392 FOREST CULTURE AND 
two, although the generality of these various black- 
berry-bushes bear their fruits freely enough. 
Rubus Ideeus, L.*—The ordinary Raspberry. Eu- 
rope, Northern and West Asia. It is mentioned 
here to point out the desirability of naturalizing the 
plant in our mountains andon river-banks. It would 
live also on our highest alps, where the native rasp- 
berry (R. parvifolius, L.) produces much finer fruits 
than in our lowlands. The fruits contain stereopten. 
Rubus macropetalus, Douglas.*—California and Or- 
egon. An unisexual shrub. Fruit black, oval-cylin- 
dric, particularly sweet. 
Rubus occidentalis, L.* — The Black Raspberry or 
Thimbleberry. North America. A_ species with 
woody stems and nice fruits, with a glaucous bloom, 
well-flavored and large. It ripens early. 
Rubus odoratus, L.* — North America. A kind of 
Raspberry. A handsome species on account of its 
large, purple flowers. Berry edible. Culture would 
doubtless enhance the value of the fruits of many of 
these Rubi. Hybridizing might be tried. 
Rubus strigosus, Michaux. —N. America. Closely 
allied to the European Raspberry. Its fruits large, 
also of excellent taste. It would lead too far to enu- 
merate other kinds of Rubus, although about a hun- 
dred genuine species occur, which render the genus 
one of very wide dispersion over the globe. 
Rubus trivialis, Michaux.* —Southern States of 
North America. Another shrubby species, with good 
edible fruits, which are large and black. The plant 
will thrive in dry, sandy soil. 
Rumex Acetosa, L.—The Kitchen Sorrel. Europe, 
Middle and North Asia to Japan; also in the frigid 
