400 



GLOSSARY. 



Imbricate^ overlapping. 

 Immersed, when one part or organ 

 is completely imbedded in an- 

 other. 

 Impari-pinnate, unequally pinnate, 

 that is, pinnate with an odd termi- 

 nal leaflet. 

 Incised, cut. 

 Incwrved, gradually bending from 



without inwards. 

 Indefinite, where the number of any 

 particular description of organ is 

 uncertain. 

 Indehiscent, without dehiscence, or 



regular line of suture. 

 Inferior, placed below another or- 

 gan ; used especially to express the 

 coimection of the tube of a calyx 

 with the ovary. 

 Inflated, bladdery. 

 Inflorescence, the general arrange- 

 ment or disposition of the flowers. 

 Interrupted, having symmetry or 

 regularity of outline or composi- 

 tion partially destroyed. 

 Involucel, a partial mvokicre, 

 Invohicre, a whorl of bracts, free or 

 united, seated on the peduncle, 

 either near to or at some distance 

 below tlie flower or flowers. 

 Involute, rolled inwards at the edge, 



as some leaves. 

 Irregular, wanting symmetry ; also 



unequal. 

 Isomerous, having an equal number 



of parts. 

 Joints, certain parts where the uni- 

 formity of the tissue is altered, 

 and where it may readUy be rup- 

 tured or falls aaunder in decay. 

 Keel, a projecting ridge, rising along 

 the middle of a flat or curved sur- 

 face : also the two lowermost and 



more or less combined petals of a 

 papilionaceous corolla. 

 Keeled, furnished with a keel. 

 Knotted, swollen at intervals into 

 knobs, somewhat resembling a 

 knotted cord. 

 Lahellum, tlie lip of a flower. 

 Labiate, a tubular calyx or corolla 

 with the limb divided into two un- 

 equal portions, or lobes placed 

 above and below, like the lips of a 

 mouth. 

 Lanceolate, narrow and tapering at 

 eacii end, like the head of a 

 spear. 

 Lateral, fixed on or near the side of 



any organ. 

 Lax, loose. 



Leaf, an appendage to the stem, 

 composed of cellular tissue with 

 fibres of vascular tissue inter- 

 mixed. 

 Leaflet, each separate portion or 

 subordinate expansion in the 

 limb of a compound leaf. 

 Legume, tlie one-celled and two- 

 valved seed-vessel of Leguminosse. 

 Lenticular, of the form of a double- 

 convex lens. 

 Leprous, covered with flat scurfy- 

 scales . 

 Lignle, a membranous appendage 

 at the summit of the sheathing 

 petiole, in grasses. 

 Ligulate, strap-sliaped. 

 Limb, the superior flat expanded 



part of a petal or leaf. 

 Linear, having the margins parallel, 

 and the length considerably longer 

 than the breadth. 

 Lip, a term applied to each of the 

 two large divisions of an un- 

 equally parted monopetalous co- 



