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Early Eocene plant-fossil assemblages (mostly of dispersed cuticle) from Strahan-Regatta Point, Tasmania, …


Biology Articles » Paleobiology » Paleobotany » Early eocene dispersed cuticles and mangrove to rainforest vegetation at Strahan-Regatta Point, Tasmania » Figures 11-20

Figures 11-20
- Early eocene dispersed cuticles and mangrove to rainforest vegetation at Strahan-Regatta Point, Tasmania

 

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Figure 11. Lauraceae. CUT-L-DDE, and CUT-L-DDC, 1. CUT-L-DDE. TLM view showing two stomatal complexes (SB0730, scale-bar = 50 µm); 2. CUT-L-DDE. TLM detail of a single stomatal complex (SB0730, scale-bar = 20 µm); 3. CUT-L-DDC. TLM view showing a stomatal complex (upper right) and two massively thickened trichome insertion scars (upper right) (SB0670, scale-bar = 50 µm); 4. CUT-L-DDC. TLM detail of a single stomatal complex (SB0670, scale-bar = 20 µm); 5. SEM view of outer cuticular surface showing trichome insertion scar (lower left) and stomatal complex (upper right) (S-1544, scale-bar = 10 µm); 6. SEM view of inner cuticular surface showing a single stomatal complex (S-1544, scale-bar = 10 µm).
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Figure 12. Lauraceae. CUT-L-JEC, and CUT-L-GCI. 1. CUT-L-JEC. TLM view showing papillae, and (upper right) a trichome insertion scar with a distinct ring of foot cells (SB0719, scale-bar = 50 µm); 2. CUT-L-JEC. TLM detail of a single stomatal complex (right of centre) surrounded by papillae (SB0719, scale-bar = 20 µm); 3. SEM view of outer cuticular surface showing trichome insertion scar with prominent foot cells (left of centre) and papillae obscuring stomata (S-1684, scale bar = 20 µm); 4. SEM view of inner cuticular surface showing a possible stomatal complex (just above centre) (S-1684, scale-bar = 10 µm); 5. CUT-L-GCI. TLM view showing papillae and two trichome insertion scars with prominent thickening around the pores (SL5372, scale-bar = 50 µm); 6. CUT-L-GCI. TLM detail with a stomatal complex visible (centre left) SL5372, scale-bar = 20 µm).
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Figure 13. Lauraceae. CUT-L-DCG, 1. TLM view showing five stomatal complexes around a trichome (to right of centre) inserted over two epidermal cells (SB0346, scale-bar = 50 µm); 2. TLM detail of a single stomatal complex. Note massive thickening around stomatal pore and subsidiary cells (SB0346, scale-bar = 20 µm); 3. SEM view of inner cuticular surface showing three stomatal complexes. Note prominent thickening of subsidiary cell walls (S-1544, scale-bar = 10 µm); 4. SEM view of outer cuticular surface showing two stomatal complexes. Subsidiary cells are visible and the stomatal pore is slit-like and largely plugged (S-1544, scale-bar = 10 µm); 5. TLM view of a trichome over junction of two epidermal cells (SL5049, scale-bar = 20 µm); 6. TLM view of a trichome over junction of two epidermal cells. Note epiphyllous germling (SL5049, scale-bar = 20 µm).
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Figure 14. Lauraceae. CUT-L-DCD and CUT-L-DCI. 1. CUT-L-DCD. TLM view showing several stomatal complexes and (upper right) the junction of two fine veins indicated by distinct venal epidermal cells (SB0349, scale-bar = 50 µm); 2. CUT-L-DCD. TLM detail of a four stomatal complexes (note epiphyllous germling at lower left) (SB0349, scale-bar = 20 µm); 3. UT-L-DCD. SEM view of inner cuticular surface showing a single stomatal complex. Note "butterfly" cuticular scales (S-1683, scale-bar = 10 µm); 4. CUT-L-DCD. SEM view of outer cuticular surface showing two stomatal complexes, barely distinguished from the surrounding topography (S-1683, scale-bar = 10 µm); 5. CUT-L-DCI. TLM view showing several stomatal complexes and (lower left) a trichome insertion scar. Note distinctive "anisocytic' pattern around the complexes (SB0672, scale-bar = 50 µm); 6. CUT-L-DCI. TLM detail of a two stomatal complexes (SB0672, scale-bar = 20 µm); 7. CUT-L-DCI. SEM view of outer cuticular surface showing two stomatal complexes (left of centre and upper right) where the subsidiary cells are visible and the pore slit-like, and a trichome insertion scar (lower right) (S-0302, scale-bar = 10 µm); 8. CUT-L-DCI. SEM view of inner cuticular surface showing two stomatal complexes (S-0302, scale-bar = 10 µm).
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Figure 15. Toothed ?Lauraceae, CUT-L-DCF. 1. TLM view showing several stomatal complexes and (upper centre) a massively thickened trichome insertion scar. Note much thicker cuticle over subsidiary cells (SB0666, scale-bar = 50 µm); 2. TLM detail of a two stomatal complexes and (upper left) a massively thickened trichome insertion scar (SB0666, scale-bar = 20 µm); 3. SEM view of inner cuticular surface showing single stomatal complex. Note the straight, parallel cuticular scales. The granular material is often present in subsidiary cells, but is found elsewhere and may be artifactual (S-1679, scale-bar = 10 µm); 4. SEM view of outer cuticular surface showing a prominent trichome insertion scar (upper right) and several stomatal complexes to the right, completely obscured by granular cutin (S-1679, scale-bar = 10 µm); 5. TLM view of a tooth (SB0731, scale-bar = 50 µm); 6. TLM view of a tooth (SL5387, scale-bar = 50 µm); 7. TLM view of a tooth (SL5375, scale-bar = 50 µm); 8. TLM view of a tooth (SL5386, scale-bar = 50 µm).
