Descriptor : fibrous bundles in central cylinder

Descriptor type : categorical

Fibrous bundles are circular in TS, their diameter varies from 20–30 µm (with 5 to 10 cells) to > 200 µm with more than 250 cells (only in Phytelephas Ruiz & Pav.). These fibrous bundles are sometimes more developed in the basal part of the stem than in the apical part.

../images/Livistona_merrillii.jpg

fibrous bundles in the central cylinder

../images/Livistona_mariae_5_CCint_copie.jpg

fibrous bundles in the central cylinder

../images/Phytelephas_macrocarpa_2_copie.jpg

fibrous bundles in the central cylinder


present

(the circles on the Figure show the fb)

../images/Livistona_merrillii.jpg

present

../images/Rhapis_humilis_copie.jpg

present

absent


Hierarchy

identification within "subfamily" or "tribe"
 |
 |_ fibrous bundles in central cylinder

Belongs to the groups