(n.) A solid mass of cellular tissue, consisting of one or more layers, usually in the form of a flat stratum or expansion, but sometimes erect or pendulous, and elongated and branching, and forming the substance of the thallogens.

appendage arm bine branch branchedness branchiness burgeon deadwood flagellum fork frond hand imp joint leg limb link lobe lobule member offshoot organ pinion ramage ramification runner sarment scion shoot slip spear spray sprig sprit sprout spur stolon sucker switch tail tendril thallus twig wing