GLOSSARY. 



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Tntrorse. Turned inward or toward the axis. 

 Involucel. A secondary involucre, as that of 



an umbellet in Umbelliferae. 

 Involucellate. Having an involucel. 

 fnvoiucral. Belonging to an involucre. 

 Involucrate. Having an involucre. 

 Involucre. A circle or collection of bracts 



surrounding a flower cluster or head, or a 



single flower. 

 Involute. Rolled inward. 

 Irregular (flower). Showing inequality in 



the size, form, or union of its similar parts. 



filaceous. 

 pearance. 



Resembling a catkin in ap- 



Keel. A central dorsal ridge, like the keel of 

 a boat ; the two anterior united petals of a 

 papilionaceous flower. 



Kidney -shaped. Crescentic with the ends 

 broad and rounded ; reniform. 



Labiate. Lipped; belonging to the Labiatee. 



Lacerate. Irregularly cleft as if torn. 



Laciniate. Slashed ; cut into narrow pointed 

 lobes. 



Lamella. A thin flat plate or laterally flat- 

 tened ridge. 



Lanceolate. Shaped like a lance-head, 

 broadest above the iase and narrowed to 

 the apex. 



Lateral. Belonging to or borne on the side. 



Lax. Loose and slender. 



Leaflet. A single division of a compound 

 leaf. 



Legume. The fruit of the Leguminosae, 

 formed of a simple pistil and usually dehis- 

 cent by both sutures. 



Leguminous. Pertaining to a legume or to 

 the Leguminosse. 



Lenticular. Lentil-shaped ; of the shape of 

 a double-convex lens. 



Lepidote. Beset with small scurfy scales. 



Ligulate. Furnished with a ligule. 



Ligule. A strap-shaped corolla, as in the 

 ray-flowers of Composite ; a thin scarious 

 projection from the summit of the sheath 

 in Grasses. 



Liliaceous. Lily-like; belonging to the 

 Liliaceae. 



Limb. The expanded portion of a gamopet- 

 alous corolla, above the throat ; the ex- 

 panded portion of any petal, or of a leaf. 



Linear. Long and narrow, with parallel 

 margins. 



Lip. Each of the upper and lower divisions 

 of a bilabiate corolla or calyx ; the peculiar 

 upper petal in Orchids. 



Lobe. Any segment of an organ, especially 

 if roumded. 



Lobed. Divided into or bearing lobes. 



-Icznlar. In composition, having cells. 



Lf>?tvlicidal. Dehiscent into the cavity of a 

 ce* 1 through the dorsal suture 



Lunate. Of the shape of a half-moon or 



crescent. 



Lunulate. Diminutive of Lunate. 

 Lyrate. Pinnatifid with a large and rounded 



terminal lobe, and the lower lobes small. 



Macrospore. The larger kind of spore in 

 Selaginellacese, etc. 



Marcescent. Withering but persistent. 



Marginal. Along or near the edge. 



Marginate. Furnished with a border pe- 

 culiar in texture or appearance. 



Mealy. Farinaceous. 



Membranaceous, Membranous. Thin and 

 rather soft and more or less translucent. 



Meniscoid. Concavo-convex. 



Mericarp. One of the achene-like carpels of 

 Umbelliferse. 



-merous. In composition, having parts, as 

 2-merous, having two parts of each kind. 



Micropyle. The point upon the seed at 

 which was the orifice of the ovule. 



Microspore. The smaller kind of spore in 

 Selaginellaceae, etc. 



Midrib. The central or main rib of a leaf. 



Mitriform. Shaped like a mitre or cap. 



Monadelphous (stamens). United by their 

 filaments into a tube or column. 



Moniliform. Resembling a string of beads ; 

 cylindrical with contractions at intervals. 



Monocotyledonous. Having but one coty- 

 ledon. 



Monoecious. With stamens and pistils in 

 separate flowers on the same plant. 



Mucilaginous. Slimy ; containing mucilage. 



Mucro. A short and small abrupt tip. 



Mucronate. Tipped with a mucro. 



Multifid. Cleft into many lobes or segments. 



Muricate. Rough with short hard points. 



Muriculate. Very finely muricate. 



Naked. Bare; without the usual covering or 



appendages. 

 Nectary. Any place or organ where nectar 



is secreted. 



Nectariferous. Producing nectar. 

 Nerve. A simple or unbranched vein or 



slender rib. 

 Node. The place upon a stem which nor- 



mally bears a leaf or whorl of leaves. 

 Nodose. Knotty or knobby. 

 Nucleus. The germ-cell of the ovule, which 



by fertilization becomes the seed ; the ker 



nelofaseed. 



Numerous. Indefinite in number. 

 Nut. A hard indehiscent 1- celled and 1- 



seeded fruit, though usually resulting from 



a compound ovary. 

 Nutlet. A diminutive nut. 



Ob-. A Latin prefix, usually carrying the 

 idea of inversion. 



O* compressed. Compressed dorso ventrallj 

 instead of bfernlly. 



