The reddish-brown color is due to the coating of fibrils that covers the cap.
This plumps the fibres, separates the fibrils and kills the grease.
In the midst of these fibrils he finds the nuclei of these cells.
This part of the corium is so exceedingly close that the fibrils are scarcely recognizable.
Occasionally in Crocus corms some of the fibrils may be met with much lengthened and thickened, and invested with a fleshy sheath.
Analogous in operation are the fibrils of the eye which respond to light-waves of various length and intensities.
These fibrils are so easily excited by electricity as to denote an essential similarity of build.
Between the fibrils protoplasmic masses (connective-tissue corpuscles) are found.
In the ventral cord no small fibrils were seen only rather small fibers which may have been fibrils.
From the appearance of their plexus of fibrils these are sometimes called moss fibres.