386 Select Plants for Industrial Culture and 



beler] . In the Himalayas it is cultivated up to 12,000 feet. The 

 tree enjoys everywhere a comparative immunity from insect-attacks, 

 but leaves and fruits were lately attacked severely by a fungus, 

 namely Gnomonia erythrostoma (Fuckel). According to researches 

 by Prof. A. B. Frank, the infested leaves do not drop, and must be 

 mechanically removed in winter and immediately be burned. 

 Cherry-trees have however sometimes also suffered seriously near 

 Melbourne from the attacks of the Cherry-borer, Maroga gigantella; 

 the larvae of this insect infest occasionally also other species of 

 Prunus ; spraying with kerosene-emulsion or other insecticidal 

 mixtures is recommended by Mr. French in his Handbook of 

 Destructive Insects. Pieces of mirror-glass, strung on lines, will 

 tend much to keep sparrows and other predatory birds from cherries 

 and other fruits. Cherry-stones more particularly among the seeds 

 of our ordinary table-fruits might be kept for being strewed about 

 during pleasure-excursions in forests and other uncultivated places. 

 Here in Victoria Cherry-trees and other ordinary hardy fruit- 

 trees should also now be copiously planted in the Australian Alps, 

 to which railways are gradually approaching, so as to provide these 

 fruits and also kitchen-vegetables later in the season for the low- 

 land markets, just as reversedly the Channel-Islands produce the 

 early supplies for London. California exported 60,0, '0 cases of 

 dried or canned cherries in 1887 already. 



Prunus Chisasa, Michaux. (P. angustifolia, Marsh.) 



North-America, west of the Mississippi. On the praries it is only 

 3 to 4 feet high. Fruit spherical, red, rather small, with a tender 

 usually agreeable pulp. Other species with edible fruit occur in 

 North -America, such as P. pumila and P. Pennsylvania (Linne) ; 

 but their fruits are too small, to render these plants of importance 

 for orchard-culture, though they also may become enlarged by 

 rural treatment. Marsh's name is the oldest. Can be cultivated 

 as far north as Christiania in West-Europe. 



Frunus demissa, Walpers. 



California. The Wild Plum of Utah. Worthy of improving 

 cultivation. It fruits abundantly, often when only 2 or 3 feet high. 

 It is of near affinity to P. Virginiana. 



Prunus domestica, 



Plum-tree, Damson-tree, Prune-tree. From the Black Sea to 

 Western China. In the countries at the Mediterranean Sea 

 numerous varieties were cultivated even at the commencement of 

 the Christian era. In Norway this species endures the winter to lat. 

 64 [Professor Schuebeler]. The wood is sought for musical instru- 

 ments and select turnery. For varieties, see Dr. Hogg's admirable 

 " Fruit-Manual " and other kindred works. The " Zwetschen " 

 Variety is early in yield for one of the most profitable of any fruits 



