28 



Smilax glauca! Gaylussacia resino.sa is frequently seen 

 having a stunted branchlet of a rose color from the effect 

 of a fungus, 



Avnjjelopsis Veitchii, which is generally green in August, 

 was seen in many instances to have long, running terminal 

 branches of its closely clinging vine with leaves of a bril- 

 liant red color. These were traced back to a point where 

 the stem was much constricted for a quarter of an inch or 

 so and swollen on either side ; as the constrictions ol)served 

 in different vines were always similar, they were probably 

 due to insects. Instances were observed where there was a 

 succession of red leaves from a single root streaming and 

 intertwining to the highest point among perfectly green 

 leaves, borne on stems from other roots. The red-leaved 

 stems were constricted close at the ground. The connecting 

 link of the constriction was often reduced to a slender 

 thread which sometimes becomes desiccated, when the 

 leaves beyond the point fall off ; on the other hand, the 

 injury in some cases is healed hy enlargement and union of 

 the parts before the link is broken. A vine may become 

 red-leaved from other causes. A brick building on its 

 extensive northern wall was mantled with green Ampelopsis 

 variegated with much red color. The red leaves originated 

 from a stem whose roots probably penetrated into gravelly 

 or stony ground where there was a deficiency of moisture. 



The southern side of a church clad with Ampelopsis 

 which was exposed to the full glare of the sun, became a 

 solid red color, also late in August. Undoubtedly this 

 early change was also caused by drought. Another exam- 

 ple of Ampelopsis coloring was peculiar in having an inter- 

 mediate portion of a running branch with small, red leaves, 

 while both below and above on the same stem the leaves 

 were green and of a larger size ! A probable cause of this 

 phenomenon was, that when the now red leaves were green 

 and terminal, they lacked water and became dwarfed and 

 burned by the sun, but with more favorable conditions, the 



