Directions for Collecting and Preserving Plants and for 

 the Formation of an Herbarium. 



1. A complete specimen will represent the root, stem, leaves, flowers, and 

 fruit. 



2. Collect small plants, like the Violet, entire. 



3. When the leaves of the stem and the root differ, as in some Buttercups, 

 get both. 



4. If the staminate and the pistillate flowers are on different plants, as in 

 Thalictrum (Rue), or on different parts of the same plant, as in the Butternut, 

 look for both. 



5. Plants of the Mustard Family (Cruciferas) and the Parsley Family 

 (Umbelliferae), with all Rushes and Sedges, are classified by the frtiit. 

 Grasses may be gathered \\\ flower. 



6. Ferns should be in fruit, and when the sterile and fertile fronds differ, as 

 in Osmunda, get both. 



7. Thick roots and stems can be split in two, and one half only be pre- 

 served. 



8. Arrange the plant to be dried in a folded sheet of thin, bibulous paper, 

 and do not disturb it until dry. Let thick pads of drying paper alternate with 

 these single sheets, and then place the whole under pressure. Change the 

 drying pads every day or two, and dry as rapidly as practicable. 



9. These dried plants attached to sheets of paper by strips of surgeon's 

 plaster or by glue, fully ticketed with name, when and where and by whom 

 collected, and arranged in Orders and Genera as in the Manual, constitute an 

 Plerbarium. 



Summary of Species. 



Polypetals 323 



Gamopetals 312 



Apetals Ill 



Angiosperms 746 



Gymnosperms 15 



E.xogens 761 



Endogens 335 



Phaenogams 1096 



Cryptogams 65 



Total number of species in the Flora proper 1161 



Cultivated species and genera . . .* 115 



A^ll 



