This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.
English: Legend:
1, Bennettites stem: portion of transverse section of stem; a, vascular
cylinder; b, leaf-traces; c, pith; d, cortex.
2, Bennettites stem, tangential section; e, flower-peduncles.
3, Bennettites stem, leaf-traces attached to the vascular cylinder and
passing as simple strands through the cortex; d, cortex.
4, Williamsonia, Wealden, England.
5, Young leaf of Bennettites.
6, Ramenta of Bennettites in transverse section.
7, Bennettites, female flower in longitudinal section; f, apex of
peduncle; g, bracts (shown in surface view in 4); h, seeds and
seminiferous pedicels; i, interseminal scales.
8, Bennettites, synangium of male flower, showing line of dehiscence,
k, and microspores, l.
9, Synangium, in transverse section, showing sporangial groups,
m, and microspores, l.
10, Bennettites flower in vertical section, showing the central female
portion, n, two sporophylls bearing synangia (male), o, and
hairy bracts, g.
11, Bennettites seed in longitudinal section, showing the dicotyledonous
embryo; p, cotyledons; r, radicle; s, testa.
{{Information |Description ={{en|1=Drawings of fossil remains of various parts of ''Bennettites''.}} |Source =“Palaeobotany,” ''Encyclopædia Britannica'' (11th ed.), v. 21, 1911, p. 547, fig. 15. |Author =1-3, ''after Carruthers...