Marine Algae from Eniwetok — Dawson 
125 
Fig. 30. a , Laurencia nana: Habit of a plant of D. 13725, X 4. b, Chondria polyrhiza: Habit of a plant of D. 13795 
from the under side, X 10. c, Hypoglossum minimum: Part of a tetrasporangial plant of D. 13704 showing rhizoids, 
branching from the midrib, and a sorus, X 6. d, e, Chondria minutula: d. Habit of a plant of D. 13744, X 5; 
s, detail of the apex of a tetrasporic branch of the same showing the emergent tip and trichoblasts, X 35. 
D. 13795. This seems to fit the Collins and 
Hervey description and figures well. Under 
D. 14027 two forms are present, one with 
axes to 450 /x in diameter and with rather 
blunt tips, the other with axes only about 
220 /a in diameter and more attenuate tips. 
They probably represent growth stages. 
Chondria repens B0rgesen; Dawson 1954: 460, 
fig. 62d, e; Dawson 1956: 60 
D. 13932. 
BLUE-GREEN ALGAE 
Anacystis dimidiata (Kiitzing) Drouet and Daily 
1952: 221. Trochiscia dimidiata Kiitzing 
1833: 593, fig. 75 (Germany). Taylor 1950: 
103 (as Gloeocapsa turgida (Kiitz.) Holler- 
bach [Chroococcus turgidus (Kiitz.) Nageli]) 
Fig. 31* 
P. 2830, Igurin Is. scum on rocks in lagoon 
at 50 ft., 3/16/55. 
Coccochloris stagnina Sprengel 1807: 14 (Halle, 
Germany) 
Fig. 31 b 
D. 13893, 14043. P. 1235-6, Bogombogo 
Is. lagoon, 4/22/54; P. 2801, Bokanjoio Is. 
seaward flats. 10/25/54. 
Gomphosphaeria aponina Kiitzing 1836: Dec. 
16, no. 151 (Abano, Italy); Taylor 1950: 
103 
Fig. 31c 
T. 46-316. Not collected again. 
Entophysalis conferta (Kiitzing) Drouet and 
Daily; Dawson 1954: 379, fig. 3r 
D. 13664. 
Entophysalis deusta (Meneghini) Drouet and 
Daily 1948: 79- Coccochloris deusta Mene- 
ghini 1841: 173 (Genoa, Italy). Taylor 
1950: 104 (as E. granulosa Kiitz.) 
Fig. 3 Id 
