GLOSSARY OF BOTANICAL TERMS 



Involucre. — A whorl of l.ra<-t>, Mil>lcn<llni,^ a lliAVcror llowcr clu.-,tcr. 



Ln VOLUTE. — Rolled inward. 



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



its similar parts. 

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

 naceous flower. 

 I.A.NCKoi.A IE.— Considerably longer than broad, tapering upward from the 



middle or below. 

 Leafle T. — One of the divisions of a compound leaf. 



Legu.me.— 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. 

 Llnear. — Elongated, narrow with sides nearly parallel. 



Lip. Each of the upper and lower divisions of a bilabiate corolla or caly.x. 



Lobe. — Any segment of an organ. 



LoBED. — Divided into lobes. 



Mesocarp.— The middle layer of a pericarp. 



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



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



or column. 

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



plant. 

 MucRONAiE.— With a short, sharp, abrupt tip. 

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



species. 

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

 lished as to liave become part of the flora. 

 ]S:oi)E. — 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. 

 Ohconic. — Inversely cone-shaped. 

 Ohcordate. — Inversely heart-shaped. 

 Oblanceolate. — Inversely lanceolate. 



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

 Obovate. — Inversely ovate. 

 Obtuse. — I'lunt or rounded at the end. 

 Orbicii AU. — 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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