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Figure 16. Lauraceae. CUT-L-DDJ and CUT-L-DCH, 1. CUT-L-DDJ. TLM view showing several stomatal complexes and (upper right) a trichome insertion scar (SB0397, scale-bar = 50 µm); 2. CUT-L-DDJ. TLM detail of a single stomatal complex. Note 'double' cuticular scales (SB0397, scale-bar = 20 µm); 3. CUT-L-DDJ. TLM view showing four stomatal complexes (SL5325, scale-bar = 50 µm); 4. CUT-L-DDJ. TLM detail of a single stomatal complex. Note 'double' cuticular scales (SL5325, scale-bar = 20 µm); 5. CUT-L-DCH. TLM view showing two stomatal complexes (SB0728, scale-bar = 50 µm); 6. CUT-L-DCH. TLM detail of a single stomatal complex (SB0728, scale-bar = 20 µm).
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Figure 17. Lauraceae. CUT-L-JBI and CUT-L-JBA, 1. CUT-L-JBI. TLM view showing several stomatal complexes and (lower left) a trichome insertion scar over venal epidermal cells (SB0700, scale-bar = 50 µm); 2. CUT-L-JBI. TLM detail of three stomatal complexes. Note cuticular thickening surrounding complexes (SB0700, scale-bar = 20 µm); 3. SEM view of inner cuticular surface showing single stomatal complex. Note "butterfly" cuticular scales (S-1538, scale bar = 10 µm); 4. SEM view of outer cuticular surface showing two stomatal complexes (centre left and lower right) and two trichome insertion scars (centre and upper right) (S-1538, scale-bar = 10 µm); 5. CUT-L-JBA. TLM view showing three stomatal complexes (SB0391, scale-bar = 50 µm); 6. CUT-L-JBA. TLM detail of a single stomatal complex (SB0391, scale-bar = 20 µm).
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Figure 18. Lauraceae. CUT-L-GCG and CUT-L-GCH. 1. CUT-L-GCG. TLM view showing several stomatal complexes. Note typically thinner cuticle over subsidiary cells (SL1023, scale-bar = 50 µm); 2. CUT-L-GCG. TLM detail of two stomatal complexes (SL1023, scale-bar = 20 µm); 3. SEM view of outer cuticular surface showing two stomatal complexes with slit-like pores (S-1690, scale-bar = 10 µm); 4. SEM view of inner cuticular surface showing two stomatal complexes. The central specimen clearly shows the triangular flaps of cuticle at the polar ends of the complex (S-1690, scale-bar = 10 µm); 5. TLM view showing several stomatal complexes and three trichome insertion scars over venal epidermal cells (SL5374, scale-bar = 50 µm); 6. TLM detail of a group of stomatal complexes. Note very thin cuticle of the subsidiary cells, and clear "butterfly" shaped cuticular scales (SL5374, scale-bar = 20 µm).
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Figure 19. Proteaceae. CUT-P-EJG and CUT-P-EJF. 1. CUT-P-EJG. TLM view showing several stomatal complexes and (upper right) a persistent trichome (SB0674, scale-bar = 50 µm); 2. CUT-P-EJG. TLM detail of a trichome base over two epidermal cells (left) and a stomatal complex (right) (SB0674, scale-bar = 20 µm); 3. CUT-P-EJG. SEM view of inner cuticular surface showing a trichome base (upper left) and a stomatal complex (lower right) (S-1696, scale-bar = 10 µm); 4. CUT-P-EJG. SEM view of outer cuticular surface showing a trichome base (centre left) and a stomatal complex (upper right) (S-1696, scale-bar = 10 µm); 5. CUT-P-EJF. TLM view showing a trichome base (lower left) and (upper right) a stomatal complex with the guard cell cuticle broken away (SB0679, scale-bar = 50 µm); 6. CUT-P-EJF. TLM detail of a single stomatal complex (SB0679, scale-bar = 20 µm).

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Figure 20. Proteaceae. CUT-P-EJE and CUT-P-EJH, 1. CUT-P-EJE. TLM view showing several stomatal complexes and (Lower left and upper right) trichome bases (SB0680, scale-bar = 50 µm); 2. CUT-L. TLM detail of a trichome base (upper left) and a stomatal complex (right) (SL4740, scale-bar = 20 µm); 3. CUT-P-EJH. TLM view showing several stomatal complexes and paired trichome bases (lower right). Note elongate papillae (SB0677, scale-bar = 50 µm); 4. CUT-P-EJH. TLM detail of a trichome base over three epidermal cells (upper left) and a stomatal complex (lower centre) (SB0677, scale-bar = 20 µm); 5. CUT-P-EJH. SEM view of inner cuticular surface showing a single stomatal complex (S-1533, scale-bar = 10 µm); 6. CUT-P-EJH. SEM view of outer cuticular surface showing there stomatal complexes and (upper right) a trichome base (S-1536, scale-bar = 10 µm).

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