GLOSSARY OF TERMS AND INDEX TO PART I 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 see.ds, 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- 

 positse, 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. 



Peduncle. The stem of a solitary flower, or the main stem of a 

 cluster, 26. 



Pellucid. Almost or quite transparent. 



Peltate. Applied to a leaf or other part when the stem or stalk ia 

 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. 



Pinnae. 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. 



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. Having 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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