Plocamium, 86. 
coccineum, 86; 1372 . 
Plumatfia, 97, 134, 137. 
elegans, 7, 8, 9, 64, 97. 
Pogotrichum, 57. 
filiforme, 57. 
Polyides, IoI, 140. 
rotundus, 6, Iot. 
Polysiphonia, 6, 25, 33, 45, 90, 
1O5, 134. 
atvo-vubescens, 91. 
Brodiaei, 8, 91, 117, 118. 
byssoides, 92. 
Carmichaeliana, 90. 
elongata, 9I. 
elongella, go. 
fastigiata, 79, 91, 135. 
fibrata, 9o. 
fibrillosa, 91. 
truticulosa, 92. 
nigra, QI. 
nigrescens, QI. 
parasitica, 92. 
spinulosa var. Major, 40, 77, 90, 
LS otis. 
urceolata, 8, 56, 90, 105, 123. 
violacea, 91. 
Porphyra, 76, 135. 
ciliaris (see Erythrotrichea 
carnea). 
coccinea, 40, 76. 
leucosticta, 76. 
linearis, 40, 77. 
umbilicalis var. laciniata, 6, 77. 
vulgaris, 77. 
Prasiola, 45, 120, 121. 
stipitata, 7, 39, 45, 46, 48, 105, 
Fig. 59. - 
Pringsheimia, 45, 121. 
scutata, 39, 45. 
Pterocladia, 79. 
capillacea, 40, 79. 
Pterosiphonia, 92, 134. 
parasitica, 92. 
thuyoides, 42, 92. 
Ptilota, 97, 1345 "306; 
plumosa, 97. 
sevicea, 97. 
Ptilothamnion, 93, 132. 
piuma, 40, 93. 
Punctaria, 58, 128. 
latifolia, 58. . 
plantaginea, 39, 58. 
tenuissima, 58. 
Pylaiella, 63, 123. 
littoralis, 63. 
Ralfsia, 69, 123. 
verrucosa, 7, 69. Pl. II. 
deusta, 69. ee 
Rhizoclonium, 32, 51, 122. 
Kerneri var, endozoica, 39, 51. 
ig. 7a 
riparium, 51. 
Rhodochorton, 95, 132. 
floridulum, 95. 
membranaceum, 95, 130. 
Rothu, 8, 16, 95. 
Rhododermis, 104, 131. 
elegans, 104. 
Rhodomela, 88, 134, 135. 
lycopodioides, 88. 
subfusca, 32, 79, 88, 116, 118. 
Rhodophyllis, 83, 138. 
bifida, 83. 
Rhodymenia, 19, 84, 138. 
bifida, 83. 
ciliata, 84. 
cristata, 83. 
Jubata, 84. 
laciniata, 82. 
palmata, 7, 8, 40, 57. 84. 
palmata var. marginifera, 84. 
palmetta, 84. 
Rytiphloea, 92. 
fruticulosa, 92. 
thuyoides, 92. 
Saccorhiza, 72, 128. 
bulbosa (see Laminaria). 
polyschides, 6, 63, 72. 
Scinaia, 79, 136. 
furcellata, 40, 79. 
Schmitziella, 102, 130. | 
endophloea, 52, 102. | 
Scytosiphon, 59. Pl. VII. 
lomentarius, 5, 7, 8, 33, 59, 65, 
106. | 
lomentarius var. zostericola, 59. 
Seirospora, 97, 133. 
Griffithsiana, 43, 97. 
Spermothamnion, 93, 132. 
barbatum var. mesocarpum, 93. 
Turner, 93. 
Sphacelaria, 66, III, 125. 
bipinnata, 40, 67, I12. 
cirrhosa var. aegagropila, 112. 
cirrhosa var. fusca, 66, III, 
2 
cirrhosa var. pennata, 5, 8, 19, 
50, 06, TTL; Pez: 
filicina, 67. 
fusca, 68. 
plumosa, 67. 
tadicans, “66; Pr2: 
scoparia, 68. 
sevtulania, 68. 
Sphaerococcus,~83, 137. 
coronopifolius, 83. 
