Herlarium of the British Museum. 41 



Enteromorpha africana^ Kiitz. 

 Ferguson ! 

 Geogr. distr. Cape of Good Hope. 



Ulvafasciata, Delile. 



Harvey ! No. 100. Ferguson ! Kjellman ! Wittr. et 

 Nordst. Alg. Esicc. No. 432. 



Geogr. distr. Indian Ocean (Kurrachee, Murray \, Bombay, 

 Hobson !), Mediterranean, tropical Atlantic, and Pacific 

 (Chili). 



Ulvafenestrata, Post, et E,upr. 



Ferguson ! 



Geogr. distr. Kamtscliatka. 



Ulva latissima, L. 

 Ferguson ! 

 Geogr. distr. Throughout all oceans. 



Ulva reticulata, Forsk. 



Harvey ! No. 83. 



Geogr. distr. Indian Ocean (Kurrachee, Murray !), Philip- 

 pines. 



Bateachospeemej!:. 

 Batrachospermum moniliforme, Roth. 



Ferguson ! 



Geogr. distr. Europe, North and South America, Cape of 

 Good Hope, New Zealand, Falkland Islands. 



Batrachospermum Thwaitesii, Dickie, n. sp. 



" Main branches numerous, flagelliform, pinnated below, 

 with numerous, alternate, flagelliform^ simple ramuli ] apices 

 of rami naked. Whorls of ramelli crowded at base of rami, 

 more distant toward the upper part, interstices with numerous 

 moniliform simple ramelli." — Dickie, 3IS. 



Thwaites ! Herb. Per. C. Province, No. 17, Feb. 1870. 



CONFEEVACE^. 



Cladophora anastomosans, Harv. 

 Ferguson ! 

 Geogr. distr, Australia, Tongatabu. 



Cladophora heteropsis, Kiitz. 

 Ferguson ! 

 Geogr. distr. Algeria, south of France. 



