42 CAULERPACEAE в 
Chemnitzia (Dec.) Mont. Orb. Dict. ro: 53. 1849. Б 
Phyllerpa Kütz. Sp. Alg. 494. 1840. 
-CAULERPA FLAGELLIFORMIS LIGULATA (Harv.) Weber- 
van Bosse, Ann. Jard. Bot. Buitenzorg 15: 274. 
pl. 24. f. 7. 1898 
Islands of Lobos de Afuera, Mar. 17 and 18, 1907, Coker 124 
b.p. (PLATE 8) and 126. "Growing abundantly on the rocks in | 
shallow places (4. 6 dm.), forming a thick carpet over the bottom ` 
in some places. Bright green, with indistinct striations of darker  . 
color." Fragments of this species, together with those of Rhody- 
menia flabellifolia and Gelidium Sp. were taken from the stomach of 
a green turtle in the same locality, Coker 146 p.p., Mar. 25, 1907. 
Рі.АТЕ 8. Caulerpa flagelliformis ligulata 
Photograph of a specimen (Coker r24) from liquid preservative, reduced to about 
two fifths of the natural dimensions. 
The plants are remarkably similar to the South African 
Caulerpa ligulata of Harvey and of J. Agardh. The fact that 
terete branches occur occasionally intermingled with the distinctly 
flattened ones would appear to be evidence in favor of the correct- 
ness of Madame Weber-van Bosse’s view in uniting Caulerpa 
ligulata with C. flagelliformis. The plants reach a height of 50 
cm. and the flattened branches have a width of 2-5 mm. The 
bases of the fronds are in most cases very distinctly annulate and 
there are occasionally rather regular constrictions in the upper 
flattened parts giving the margin here and there a sinuate-crenate 
character. The lower flattened parts are plainly longitudinally 
striate and furrowed, the dark striations being due chiefly to an 
arrangement of the chloroplasts in lengthwise lines or veins. 
In some of the median and upper parts (the material is preserved 
with formalin) the chloroplasts are conglobate or aggregated, 
giving these areas a flecked appearance. We have noticed also, 
as haveSuhr and Madame Weber-van Bosse, decolorateareas which 
appear to be cut off from the adjacent parts below or above by a 
ridge or partition. The tips of the branches, also, are very com- 
monly decolorate or yellowish, as is often the case in other species 
of Caulerpa. 
This, so far as we are aware, is not only the first record of the ' 
