COLLINS. — THE ALGAE OF JAMAICA. 253 



plant of Kuetzing, Tab. Phyc, Vol. XVIII. PI. 56, from New Caledo- 

 nia, is not certain. 



G. crinale (Turn.) J. Ag. Port Antonio, July, 1900, with G. coeru- 

 lescens, P. & B. 



G. rigidum (Vahl) Ag. Port Antonio, July, 1891 ; Montego Bay, 

 June, 1900, P. & B. P. B.-A., No. 784. Appears to be the form 

 known as var. radicans (Bory) J. Ag. 



G. supradecompositum Kuetz. Mo rant Bay, July, 1894, P. & B. 

 No. 227, no locality, H. 



The identification of this form is from a specimen from Fajardo, Puerto 

 Rico, received from Hauck. If G. crinale were taken in a broad sense, 

 it might include this form. 



Catenella Opuntia var. pinnata (Harv.) J. Ag. Manchioneal, July, 

 1900, P. & B. Forming a thin greenish coating on small stones in shal- 

 low water, on muddy bottom near the mouth of a small river. P. B.-A., 

 No. 792. 



Agardhiella tenera (J. Ag.) Schmitz. Morant Bay, July, 1894; Mon- 

 tego Bay, June, 1900, P. & B. 



Solieria chordalis (Ag. ) J. Ag. Washed ashore, Port Antonio, July, 

 1891. P. & B. 



Eucheuma echinocarpum Aresch. Montego Bay, a few small plants, 

 June, 1900, P. & B. 



Gracilaria Blodgettii Harv. Washed ashore, Montego Bay, June, 1900, 

 P. & B. ; only a few specimens, some of which show a tendency to pass 

 into G. confervoides. 



G. caudata J. Ag. Port Antonio, Aug., 1894, P. & B. 



G. cervicornis (Kuetz.) J. Ag. Washed ashore, Morant Bay, July, 

 1894; Manchioneal, July, 1900, P. & B. Near Kingston, Duerden. 

 P. B.-A., No. 787. Some of the plants are quite like Mediterranean 

 specimens of G. armata. The Florida plant described as G. armata by 

 Harvey in the Nereis Boreali-Americana seems to be different, and has 

 not been found in Jamaica. 



G. compressa (Ag.) Grev. Annotto Bay, Aug., 1894, P. & B. 



G. confervoides (L.) Grev. On small stones, St. Ann's Bay, March 

 23, 1893, No. 312, H. Washed ashore, Borden, July, 1894; Montego 

 Bay, Manchioneal, 1900, P. & B. Near Kingston, Duerden. Common 

 and variable. 



G. cornea J. Ag. Washed ashore, Rio Bono, June, 1900, P. & B. 



G. Curtissiae J. Ag. Washed ashore, Annotto Bay, Aug., 1894, 

 P. & B. 



