SUGGESTIONS TO PLANT COLLECTORS. 



41 



The following scheme, which can easily be put upon a page 

 of the collector's notebook, is suggested. It may afterwards be 

 duplicated upon the herbarium label, or so much of it as may be 

 desired. For illustration, an actual record is given : 



PLANTS OF NEW MEXICO. 



Place : | mile north of Fort Bayard, road to Pinos Altos. 



Altitude : 6,200 feet. 



Aspect : S. W. 



Slope: gentle (or moderate, steep, precipitous). 



Rock and soil : granite. 



Date: July 27, 190G. 



Collector : 



Frequency of occurrence, and 



Associates : 



Quercus arizonica 

 Juniperus pachyphloea 

 Cercocarpus parvifolius 

 Schmaltzia sp. 

 Juniperus monosperma 



(3S) 

 (IG) 

 (17) 



(-•5) 

 (2) 



Pinus edulis XX (10) 



The latter part of the scheme is designed to put before the 

 eye at once the associates and the absolute as well as relative 

 abundance of a given species. It is simply an adaptation of the 

 Forest Service method of estimating timber. In using the 

 scheme, one to four are represented by dots at the corners of the 

 rectangles. Wlien these are joined by lines to make the rect- 

 angle, we have eight. The diagonals add two more, making ten. 

 For a vegetation, of trees or shrubs, where the latter are not too 

 dense, proceed as follows : 



Select a representative area of the type you wish to collect. 



