- 0 - 
(New Guinea) to include Kvajalein, Majuro and Canton islands. 
The adherent Codium, is somewhat more cerebriform than is 
usual for C. arablcum , but anatomically it clearly reveals 
its relationship to the C. arabicum complex. 
Codium geppil 0. C. Schmidt 24714; 24570; 24788; 24821; 24351; 
24825- These are very similar to the type collection. In the 
Indo-Pacific region a member of the C. arabicum complex and one 
of the C. geppii complex are always found as an integral part 
of the biocoenosis of coral reefs. In the Atlantic a similar, 
but less constant, relationship holds: an adherent form, 
referable to the C. intertextum complex, is invariably present 
on coral reefs, while a repent form, referable to the C. repens 
complex, is found only on certain islands. 
Halimeda : fragilis Taylor 24774. 
Halimeda micronesica Yanada 24768. A good specimen 6-7 cm. tall. 
Halimeda opuntia (L.) Lamx. 24771. 
PHAEOPHYTA 
Ectocarpus indlcus Sonder 2483c. Good material on Turbinaria 
with very long plurilocular sporangia often to 200 u or more. 
Sphacelaria furcigera Ku 
24754 (on old Turbinaria); 24752b. 
Sphacelaria sp. 24723a. This may be a tropical form of S. sub¬ 
fuscs. Setch. & Gard. The specimens have propagulae like S. 
furcigera , but many of them are trifurcate rather than bi~ 
furcate. Plurilocular sporangia, -however, are dominant on this 
material. 
Dictyota friabilis Setchell 24845a; 24828; 24859; 24862; 24868. 
This latter collection is almost without doubt like the type 
from Tahiti. 
Dictyopteris repens (Okam) Borg. 24752 (small amount). 
Pocockiella papenfussii Taylor 24824. 
Pocockiella variegata (Lamx.) Papenf. 24765. 
Turbinaria ornata (Turn.) J. Ag. 24783. 
Turbinaria trialata (j. Ag.) Kutz. 24721. 
BHODOPHYTA 
Gelidtum pusilium (Stackh.) Le Jolis 24736. Typical, small, 
cystocarpic material 3-4 mm. tall. 
