IV. 
ALPHABETIC INDEX. 
149 
Sporochnoideae, 73. 
Stilophora, 102, 112.* 
PAPILLOSA, 113.* 
RIIIZODES, 112.* 
Stypopodium fuliginosum, 105. 
Tangle, 82, 90. 
Taonia, 101, 107* 
SCHRCEDERI, 107.* 
Thalassiophyllum, 83, 96.* 
CLATIIRUS, 97.* 
TrICHODESMIUM ERYTHRyEUM, 17. 
Trumpet-weed, 82. 
Udotea, 27. 
Ulya, 5. 
atomciria , 107. 
dichotoma , 109. 
LATISSIMA, 131. 
Ulva pavonia, 104. 
PLANTAGINIFOLIA YAR. TENUIOR, 115. 
plantaginifolia var. tenuior, 115. 
Schrcederi , 107. 
Vaucheria clavata, 16. 
Vaucheki/e, 5. 
Volvox, 4. 
Zonaria, 101, 105.* 
lobata, 105.* 
parvula, 105. 
pavonia, 104. 
plantaginea var. tenuior , 115. 
variegata, 106. 
tenuissima, 115. 
Zostera marina, 31. 
Zygnema, 13, 
