Canadian Science Publishing
cjb-2016-0025f1
Article Title: Stockeystrobus gen. nov. (Cupressaceae), and the evolutionary diversification of sequoioid conifer seed cones
Author: Gar W. Rothwell, Tamiko Ohana
Citation: Botany, 2016, 94(9): 847-861, doi.org/10.1139/cjb-2016-0025
Source: dx.doi.org/10.1139/cjb-2016-0025
Caption: Fig. 1. Stockeystrobus interdigitata gen. et sp. nov. Holotype, National Museum of Nature and Science specimen number NSM PP-9373. (A) Slightly oblique longitudinal section of cone, near-radial at apex and radial at base, showing cylindrical shape, peltate (red arrowhead) bract–scale complexes with heads (h) that are connected by interlocking trichomes (black arrowheads), radial complex traces (t) diverging from axis (a) and numerous inverted seeds. Five horizontal white lines across cone represent cross-sections (e.g., Fig. 1B) made before cone was reassembled, leaving spaces to compensate for thickness of cone removed. Slide L1-1, ×3. (B) Cross-section of cone showing axis (a), diverging complex traces (t), one attached peltate bract–scale complex (red arrowhead), and numerous inverted seeds in growth position on inner surface of peltate complex heads (h). Black arrowheads identify positions of interlocking trichomes that attach adjacent heads. Slide 4, ×4.4. (C) Cross-section of cone showing bract–scale trace (t) at the level where the trace begins to divide to produce adaxial bundle (black arrowhead) and several abaxial bundles. Slide 1-77, ×11. (D) Cross-section of cone showing complex head at a slightly more adaxial level than Fig. 1C, where the adaxial bundle (arrowhead) and several adaxial bundles already have separated. Note several seeds in position of attachment, and resin canal (r) in ground tissue. Slide 1-2, ×8. (E) Cross-section of cone showing complex head at a slightly more adaxial level than Fig. 1D, where adaxial bundles form single row, and there is one adaxial bundle (at arrowhead). Note histology, resin canal (r), and periderm on adaxial surface of head. Slide 2-1, ×9. www.nrcresearchpress.com/journal/cjb
For rights and permission, click here [bit.ly/1pL1c5f]
cjb-2016-0025f1
Article Title: Stockeystrobus gen. nov. (Cupressaceae), and the evolutionary diversification of sequoioid conifer seed cones
Author: Gar W. Rothwell, Tamiko Ohana
Citation: Botany, 2016, 94(9): 847-861, doi.org/10.1139/cjb-2016-0025
Source: dx.doi.org/10.1139/cjb-2016-0025
Caption: Fig. 1. Stockeystrobus interdigitata gen. et sp. nov. Holotype, National Museum of Nature and Science specimen number NSM PP-9373. (A) Slightly oblique longitudinal section of cone, near-radial at apex and radial at base, showing cylindrical shape, peltate (red arrowhead) bract–scale complexes with heads (h) that are connected by interlocking trichomes (black arrowheads), radial complex traces (t) diverging from axis (a) and numerous inverted seeds. Five horizontal white lines across cone represent cross-sections (e.g., Fig. 1B) made before cone was reassembled, leaving spaces to compensate for thickness of cone removed. Slide L1-1, ×3. (B) Cross-section of cone showing axis (a), diverging complex traces (t), one attached peltate bract–scale complex (red arrowhead), and numerous inverted seeds in growth position on inner surface of peltate complex heads (h). Black arrowheads identify positions of interlocking trichomes that attach adjacent heads. Slide 4, ×4.4. (C) Cross-section of cone showing bract–scale trace (t) at the level where the trace begins to divide to produce adaxial bundle (black arrowhead) and several abaxial bundles. Slide 1-77, ×11. (D) Cross-section of cone showing complex head at a slightly more adaxial level than Fig. 1C, where the adaxial bundle (arrowhead) and several adaxial bundles already have separated. Note several seeds in position of attachment, and resin canal (r) in ground tissue. Slide 1-2, ×8. (E) Cross-section of cone showing complex head at a slightly more adaxial level than Fig. 1D, where adaxial bundles form single row, and there is one adaxial bundle (at arrowhead). Note histology, resin canal (r), and periderm on adaxial surface of head. Slide 2-1, ×9. www.nrcresearchpress.com/journal/cjb
For rights and permission, click here [bit.ly/1pL1c5f]