10 



PB ACTIO AL GUIDE TO GABDEN PLANTS 



PIG. 65.— JNDUBIUM, 



said of stamens when more than 20 in 



number, as in Buttercups, Wild Eoses &e. 

 Indehiscent, not bursting, said of fruits 



which do not open spontaneously when 



fully ripe. 

 Induplicate, when the edges of organs 



arranged in a valvate manner are folded 



inwards. 

 Indusium, the membranous covering of the 



spores-cases of many 



Perns, as shown in 



fig. 6S ; m repre- 

 sents the indusium, 



and sp the spore- 

 cases. A soUtary 



spore-case burst and 



scattering spores is 



shown in fig. 105. 

 Inferior, applied to an 



ovary when the calyx 



tube is adnate to it ; 



and to the calyx when it is quite free from 



the ovary and below it, in which latter case 



the ovary is superior. 

 Inflexed, curved inwards. 

 Inflorescence, the arrangement of the flowers 



upon the stalk or peduncle. Inflorescences 



are spoken of as racemose, cymose, spicate, 



capitate, corymbose, 



paniculate &o., accord- 

 ing as to whether they 



are borne in the 



manner described by 



those terms. 

 Infundibuliform, funnel- 

 shaped (fig. 66). 

 Internode, the space 



between two nodes or 



joints of a stem. 

 Interruptedly pinnate, 



when pairs of small pinns alternate with 



large ones. 

 Introrse, said of anthers which open inwards 



towards the pistil or carpels. 

 Involucels, the involucres of secondary 



umbels. 

 Involucre, the whorled bracts at the base 



of an umbel, head, or single flower, as in 



figs. 25, and 113, m. 

 Involute, rolled from the back of anything, 



as towards the upper side of a leaf. 

 Irregular, petals or sepals unequal in size, 



or different in form in the same flower, as 



shown in figs. 5, 22, 23, 49. 



Jugum, applied to a pair of leaflets ; thus a 

 leaf may be unijugate, byugate, or multi- 

 jugate according as there are one, two, or 

 many pairs of leaflets (flgs. 16, 17). 



Keel, the name given to the lower pair of 

 petals of Papilionaceous or Pea-like flowers. 

 In fig. 5 the keel is shown at k. 



FIG. 66. — INPUNDI- 

 BULIFOEM. 



mo. 68. — 



LANCEOLATE. 



Labellum, the same as ' lip,' q.v. 

 Labiate, lipped, as the flowers of many 

 plants of the Labiatee 

 family; a corolla or calyx 

 divided into 2 unequal por- 

 tions (fig. 67). 

 Laciniate, divided into nar- 

 row irregular lobes. 

 Lacteus, white, with a, faint 



tinge of blue. 

 Lacustris, growing in lakes. 

 Lamina, the blade of a leaf, 



as shown at 6 in fig. 98. 

 Lanceolate or lance-shaped, 

 narrowly elliptic, and 

 tapering to each end, as 

 shown in fig. 68, in which 

 a represents a lance- 

 shaped leaf proper, and b 

 an oblanceolate leaf, or 

 a lance-shaped leaf re- 

 versed. 

 Lancet-shaped, shortly and 



bluntly lanceolate. 

 Lax, loosely arranged, 

 often used in connection 

 with the arrangement of flowers on the 

 stems. 

 Leaflets, the subdivisions of compound 



leaves, as shown in figs. 16, 17, SO, 64. 

 Legume, a 1-celled and 2- 

 valved seed vessel with 

 the seeds arranged along 

 the inner angle, as in the 

 Pea, Bean Ac. (fig. 69). 

 Ligulate, strap - shaped, 

 used in connection with 

 the shape of leaves, and 

 also of the ' ray ' or outer 

 spreading florets in plants 

 of the Composite order 

 (p. 492). 

 Ligule, a membrane at the base of the blade 



of the leaf of Grasses. 

 Limb, the flattened expanded part of a leaf 



or petal, as shown at figs. 70, 72, 73 &c. 

 Linear, very narrow and long. 

 Lingulate, tongue-shaped, long, fleshy, con- 

 vex, blunt. 

 Lip, this term (and also the Latin equivalent 

 labellum) is used particu- 

 larly to designate the 

 largest and most conspic- 

 uous segment of an Orchid 

 flower, as shown in fig. 

 70. Here I is the lip, 

 col the column, more 

 highly shown at fig. 32, 

 p the petals, s the sepals, 

 and us the upper sepal. 

 Littoralis, growing on the 



sea-shore. 

 Lobate, out into rather large divisions, as 

 with many leaves. 



FIG. 70.— MP. 



