GLOSSARY 
141 
Ovate. Shaped like the longitudinal section through an egg with the broad end 
downward. 
Ovule. One of the bodies in the ovary that may develop into a seed. 
Palmate. The leaflets of a compound leaf all arising from the end of the 
petiole, tike the fingers of the hand. 
Panicle. An open cluster of flowers like a raceme but more or less compound. 
Pappus. The hairs, awns, or scales at the base of the corolla or the tip of the 
fruit in a member of the composite family. 
Pedicel. The stalk of a flower in a cluster. 
Peduncle. The stalk of a solitary flower or of a cluster of flowers. 
Perfect flower. Having both stamens and pistils. 
Perennial. Living from year to year. 
Perianth. Calyx and corolla together, especially when they cannot be dis¬ 
tinguished. 
Petal. One of the parts of the corolla. 
Petiole. The stalk part of a leaf. 
Pinnate. Leaflets arranged along the main axis of a leaf. 
Pistil. The seed-bearing organ of a flower. 
Puberulent. Covered with fine and short, almost imperceptible down 
Pubescence. Fine and soft hairs. 
Pubescent. With pubescence. 
Raceme . A flower cluster with one-flowered pedicels along the axis of the 
cluster. 
Ray. One of the marginal flowers in a head in the composite family. 
Receptacle. The end of a pedicel or peduncle to which the flowers or flower 
parts are attached. 
Regular. The parts of each set of organs of a flower the same size and shape. 
Rhizome, An underground stem. 
Runner. A slender and prostrate stem rooting at the end or at the joints. 
Sepal. One of the parts of the calyx. 
Sessile. Without any petiole or stalk. 
Shrub. A small woody plant. 
Simple. Not compound. 
Sinus . The notch between two lobes. 
Smooth. Without hairs or other roughness. 
Spike. A flower cluster like a raceme but with the flowers sessile. 
Siamen. A pollen-bearing organ. 
Sterile. Not capable of producing fruit or pollen. 
Stigma. The upper end of the pistil which, receives the pollen. 
Stipules. Appendages at the base of the petiole of some leaves. 
Style. That part of a pistil between the ovary and; the stigma. 
Taproot. A stout, vertical root. 
Ternate. In 3’s. 
Umbel. An umbrella-shaped flower cluster with a flat top. 
Veins. The conducting strands in a leaf or other organ. 
Vine. A trailing or climbing stem. 
Woolly. Clothed with long, matted, soft hairs. 
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