344 GLOSSARY OF BOTANICAL TERMS 



Nerved. Parallel-veined, as the leaves of some trees. 

 Nut. A hard, unspiitting, usually oiie-seeded fruit. 

 Nutlet. A small nut. 



Obcordate. Heart-shaped, with the stem at the pointed end. 



Oblanceolate. Lanceolate, with the stem at the more poifited end. 



Oblona. Two to four times as long as wide, with the sides somewhat parallel. 



Obovale. A reversed ovate. 



Odd-pinnate. Pinnate, with an end leaflet. 



Opposite. With two leaves on opposite sides of a stem at a node. 



Orbicular. Circu'pr in outUne. 



Oval. Broadly ellipiical. 



Ovary. The part of the pistil of a flower containing the ovules or future seeds. 



Ovules. The parts within the ovary which may form seeds. 



Palmate. A leaf with the veins on the leaflets all starting from the end of the 

 petiole. 



Palmately veined. With three or more main ribs, or veins of a leaf, starting from 

 the base. 



Panicle. An open, much branched cluster of flowers or fruit. 



Parallel-veined. With the veins of the leaf parallel; nerved. 



Parted. Edge of a blade separated three fourths of the distance to the base or 

 midrib. 



Pedicel. The stem of each flower of a cluster. 



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



Petal. A leaf of the corolla of a flower. 



Petiole. The stalk or stem of a leaf. 



Petiolate. Said of a leaf which has a stalk. 



Pinnce. The first divisions of a bipinnate or tripinnate leaf. 



Pinnate leaf. A compound leaf with the leaflets arranged along the sides of the 

 stem. 



Pistil. The central essential organ of a flower. 



Pod. A dry dehiscent fruit hke that of the pea. 



Pollen. The dust or light powdery grains contained in the anther. 



Polypetalous. Having a corolla of separate petals. 



Pome. An apple-like fruit with the seeds in horny cells. 



Raceme. A flower-cluster with one-flowered stems arranged along tlie peduncle. 



Samara. A winged fruit; a key fruit. 



Scape. A peduncle rising from the ground or from a subterranean stem. 



Serrate. Having a notched edge, with the teeth pointing forward. 



Sessile. Without stem. 



Shrub. A bush-like plant; one branching from near the baso. 



Spike. An elongated cluster of flowers with the separate blossoms about sessile. 



Stamen. One of the pollen-bearing or fertilizing parts of a flower. 



Stifjma. That part of a pistil which is fitted to receive the pollen. 



Stipe. The stalk of a pistil. 



Stipules. Small blades at the base of a leafstalk. 



Suckers. Shoots from a subterranean part of a plant. 



Tree. A plant with a woody trunk which does not branch near the ground. 



Umbel. A cluster of flowers or fruit having stems of about equal length, and 

 starting from the same point. 



Veinlets. The most minute framework of a leaf. 

 Veins. The smaller lines of the framework of a leaf. 



Whorl. In a circle around the stem, as the leaves of a plant. 



