INDEX 



195 



Perfect flower, 164 



Perforate, 158 



Perianth, 107, 165 



Pericarp, 180 



Petiole, 113, 157 



Photographs of plants, 54, 59 



Pinnate, 160 



Pinnatifid, 159 



Pistil, 80, 167 



Pistillate, 174 



Plant description, 112 



families, 39, 186 



"sandwich," 146 



study, 69 

 Plantain, 117 



Robin's, 74 

 Plants, arrangement of, 39 



care in gathering, 93-97 



examination of, 104 



exhausted, 103 



gathering, 93-96 



how to identify, 101-112 



knowledge of, 87 



natural arrangement of, 124, 

 131, 144, 148 



photographs of, 54, 59 



scarecrow, 120 

 Plumule, 184 

 Pod, 180 



Poetry and flowers, 21, 60 

 Pollen, 80, 166, 172, 173 



grains, 169 



Polygamous plants, 177 

 Position of labels, 42, 149 

 Preservation of plants an art, 

 18, 68 



fruits, 135-139 



roots, 95 



soon after gathering, 117 

 Press, botanical, 36, 122, 128 



Pressing, haphazard, 18, 120 

 Prevention of insect visitors, 



178 



self-fertilization, 174 

 Prickles, 156, 182 

 Procumbent, 156 

 Prosaic herbaria, 19, 21 

 Proterandrous, 175 

 Proterogynous, 175 

 Purple Gerardia, 125 



Rabbit's-foot Clover, 185 

 Raceme, 163 

 Radical, 158 

 Radicle, 184 

 Rare species, 96 

 Ray florets, 77 

 Receptacle, 78, 179 

 Records of plants, 53, 71 

 Recurved teeth, 178 

 Red Clover, 185, 186 

 Removal of damp papers, 131- 

 133 



dry plants, 134 

 Reniform, 161 

 Reproductive organs, 164 

 Robin's Plantain, study of, 74- 



82 



Rockrose, 117, 130 

 Roots, 69, 95, 155 



pressure of, 125 

 Rose, Wild, 148 

 Roses, 131 



Sagittate, 161 

 Salver-shaped, 166 

 Samara, 181 

 Scale, 162 



Scarecrow plants, 120 

 School herbarium, 18 



