140 
there that the authorities are hopeless of being able to. cope with it with- 
out aid from the general Government." ‘Che plant not only chokes the 
crops, but its sharp, spine-like leaves are very injurious to horses and 
other animals, as well as to man 
Peru —In Mr. P. D. G. Clark's Report to the Directors 
of the English) | Peruvian Corporation, Limited, on the products of the 
land selected by the Commissioners i in the central territory of Peru, he 
mentions the * Black Walnut." (Juglans mera). hn one of the most 
conspicuous trees of commercial value. He reports: “ This tree, the 
ood of which is so valuable, is most commonly tet with at elevations 
ranging from 2,000 to 4,000 feet. Specimens were found which gave 
a diameter of 49 sachin. with a column-like trunk of about 75 feet.” 
This would be in about 11 degrees south latitude. We know nothing 
very definite concerning the existence of a walnut in South America. 
ate and about 2 inches aT and the nuts as dm more SAM 
wrinkled than those of typical Juglans nigra. It was collected in the 
Lc ache Helene of -— by Weddell, and is preserved in the Paris 
Herbari Thi ould be considerably south of the Peruvian 
balir Ti the Kew: ierburi there are leaves of a Juglans collected 
by Spruce in woods on the upper Pastasa river, in about 2° south 
latitude. He describes it as a spreading tree, sixty feet high, bearing 
an edible fruit, much larger than the common walnut, but he had 
seen it ripe. "The inhabitants called it “ Tocte” These leaves are 
very hairy on the under surface, gs sparingly sprinkled with stellate 
hairs on the upper surface ; and i altogether very much more like 
large examples of the northern A ide Linn., than J. nigra, Linn. 
caña, New Gre nada, we have a s ccimen in young fruit and 
catkins, collected by Kalbreyer, who notes that was there 
enian for its fruit, which had a ve D E. dard shell. This is 
he 
ould venture to describe it as a different species without much 
fuller material. ‘There is also in the Kew Herbarium a leaflet anda 
rtion of the rachis of a leaf, sent by Dr. Ernst, in 1872, as “ found at 
Caracas,” Venezuela. The same botanist, in an account of the woods 
of Venezuela (La Exposicion a acional de Venezuela en 1883, p. 219), 
describes that of the “ Nogal,” which he refers without doubt to ei lal 
cinerea, as dull brown, very s salle to that of the walnut of Euro 
ily 
worked, and much used in cabinet-making. Thus bee is 
trustworthy docet of the — of one or more species of walnut 
in South America, ranging from 10 degrees north to at least 15 degrees 
south latitude. Tis 3 s all the more remarkable because, so far as we 
are aware, no species has been found in Central America south of 
Orizaba in Mexico 
