io8 



C. SKOTTSBERG 



Fig. 19. The interior of Quebr. Piedra Agujereada. — Photo K. Backstrom Aug. 191 7. 



by a hole (aguja, needle). The exterior section (see Skottsb. 3 fig. 33 on p. 890) 

 has the same character as in the valleys mentioned, while the interior is filled with 

 fine forest covering the ridges on both sides and above 400 m very damp and rich 

 in tree-ferns. The vegetation cover acts as a sponge and only a minor part of 

 the precipitation will feed the stream, its lower course being dry during the summer; 

 in winter the water rushes down to the sea as a cascade, mentioned by Anson 

 ("The Spout") and referred to in Instrucc. naut. p. 227, where it is said to run quite 

 dry at the end of the winter. 



El Rabanal (rabano = Raphanus sativus, formerly abundant here) is very unlike 

 the other valleys with its wide, almost level floor; in Johow's time it was densely 

 wooded, but in 1905 it was ravaged by fire, and the forest never came back. In 

 March 1917 the dry soil was covered with the dead stalks and innumerable young 

 rosettes of Silybum niariajium (see Skottsb. 3 fig. 34 on p. 891). PI. 86 (I.e.) shows 

 the same spot in August, when a vigorous new growth had sprung up. The shadow 

 across the Silybetuni indicates the streambed. There are a few dying lumas, maqui 

 is plentiful in the quebradas, succeeded toward the interior by degraded luma-canelo 

 forest. Higher up are better stands (I.e. PI. 94: i). 



Rising at an angle of about 85° Pta Bacalao forms the end of the Centinela 

 ridge. It got its name because the bacalao ("stock-fish"), the commonest and most 

 valuable fish in these waters (fig. 100), is very abundant here. 



