NO. 1 TAYLOR : PACIFIC MARINE ALGAE 1 1 



protected one and there was no sea running. There was more of the dis- 

 tinctive beach vegetation than farther south, including such characteristic 

 things as Ipomea pes-caprae. Back of the beaches there was a woodland 

 vegetation, then mostly in a leafless state, of such small trees as acacias, 

 and five forms of cacti: columnar, mamillary, opuntioid, cereus, and 

 ocotilla. 



Collecting near high tide line showed that the rocks were colored with 

 Hildenbrandia. In the sand over the rocks Centroceras was, as commonly, 

 a binder plant. There were a fair amount of Caulerpa sertularioides and 

 Padina Durvillaei on the rocks and a variety of things forming cushion 

 and mat vegetations. In the pools Lithothamnieae were evident, but oh 

 the whole there were very few conspicuous algae either in sight or within 

 reach. 



Costa Rica 

 Port Parker, Guanacaste^^ 



Port Parker is near Bahia Salinas, and near the northern boundary of 

 Costa Rica. The coast in general is badly exposed to the pounding of 

 heavy surf, but Port Parker itself is a protected harbor. A small river 

 enters it, and there are a few patches of Rhizophora near the shore, which 

 is for the most part bordered by a thicket of which Avicenna is a large 

 element. Most of the woodland on high ground was not in leaf at the 

 time we visited here. An Acacia with ant-inhabited thorns was conspicu- 

 ous. 



An islet lies at the entrance which, with neighboring rocky ledges, is 

 much beaten by surf, but they are entirely accessible at low tide, particu- 

 larly on the landward side. At the time of our visit an onshore gale made 

 it particularly difficult. Without that obstacle, collecting here might have 

 been even more profitable. The boulders on the beaches were green with a 

 zone of Enteromorphas. The flora in the higher tidal pools was mostly 

 myxophycean, with Entophysalis, Dermocarpa, and Lyngbya semiplena 

 the conspicuous elements. In somewhat lower pools Ulva and Entero- 

 morpha dominated. The rocks were exceedingly slippery. On rather more 

 exposed rocks Bang'ta was conspicuous, and, below, the curious plantlike 

 animal Zoobotrys was to be found in large brown clumps, with the brown 

 alga Colpomenia ramosa supposedly undescribed. Because of the rough 

 weather no dredging was done. 



'^2 Ibid., p. 157, pi. 76, figs. 162, 163. 



