18 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 12 



falls dropped within view from the boat. The landing place did not prove 

 to be a good station for algae, but several species of ferns were collected 

 in the woods behind the beach. The shore rocks yielded only a Hypnea in 

 any quantity, except for the ubiquitous encrusting Hildenbrandia and a 

 couple of Lithothamnieae. In the splash zone there was a good deal of 

 Bostrychia. The minute species which formed a more or less sand-filled 

 mat on some of the rocks gave a few small species to the record ; the most 

 important by far, being probably the first American record of the genus, 

 was Lejolisia (L. colombiana), of which unfortunately only a small 

 amount was segregated, and also a small amount of an apparently new 

 Dudresnaya (D. colombiana). The island lies just north of the depart- 

 ment of Narino, but by the best available source of information (Arenas 

 Paz n. d.) appears to be administered by the Departemento del Valle. 



Ecuador 



Bahia San Francisco, Esmeraldas^^ 



The approach to this station from the sea was exceedingly attractive. 

 In entering, a village lay on the right hand, the houses built on high sup- 

 ports, mostly thatched, standing well apart with grassy areas between. 

 Trees, mostly cocoanut palms, formed the immediate background, with a 

 hill behind. On the other side were some wooded points, the nearest with 

 a grove of tall cocoanut palms far overtopped by a few widely spaced, 

 much taller trees on very high stilt roots. A small stream came down into 

 the bay. The shores yielded very little in the way of algae, for they were 

 broad, low, and muddy. On the roots of mangroves the appropriate vege- 

 tation of Caloglossa, Catenella, and Bostrychia was well established. 

 Dredging yielded mostly mud and leaves brought down by the stream. 

 One interesting Jjnphiroa found here (J. franciscana) appears to be un- 

 described, and also one small Gelidium (G. sclerophyllum). 



IsLA La Plata26 



This island, like so many other stations, gave good promise, yet on 

 close inspection proved to have a type of rock inhospitable to large marine 

 algae. The wave conditions, the current, and freedom from mud or fresh- 

 water intrusion seemed ideal. Except for a few crustaceous corallines and 

 some algae in shells, only a matlike growth of Centroceras was seen on 

 the rocks. Dredging proved hardly more profitable, and the most interest- 

 ing item was the same Chondria platyclada secured at Puerto Culebra. 



25 Ibid., p. 168, pi. 89. 



26 Ibid., p. 168, pi. 90, fig. 192. 



