GLOSSAPY OF TECHNICAL TERMS 



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like a calyx below an ovary or an ovary below a ] 

 superior calyx. 



Inflorescence. Flower-cluster. 



Infrapetiolar. Below the petioles. 



Innate. Borne on the apex of the supporting part; 

 in an anther the counterpart of adnate. 



Interpetiolar. Between the petioles. 



Introrse. Turned inward; descriptive of an anther 

 opening toward the axis of the flower. 



Inverse. Inverted. 



Involucre. A circle of bracts surrounding a flower- 

 cluster. 



Involute. Rolled inward. 



Laciniate. Cut into narrow incisions or lobes,. 

 Lactescent. Yielding milky juice. 

 Lamellate. Composed of thin plates. 

 Lanceolate. Shaped like a lance; narrower than 



oblong and tapering to the ends, or at least to 



the apex. 



Lanuginos?. Clothed with soft reflexed hairs. 

 Leaf. Green expansions borne by the stem in 



which assimilation and the processes connected 



with it are carried on. 

 Leaflet. The separate division of a compound 



leaf. 

 Legume. The seed vessel of plants of the Pea 



family, composed of a solitary carpel normally 



dehiscent only by the ventral suture. 

 Lenticels. Lenticular corky growths on young 



bark. 



Lenticellate. Having lenticels. 

 Lepidote. Beset with small scurfy scales. 

 Ligulate. Strap-shaped. 



Linear. Said of a narrow leaf several times nar- 

 rower than long, with parallel margins. 

 Lobe. The division of an organ. 

 Lobulate. Divided into small lobes. 

 Loculicidal. Dehiscent into the cavity of a peri- 



carp by the back, that is through a dorsal suture. 



Marcescent. Said of a part of a plant, withering 

 without, falling off. 



Medullary rays. The rays of cellular tissue in a 

 transverse section of an exogenous stem and ex- 

 tending from the pith to the bark. 



Membranaceous. Thin and pliable like a mem- 

 brane. 



Micropyle. The spot or point in the seed at the 

 place of the orifice of the ovule. 



Midrib. The central or main ritf of a leaf. 



Moncecious. Unisexual, with the flowers of the | 

 two sexes borne by the same individual. 



Mucro. A small and abrupt tip to a leaf. 



Mucronate. Furnished with a mucro. 



Muricate. Rough, with short rigid excrescences. 



Naked buds. Buds without scales. 



Nectar. The sweet secretion of various parts of a 



flower. 



Nectariferous. Nectar -bearing. 

 Node. The portion of the stem which bears a leaf 



or whorl of leaves. 



Nucleus. The kernel of an ovule or seed. 

 Nut. A hard and indehiscent 1-seeded pericarp 



produced from a compound ovary. 

 Nutlet. A diminutive nut or stone. 



Obclavate. Inverted club-shape. 

 Obcordate. Inverted heart-shaped. 



Oblanceolate. Lanceolate but tapering toward the 



base more than toward the apex. 

 Oblong. Longer than broad with nearly parallel 



sides. 

 Obovate. Ovate with the broader end toward the 



apex. 

 Obovoid. Solid obovate with the broader end 



toward the apex. 



Obpyramidal. Inversely pyramidal. 

 Obtuse. Blunt or rounded at the apex. 

 Operculate. Furnished with a lid. 

 Orbicular. A flat body circular in "outline. 

 Orthotropous. Descriptive of an ovule with a 



straight axis much enlarged at the insertion and 



the orifice at the other end. 

 Oval. Broad-elliptic, with round ends. 

 Ovate. Of the shape of the longitudinal section of 



a hen's egg, with the broad end basal. 

 Ovoid. Solid ovate or solid oval. 

 Ovule. The part of the flower which becomes a 



seed. 



Palmate. Lobed or divided, with the sinuses 

 pointing to or reaching the apex of the petiole or 

 insertion. 



Panicle. A loose compound flower-cluster. 



Papilionaceous. Butterfly-like. 



Papilliform. The shape of papillae. 



Papillate. Bearing papillae, minute nipple-shaped 

 papillose projections. 



Parietal placenta. A placenta borne on the wall of 

 the ovary. 



Pedicel. The stalk of a flower in a compound in- 

 florescence. 



Pedicellate. Borne on a pedicel. 



Peduncle. A general flower-stalk supporting either 

 a cluster of flowers, or a solitary flower. 



Pedunculate. Borne on a peduncle. 



Peltate. Descriptive of a plane body attached by 

 its lower surface to the stalk. 



Penniveined. Same as pinnately veined. 



Perfect. Said of a flower with both stamens and 

 pistil. 



Perianth. The envelope of a flower consisting of 

 calyx, corolla, or both. 



Pericarp. The fructified ovary. 



Persistent. Said of leaves remaining on the 

 branches over their first winter, and of a calyx 

 remaining under or on the fruit. 



Petal. A division of the corolla. 



Petiolate. Having a petiole. 



Petiole. The footstalk of a leaf. 



Petiolulate. Having a petiolule. 



Petiolule. The footstalk of a leaflet. 



Pilose. Hairy, with soft and distinct hairs. 



Pinnae. The primary divisions of a twice pinnate 

 leaf. 



Pinnate. A leaf with leaflets arranged along each 

 side of a common petiole. 



Pistil. The female organ of a flower, consisting of 

 ovary, style, and stigma. 



Pistillate. Said of a unisexual flower without fer- 

 tile stamens. 



Pith. The central cellular part of a stem. 



Placenta. That part of the ovary which bears the 

 ovules. 



Plane. Used in describing a flat surface. 



Plumule. The bud or growing part of the embryo. 



Pollen. The fecundating cells contained in the an- 

 ther. 



