94 BITLIiETIF 790, U. S. DEPARTMENT OF AGRICULTURE. 



pasted. Ill preparing duplicate or multiple forms care should be 

 exercised to see tliat the forms carboned or otherwise duplicated are 

 properly centered, for if this precaution is neglected the data on the 

 copies will be wrongly lined. 



The forms should preferably be placed loose in their appropriate 

 species folders or fastened by clips thereto, so that they may readily 

 be removed for subsequent attachment to the mounting sheet. 



ADDITIONAL DATA. 



If more notes are obtained than can be conveniently placed on 

 Form 767, such data should be written separately, preferably in 

 single-spaced, short-lined typewriting and on one side only of a good 

 quality of white paper, in order that such information may be filed 

 permanently' on the mounting sheet with the specimen itself and 

 Form 767. If the data are too extensive for this, thej should be 

 written on white cards 4 by 6 inches, notes for only one species on a 

 given card. 



PLANT CATALOGUE. 



The use of a plant catalogue, while no longer mandatory since the 

 adoption of Form 767, oilers many advantages and is to be encour- 

 aged. Many Forest Service collectors make their plant notes in the 

 field in the notebook designated " Plant Catalogue,'' and their Forms 

 767 are made up in the office from these plant-catalogue notes. 



The plant catalogue should contain as much of the following data 

 as it is possible to collect, especially in the case of valuable and abun- 

 dant plants: 



1. Collector's number. 7. Dates when flower stalks are sent 



2. Botanical name. up. 



3. Common or local name, 8. Dates when seeds mature, dissemi- 



4. Date of collection. nate, and germinate. 



5. Exact location. 9. Seed habits — prolific or weak. 



6. Habitat. 10. Distribution and abundance. 



(a) Altitude. 11. Palatability to various classes of 



(&) Kind of soil. stock and period grazed, 



(c) Sloisture conditions. 12. Any striking characteristics. 



((7) Slope and exposure. 13. Remarks as to management, 



(e) Forage type with its forage 



density. 

 (/) Associated species. 



IDENTIFICATION OF THE SPECIMENS. 



The reasons for uniform identification of all plants in Washington 

 were presented on page 90. These determinations are made by ex- 

 perts of the United States Department of Agriculture. Many of the 

 plants, such as grasses, sedges, rushes, willows, hawthorns, lupines, 

 currants, and heaths, go to specialists. Furthermore, plants from 

 particular regions, such as Utah, New Mexico, and the Blue Mountain 



