri, barbatum, pluma, arbus- 
cula, Brodigei, tetragonum, brachiatum, tetricum, Hookeri,roseum, byssoidenm, 
polyspermum, purpurascens, fasciculatum, Borreri, affine, tripinnatum, gracil- 
limum, thuyoideum, corymbosum, spongiosum (or granulatum), Eothii, do- 
ridulum, mesocarpum, sparsum, Daviesii, virgatulum. 
^ Formerly Griffithsia equisetifolia (Fis. 244), and G. simplicifilum (Fig. 247). 
t Formerly Callithamnion pedicellatum (Fig. 283). 
+ The bead-like fruit of this plant is incorrectly called tetraspores under Fig. 248. 
The true tetraspores are “ scattered and pedunculate,” as described by Areschoug, 
and such have been lately observed by Dr. Arnott on a specimen from Jersey. 
f 
