. Fossil plants : for students of botany and geology . Paleobotany. Fig. 656. Stenorachis scanicus. (After Nathorst; A, nat. size; B, x2.) grounds for such relationship, but the resemblance of this and other species of Stenorachis to abnormal seed-bearing shoots of Ginkgo biloba may be significant (cf. fig. 631, D, p. 5). A similar but rather smaller type was described by Heer^ from Upper Jurassic rocks in Spitzbergen as Carpolithes striolatus. Nathorst^ examined Heer's figured specimens and recognised one of them as an example of Stenorachis, agreeing in the possession of forked appendages wi
. Fossil plants : for students of botany and geology . Paleobotany. Fig. 656. Stenorachis scanicus. (After Nathorst; A, nat. size; B, x2.) grounds for such relationship, but the resemblance of this and other species of Stenorachis to abnormal seed-bearing shoots of Ginkgo biloba may be significant (cf. fig. 631, D, p. 5). A similar but rather smaller type was described by Heer^ from Upper Jurassic rocks in Spitzbergen as Carpolithes striolatus. Nathorst^ examined Heer's figured specimens and recognised one of them as an example of Stenorachis, agreeing in the possession of forked appendages with S. scanicus and bearing seed-like bodies. The fossils described by Shirley* from Ilhaetic(?) beds in Queensland as Beania geminata are similar in habit to Stenorachis scanicus and differ from Beania gracilis Carr. in the absence of distally expanded sporophylls. Another Rhaetic species is described by Nathorst^ as Stenorachis Solmsi in which the 'sporophylls' have a different form and are characterised by a distal, erect, laminar expansion deeply divided into two segments: no seeds or microsporangia have been found. Stenorachis lepida (Hear). The species for which this name has been suggested was originally regarded by Heer as the male flower of the Jurassic species Ginkgo 1 Nathorst (02) p. 16. " Heer (77) i. p. 47, PI. ix. fig. 17. ' Nathorst (97) p. 20, PI. i. fig. 15. * Shirley (98) p. 16, PL xx. <â Nathorst (02) p. 17, PI. i. figs. 18â Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Seward, A. C. (Albert Charles), 1863-1941. Cambridge : University Press
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