Leptonema 
fasciculatum var. 
ee. 
Lithocystis, 118, 119. 
Allmanni, 118, 119. 
Lithoderma, 69, 123. 
fatiscens, 40, 69. 
Lithophyllum, 3, 9, 22, 103, 130. 
incrustans, 41, 103. 
Lithothamnion, 103, 130 
calcareum, 103. 
uncinatum, 
colliculosum var. rosea, 41, 103. 
enormandi; 7, 3;-21, 103. 
Pls, ©, (11, V, VI. VIL. 
lichenoides, 103. 
lichenoides var. 
AL, 103. 
membranaceum, 103. 
polymorphum, 103. 
HeeOsiphon, 57, 124, 125 
filiformis, 39, 57. 
Laminariae, 57. 
“pusillus, 57. 
Lomentaria, 85. 
articulata, 8, 83, 85, 139. 
clavellosa, 85, 139. 
rosea var. orcadensis, 85, 137, 
139. 
Lyngbya, 48. 
Cuitleriae, 48. 
flacca, 48. 
agariciformis, 
Melobesia, 102, 130. 
agaviciformis, 103. 
calcavea, 103. 
Corallinae, 41, 102. 
farinosa, 41, 102. 
lichenoides, 103. 
membranacea, 103. 
minutula, 41, 102, 118, II1Q9. 
polymorpha, 104. 
pustulata, 102. 
verrucata, 102. 
Mesogloia, 70, 127. 
vermicularis, 70. 
vermiculata, 14, 70, 113. 
VIVeSCENS, 70. 
Microcladia, 100, 135. 
glandulosa, 100. 
Mikrosyphar, 56, 123. 
Polysiphoniae, 39, 56, 105. 
Porphyrae, 105. 
Monospora, 94, 133. 
pedicellata, 11, 40, 41; 94. 
Monostroma, 5, 46, 121. 
Grevillei, 46. 
Grevillei var. cornucopiae, 39, 46. 
Wittrockii, 39, 46. 
Myriactis, 65, 124. 
Haydeni, 65. 
Myriactis 
pulvinata, 40, 65. 
stellulata, 8, 65, 
Myrionema, 68, 112, 124. 
aecidioides, 40, 68, 123. 
Lechlancherii, 69. 
punctiforme, 68. 
saxicola, 40, 68. Figs. 27, 29. 
strangulans, 68. 
strangulans var. punctiforme, 
40, 68. 
Myriotrichia, 64, 125. 
clavaeformis, 64. 
filiformis, 64. Figs. 21, 22. 
Mytilus, 66. 
Naccaria, 79, 135. 
Wigghii, 79. 
Nemalion, 78, 136. 
multifidum, 14, 78, 
purpureum, 78. 
Nitophyllum, 24, 86, 138. 
Gmelini, 86. 
lacevatum, 87. 
punctatum, 86. 
ramosum, 8, 87. 
ramosum var. uncinatum, 40, 87 
uncinatum, 40, 42,86. Fig. 71. 
Odonthalia, 89, 137. 
dentata, I0, 42, 89. | 
iRelwetiaye 7450 027% 
canaliculata, 5, 6, 18, 74. 
Percursaria, 46, 122. 
percursa, 46. Figs. 55, 56. 
Petrocelis, 101, 131. 
cruenta, 45, IOI. 
Peyssonnelia, 101. 
Dubyi, rot. 
Phloeospora, 57, 125. 
brachiata, 57. 
Phycocelis, 68, 87. 
aecidioides, 68, 87. 
Phycodsys, 87> 137. 
rubens, 78, 87. 
Phyllitis, 58, 128. 
fascia, 58. 
zosterifolia, 58, 129. 
Phyllophora, 6, 81, 140. 
Brodiaei, 81, 82, 135. 
epiphylla, 81. 
membranifolia, 81. 
palmettoides, 43, 81. | 
vubens, 81. / 
Phymatolithon, 104. | 
polymorphum, 104. 
Pleonosporium, 94, 133. 
Borreri, 94. Fig. 72. 
