Subject ASC00004h6
Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature.
v. 17 (1881), Page 81 (1881)
MBLWHOI Library
BHL Page 1972941
Keywords
Stigmaria radial vessels tree root fossil Carboniferous transverse section ligneous zone medullary pith Transverse section of Stigmaria (max. 35 diam.) showing radial arrangement of the vessels of the ligneous zone place of medullary pith woody or ligneous zone branching tree root fossil found in Carboniferous rocks paleobotany fossil plant microscopic view stigmaria wood stem pith