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Create the page "Ptychoxylon" on this wiki!

File:On new plants from the Erian and carboniferous, and on the characters and affinities of palaeozoic gymnosperms (IA onspecimensofeoz00dawsrich).pdf (matches file content)
this last. Eenault has constituted a new genus (May, 1889) under name Ptychoxylon, in which the wedges of the woody cylinder extended inwards, and are...

(716 × 1,108 (4.23 MB)) - 08:20, 8 November 2020
File:Fossil plants; a text-book for students of botany and geology (IA fossilplantstext00sewarich).pdf (matches file content)
STENOMYELEAE IV. CYCADOXYLEAE Rhetinangium Stenomyelon . . Cycadoxylon Ptychoxylon V. CALAMOPITYEAE Calamopitys Kalymma . Eristophyton VL . CLADOXYLEAE...

(772 × 1,266 (48.53 MB)) - 23:32, 19 October 2020
File:Fossil plants - for students of botany and geology (IA cu31924085826125).pdf (matches file content)
201-207 208-210 210-213 210-213 Rhetinangium Stenomyelon . Cycadoxylon Ptychoxylon V. . CALAMOPITYEAE Calamopitys Kalynima Eristophyton . VI. . CLADOXYLEAE...

(791 × 1,277 (22.51 MB)) - 01:46, 20 October 2024
File:The Canadian record of science (IA canadianrecordof04natu).pdf (matches file content)
last. Renault has constituted a new genus (May, 1889) under the name Ptychoxylon, in which the wedges of the woody cylinder extended inwards, and are...

(864 × 1,300 (30.02 MB)) - 14:21, 4 December 2022

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