GLOSSARY OF TERMS AND INDEX TO PARTI 209 
Overlapping. One piece spreading over another. 
Ovoid. Ovate or oval in a solid form, like an egg. 
Ovules. The parts within the ovary which may form seeds, 25, 
Palmate. A compound leaf, with the leaflets all starting from the 
end of the petiole, 19. 
Palmately lobed, 22. 
Palmately veined. With three or more main ribs, or veins of a leaf, 
starting from the base, 20. 
Panicle. An open, much branched cluster of flowers or fruit, 26. 
Pappus. The down, hairs, or teeth on the end of the fruit in Com- 
posites, as the thistle-down. 
Parallel-veined. With the veins of the leaf parallel; nerved, 20. 
Parted. Edge of a blade separated three fourths of the distance 
to the base or midrib, 23. 
Pedicel. The stem of each flower of a cluster, 26. 
Pedunele. The stem of a solitary flower, or the main stem of a 
eluster, 26. 
Pellucid. Almost or quite transparent. 
Peltate. Applied to a leaf or other part when the stem or stalk is 
attached within the margin on the side. 
Pendent. Hanging downward, 28. 
Pendulous. Hanging or drooping. ; 
Perfect. Said of a flower with both stamen and pistil, 25. 
Fetal. A leaf of the corolla of a flower, 25. 
Petiole. The stalk or stem of a leaf, 19. 
Petiolate. Said of a leaf which has a stem, 20. 
Pinne. The first divisions of a bipinnate or tripinnate leaf. 
Pinnate leaf. A compound leaf with the leaflets arranged along the 
sides of the stem, 19. 
Pinnately lobed, 22; Pinnate-veined, 20. 
Pinnatifid. A leaf deeply notched along the sides in a pinnate 
manner, 23. 
Pistil. The central essential organ of a flower, 25. 
Pistillate. A flower with pistil but no stamens, 25. 
Pith, 12. F 
Plicate. Folded like a fan, 34. 
Pod. A dry dehiscent fruit like that of the pea, 28. 
Points of leaves, 22. 
Pollarding trees, 31. 
Pollen. The dust or fertilizing material contained in the anther, 24. 
Polypetalous. Haviog a corolla of separate petals, 25. 
Pome. An apple-like fruit with the seeds in horny cells, 27. 
Preparation of a collection, 35. 
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