Ecological and systematic studies of Ecological and systematic studies of the Ceylon species of Caulerpa ecologicalsystem00unse Year: 1906 Fig. 10.—C. sertularioides (gm.) howe /. longiseta j. g-. ag. (1 X 1). Geographical —Ceylon ; in many places; in the upper part of the littoral zone (/. bre- vipes and /. umbellata) and also in deeper water (/. longiseta) : Tangalla (/. brevipes) I Weligama (/. longi- seta) ! Galle (/. brevipes, f. umbellata and f. longiseta [Kjellman in Wittr. et Nordst. Alg. exsicc. No. 344])! Colombo (Ferguson, Cey Ion Algae Nos. 3, 40:infl^er6. J. G. Agar
Ecological and systematic studies of Ecological and systematic studies of the Ceylon species of Caulerpa ecologicalsystem00unse Year: 1906 Fig. 10.—C. sertularioides (gm.) howe /. longiseta j. g-. ag. (1 X 1). Geographical —Ceylon ; in many places; in the upper part of the littoral zone (/. bre- vipes and /. umbellata) and also in deeper water (/. longiseta) : Tangalla (/. brevipes) I Weligama (/. longi- seta) ! Galle (/. brevipes, f. umbellata and f. longiseta [Kjellman in Wittr. et Nordst. Alg. exsicc. No. 344])! Colombo (Ferguson, Cey Ion Algae Nos. 3, 40:infl^er6. J. G. AgardhNo. 16,474(/. m6e&;toandNos. 16472, 16473, /. longiseta); Jaffna (/. brevipes and /. umbellata)! Trincomalee (/. longiseta)! Red Sea, Indiak Ocean, Pacific (to the Friendly Islands), Atlantic (from the West Indies to Cape Verde). 6.—CAULERPA FREYGINETII, C. Agardh. f. lata, Weber v. Bosse, Monographic des Caulerpes, p. 313. I have observed this Caulerpa only once, namely, on the south beach of the island of Mandaitivu out- side Jaffna in the north of Ceylon, at a depth of about half a metre at low water. It is a pronounced sand form, which has a strongly and well-developed rhizome creeping in the sand with short coarse assimilators. These are spirally bent with branches entangled, forming as it were small matted balls that stick up out of the sand. C. Freycinetii is very rich in forms and has an extensive distribution. /. lata occurs in the Red Sea, in the GuK of Siam, and the Indian Archipelago as far as the Marian Islands and the Friendly Islands. Reinke mentions that C. Freycinetii occui'S in East India, but does not specify any definite locaUty. In any case it has not been noted before from Ceylon* where, however, it seems to be a rare and accidental constituent, at least in the littoral flora. Geographical distribution.—Ceylon : Jaffna (the island Mandaitivu)! Red Sea, Indian Ocean Pacific, Atlantic (the West-Indies). 7.—CAULERPA GUPRESSOIDES (Vahl) Weber v. Bo
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