110 Bulletin 145 



HIGH-BUSH BLACKBERRY, Rubus allegheniensis Porter (R. 

 nigrohaccus Bailey.) 



This is the common blackberry to most Vermonters, espec- 

 ially prevalent at lower altitudes. Like the red raspberry it is 

 at its best in a new clearing where its tall sharply armed canes 

 make impenetrable thickets. It requires a constant supply of 

 moisture and partial shade for its finest development; and no 

 fruit suffers worse if a drought occurs after the berries are set. 

 Those who are used to the sweet, juicy, spicy, long-tapering 

 wild blackberry of the new clearings feel poorly served by 

 the sour, seedy market berry. Surely there is still plenty of 

 work for the horticulturist among the blackberries. 



RECURVED BLACKBERRY. Rubus recurvans Blanchard. 



This is frequently found and easily recognized by its re- 

 curved stems, often rooting at the tip. The fruit is rather short 

 with numerous large, juicy drupelets. 



MOUNTAIN BLACKBERRY. Rubus Canadensis h. 



The mountain blackberry is the common berry of the higher 

 altitudes (above 1500 ft.) and is even a more vigorous grower 

 than the highbush blackberry of the lower valleys. It is easily 

 distinguished from the latter by its usually smooth canes and 

 smooth leaflets, shorter, sour berries with large drupelets borne 

 in short clusters. 



Another blackberry, Rubus elegantuhis Blanchard, closely 

 allied to the above has slender prickles on the angles of the 

 canes, rather small leaflets in threes, and slender flower clusters. 



