GLOSSARY OF BOTANICAL TERMS 



Involucre. — A whorl of bracts, subtending a flower or flower cluster. 



Involute. — Rolled inward. 



Irregular (flower). — Showing inequality in the size, form or union of 

 its similar parts. 



Keel. — A central dorsal ridge ; the two anterior united petals of a papilio- 

 naceous flower. 



Lanceolate. — Considerably longer than broad, tapering upward from the 

 middle or below. 



Leaflet. — One of the divisions of a compound leaf. 



Legume. — A simple dry fruit, dehiscent along both sutures; is the charac- 

 teristic fruit of the Pea Family. 



Limb. — The expanded part of a petal, sepal or gamopetalous corolla. 



Linear. — Elongated, narrow with sides nearly parallel. 



Lip. — Each of the upper and lower divisions of a bilabiate corolla or calyx. 



Lobe. — Any segment of an organ. 



Lobed. — Divided into lobes. 



Mesocarp. — The middle layer of a pericarp. 



MlDVElN. — The central vein or rib of a leaf or other organ. 



Monadelphous. — Applied to stamens united by their filaments into a tube 

 or column. 



Moncecious. — With stamens and pistils in separate flowers on the same 

 plant. 



Mucronate. — "With a short, sharp, abrupt tip. 



Naked. — Lacking organs or parts which are normally present in related 

 species. 



Naturalized. — Plants not indigenous to the region, but so firmly estab- 

 lished as to have become part of the flora. 



Node. — The place upon a stem which normally bears a leaf or a whorl of 

 leaves. 



Nut. — An indehiscent one-seeded fruit with a hard or bony pericarp. 



Nutlet. — Diminutive of nut. 



Obconic. — Inversely cone-shaped. 



Obcordate. — Inversely heart-shaped. 



Oblanceolate. — Inversely lanceolate. 



Oblong. — Considerably longer than broad and with nearly parallel sides. 



Obovate. — Inversely ovate. 



Obtuse. — Blunt or rounded at the end. 



Orbicular. — Approximately circular. 



Oval. — Broadly elliptical. 



Ovary. — The ovule-bearing part of the pistil. 



Ovate. — In outline like a longitudinal section of a hen's egg. 



Ovule. — The rudimentary seed. 



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