Igneus 



OF BOTANICAL TERMS. 



Incubation 



iG'NEUS, fiery-red, a lively scar- 

 let. 



IMBER'BlS, without a beard or 

 other hairs. See Glabrous. 



iMBLBl'TION, the addition of 

 moisture to organized bodies 

 in a manner which causes 

 them to swell up. Compare 

 Absorption. 



iM'BRiCATE, overlapping like 

 tiles or shingles on a roof, as 

 the scales of buds. In aesti- 

 vation at least one piece is 

 wholly external and one 

 wholly internal. 



IMBRICATED, see Imbricate. 



LM'BRIcAtIve, see Imbricate. 



IMMAR'GInATE, without a dis- 

 tinct rim or border. 



IMMERSED', (1) growing wholly 

 under water; demersed; sub- 

 mersed. (2) When one part 

 or organ is completely em- 

 bedded in another; innate. 

 Compare Emersed. 



Immortelles', a term applied 



to various plants, the flower- 

 heads of which retain their 

 original shape and an attrac- 

 tive appearance when dried, as 

 Guaphalium and some other 

 Compositse; everlasting flow- 

 ers. 



LMPArIpIN'NATE, pinnate with 

 a terminal leaflet, thus usually 

 making an odd number; oddly 

 pinnate. 



ImPER'FECT, said of a flower 

 which lacks either stamens or 

 pistils. 



Imperforate, closed; without 



an opening. 



IMPREGNATION, see Fertili- 

 zation. 



IN-AND-IN, breeding for succes- 

 sive generations from closely 

 related individuals. Growing 

 a "stock " or " strain" of corn 

 on the same farm for many 



years would be called in-and- 

 in breeding. 



INANE', empty. 



INAN'THERATE, bearing no an- 

 ther; said of certain sterile fila- 

 ments or abortive stamens. 



InARCH'ING, the natural union 

 of stems or roots which grow 

 in contact; natural grafting. 

 Also applied in horticulture to 

 a form of grafting in which 

 both stock and scion remain at 

 first attached to their own roots. 



Inarticulate, not jointed; 



continuous. 

 INCAnES'CENT, see Canescent. 



Strictly, somewhat or slightly 



canescent. 

 INCA'NOUS, see Canescent. 

 INCISED', irregularly and deeply 



cut into rather large lobes. 

 INCLINED', gradually bent out 



of a perpendicular at less than 



a right angle, as the branches 



of most deciduous trees. 

 INCLUDED, contained in a cavity 



and not projecting beyond it; 



enclosed. Compare Exserted. 

 INC6MPLETE', destitute of some 



part which is usually present; 



said especially of flowers which 



lack one or more of the four 



sets of primary organs, sepals, 



stamens, and pistils. 



Inconspicuous, small in size; 



not readily observed. 



INCRAS'SATE, thickened; espe- 

 cially, gradually thickened or 

 enlarged upward from the base. 



INCRES'CENT, growing. 



Incubation, the period from 



the time of infection or the 

 sowing of the spores until a 

 bacterium or fungus becomes 

 externally or visibly manifest. 

 Applied mainly to pathogenic 

 bacteria affecting animals to 

 indicate the period from the 



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