INTRODUCTION TO BOTANY. xxxfii 



tiled, (imbricated,) lying over each other, Hke tiles on a roof; 

 for example, common heath, (calluna vulgaris.) See Plate, 28. 



24. bundled, or tufted, (fasciculated,) growing in bunches from 

 nearly the same point ; for example, the larch. See Plate, 27. 



25. cross-paired, (decussate,) growing in pairs, which alter- 

 nately cross each other at right angles. See Plate, 29. 26. 

 tisoo-ranked, (distiched,) spreading in two directions, and yet 

 not regularly opposite at the insertion ; for example, yew, 

 (taxus.) 



Supports, Props, (fulcra :) those parts which serve to give 

 strength and support to plants. Linnaeus reckons seven kinds 

 of these. 1. stipida, a scale or small leaf, on each, or on one 

 side at the base of the leaf-stalk, or flower-stalk. See Plate, 

 84). 2. hractea, ox floral-leaf, a leaf differing from the other 

 leaves in shape and colour ; generally situated on the flower- 

 stalk, and often so near the corolla, as to be mistaken for the 

 calyx, at first sight. The bractea is generally more perma- 

 nent than the calyx: the last withers, when the fruit is ripe; 

 example of bracteas in lime-tree, (tilia,) sage, (salvia.) See Plate, 

 85, a. 86, a. 3. thorn, (spine,) a sharp process growing from 

 the woody part of a plant. See Plate, 91. 4. pricldc, (acu- 

 leus,) a sharp process or projection, fixed into the bark only; 

 for example, rose, &c. See Plate, 92. 5. claspcr, (tendi'il,) 

 a thread-shaped, spiral band by which a plant is fastened to 

 some other body, or supports itself on other plants; for exam- 

 ple, vine, pea, &c. See Plate, 78, 90. 6. gland, a small 

 tumour, servinn- for the excretion, or discharo;e of some kind 

 of fluid : it is usually found on the leaves, leaf-stalks, flower- 

 stalks, or stipulas ; example of glands, moss-rose, 7. hair 

 or doxmi. 



Inflorescence ; the various modes in which flowers are 

 fastened to the plant, by means of the flovv'er-stalk. Under 

 inflorescence we may class the — 1. tvhorl, (verticillus,) where 

 the almost stalkless flowers surround the stem in a kind of 

 rino; : the flowers, in some cases, are not inserted on all sides 

 of the stem. See Plate, 93. 2. bunch, cluster, or raceme, 

 consists of one common flower-stalk, with many somewhat 

 distant flowers, each on its own proper stalk, from the side of 

 the common flower-stalk. See Plate, 98. 3. spih-j where 



d 



