266 List of the Plants of Chile. 
Polytrichum commune. L. Frequent in meadows. and:shady pla> 
ces, onthe mountains. Another resembling the P. hyperboreum, Ra 
Br... grows in similar situations, and particularly in Leona... «oq 
Populus dilatata. Ait. Alamo. — This tree was long, since introdu- 
ced. but is just beginning to draw the attention of land. holders.» It 
ought to age planted almost without limit. It grows rapidly—forms 
good plank for many kinds of work, and its branches make good fuel. 
~ Porliera hygrometrica, Ruiz and Pavon, The tree which is 
-here by the name of guayacan is called in Peru. turucasas 
Its wood is very bard and veined blue and yellow. It serves:forma- 
king combs, balls, and many utensils. Its decoction is antisyphiliticy 
particularly when. united with sarsaparilla.. It is met. with onthe 
- Mountains, _and, on the. banks. of. large rivers on. the plain... The 
true guaiacum (Guaiacum, L,) cannot. grow in these. inaclopaea 
tnindigspansun the Antilles. pains 
ne oleracea. 1. .de erdolaga. Itis found in pe rte ae 
oes in. fields and in gardens. Sown in good soil properly: irrigated, 
it, would, yield its leaves three times as. large, and: of a. higher flavor, 
which,could be used as nutriment.as is the fact. in. other countries: 
Its. decoction. is, said to be a-vermifuge, and it. is employed: snes 
the. form. of: a ptisan, ia eae 
_ Potamogeton striatus, Ruiz-and. Payon.. In the: seeks soho 
ning waters of Taguatagua. It is called: Juchi, and-is of DO use.» 
my coarctata. Ruiz and. Pavon, | 
sctale ‘high and tolerably. shiek, ee 
ee like juice, which is sought with avidity. by bird’ 
and. po by the humming bird. The stalk. when dryis : 
for corks and-for razor Straps. Cut into boards. it makes excellent — 
boxes for preserving insects, an advantage to entomologists in.acoun+ 
try where there is no. cork. From openings. and incisions made in 
the stalk exudes a gum which merits examination, and: anche 
haps form. a substitute for that imported. eeu 
Pozoa coriacea. Lag. On arid heights among aeons 
cage) hoes, Sprengel joins this species with the Aiteriienem Ch 
- . IL donot know whether he is correct.....--28 = 
tical iquasirum. DC. . Algorrobo. Quite.acommonitres 
in stony soils, near pas in the plain. Its elevation: is from: four to 
five yards, the thorns are pesaeaonly very. aa. lioweiaia sometimes 
