Fibril 



OF BOTANICAL TERMS. 



Fimbria 



der roots like those of grasses. 

 Also applied to bodies of simi 

 lar form which have no special 

 strength, as the threads or fila- 

 ments in a nucleus during cell- 

 division. 



FI'BRIL, diminutive of Fibre; a 

 small or secondary fibre. 



FlBKlL'LA (pi. Flbril'lse), see 

 Fibril. 



FI'BRfLLOSE, diminutive of 

 Fibrous; bearing fibrils or com- 

 posed of small fibres. 



FI'BRfLLOSE MYCE'LlUM, see 

 Fibrous Mycelium. 



FI'BROUS, composed wholly, or 

 in large part, of fibres; separa- 

 ble into fibres. 



FIBROUS MYCE'LlUM, myce- 

 lium in which the hyphae form 

 by their union elongated 

 branching strands; fibrillose 

 mycelium; mycelial strand. 



FI'BRO-VA'SAL BUN'DLE, see 



FlBROVASCULAR BUNDLE. 



FI'BRO VASAL STRING, see 



FlBROVASCULAR BUNDLE. 



FIBROVASCULAR BUN'DLE, one 



of the characteristic elements 

 in the stem of all flowering 

 plants and the higher crypto- 

 gams. Isolated fibrovascular 

 bundles form the "fibres" in 

 the so-called pith of a corn- 

 stalk, and the veins in leaves. 

 Each bundle usually consists 

 of two parts, xylem and phloem 

 (which see), the whole often 

 surrounded by a special layer 

 of cells called the bundle- 

 sheath. 



FLBROVAS'CULAR CORD, a term 

 applied by Strasburger to a 

 fibrovascular bundle in mono- 

 cotyledons, but not generally 

 adopted. 



FlBROVASCULAR CYLINDER, 

 a name given to the peculiar 



fibrovascular system in the 

 stem of Lycopodiacese. Some- 

 times used in exogens, espe- 

 cially in roots, where it is 

 generally called "central cyl- 

 inder." 



FIBROVAS'CULAR SYS'TEM, the 



fibrovascular tissues of a plant 

 taken together. In exogenous 

 trees it includes the veins of 

 the leaves, and all the material 

 of the stem and branches, ex- 

 cept the pith, medullary rays, 

 and outer bark. 



FID'DLE-SHAPED, see Panduri- 



FORM. 



FlL'AMENT, the stalk of a sta- 

 men supporting the anther. 



FlLAMEN'TOUS, slender and 

 thread-like, or composed of 

 filaments. 



FiLAMEN'TOUS MYCE'LlUM, 

 one composed of free hyphae, 

 which are at most loosely in- 

 terwoven with one another, 

 but without forming bodies of 

 definite shape and outline; fioc- 

 cose mycelium. 



FlLAMEN'TOUS SPOR'OPHORE, 



see Simple Sporophore. 



fIlA'RIOUS, see Filamentous. 



FIL'EM6t, see Feuillemort. 



FIL'ICOID, fern-like. 



FiL'lFdRM, thread-shaped; slen- 

 der, round, and of equal thick- 

 ness throughout. Compare 

 Capillary. 



FIL'lFORM APPARATUS, a ho- 

 mogeneous, strongly refrac- 

 tive, cellulose cap often found 

 at the apex of each synergida, 

 especially in monocotyledons. 



FILIPEN'DULOUS, hanging by a 

 thread. 



Fi'LOSE, terminating in a thread- 

 like process. 



FlM'BRlA, a fringe. 



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