Pistil, 239.
Pistillaria, 161.
Pistillate, 236.
Pisum, 469, 470, 473.
Pitcairnia, 320.
Pitcher-plant, 409.
Pittosporaceæ, 451, 455.
Pittosporum, 455.
Placenta, 237, 241.
Placochromaticæ, 21.
Plagiochila, 189, 192.
Plagiothecium, 197.
Plagiotropideæ, 21.
Planera, 351.
“Plankton,” 15, 17, 20.
Planogametes, 12.
Plantago, 335, 530, 531, 536, 559.
Plantaginaceæ, 518, 530.
Plantain, 530.
Plasmodia, 4, 5, 7.
Plasmodiophora, 8.
Plasmodiophorales, 6.
Platanaceæ, 455.
Platanus, 456.
Platanthera, 332, 333.
Plate-cultures, 33.
Platonia, 414.
Platycerium, 213.
A Handbook of Systematic Botany · The Wunder Library — complete classics, free to read, with narration.