236 THE JOURNAL OF BOTANY 
yet at their 
culminating stage (thirty-four species). III. Plants plentifully 
distributed, generally of an invasive character, and at or near their 
culminating stage (eighty-seven species). IV. Plants which linger 
on and are clearly on their way to local extinction (eighty-three 
ies). 
recently gave an account of “a plant botanically known as Com- 
an antidote has been found to the noxious weeds which are so 
known as ‘lalang’ is the great enemy to rubber growth. It was 
the accident of observing that where the blue-flowered creeper 
i t 
was formerly four or five feet in height has been reduced to 
one to two feet only when it starts to flower. But, the joyful 
discovery having been made that here was an undoubted set-back 
e weedy growth that chokes young rubber and is the bane of 
the planter’s life, the question arose: Would the antidote itself 
exercise a prejudicial effect on the rubber? Therefore the speci- 
ens were duly submitted to Kew; and, as was stated to our 
other vegetation.” So it is Lalang—Andropogon caricosus L.— 
rather than the planter, which may take “heart of grace,” 
