A vanished ecosystem: Sophora microphylla (Kōwhai) dominated forest recorded in mid-late Holocene rock shelters in Central Otago, New Zealand
Author
Pole, Mike
text
Palaeontologia Electronica
2022
a 1
2022-01-31
25
1
1
41
http://dx.doi.org/10.26879/1169
journal article
294429
10.26879/1169
a7bc6566-aafc-4f1e-a1be-7a78c14e9813
1094-8074
10961910
Hebe pimeleoides
(
Cockayne and Allan, 1927
)
Figure 19
Material.
Present in 25% of the shelters with dry vegetation. Shelter-005: LX5406; Shelter-011: LX3230, LX3231; Shelter-012:
SL
6716; Shelter-015:
SL
6698; Shelter-016:
SL
6690,
SL
6692,
SL
6695,
SL
6696; Shelter-020: LX2945, LX2947, LX2960; Shelter-021: LX3149; Shelter-022:
SL
6593,
SL
6595; Shelter-025:
SL
6681; Shelter-028: LX2938; Shelter-030: LX2441, LX2468, LX2967; Shelter-032: LX2985; Shelter-037: LX2995, LX2996, LX2997, LX2998; Shelter-046: LX2567, LX2577; Shelter-047: LX3276; Shelter-049: LX3328; Shelter-054: LX3283; Shelter-055: LX3314; Shelter-058:
SL
6486; Shelter-062: LX3273; Shelter-072: LX3020; Shelter-073:
SL
6510; Shelter-084: LX2561, LX2895; Shelter-088: LX3287, LX3290; Shelter-090: LX3270; Shelter-109: LX3237, LX3238, LX3240; Shelter-115: LX5670.
FIGURE 19.
Hebe pimeleoides
cuticle morphology (Transmitted light microscopy). A. Abaxial surface showing relatively small papillae and stomatal complexes (LX2468, Shelter-92, scale bar equals 100 μm). B. Abaxial surface showing relatively large papillae and stomatal complexes (LX2960, Shelter-33, scale bar equals 100 μm). C. Abaxial surface detail showing slightly flanged papillae and stomatal complexes (LX2938, Shelter-39, scale bar equals 40 μm). D. Abaxial surface detail showing slightly smoother papillae and stomatal complexes (LX2947, Shelter-33, scale bar equals 40 μm). E. Adaxial surface showing lack of papillae and trichome bases (one is arrowed, LX2959, Shelter-33, scale bar equals 100 μm). F. Abaxial surface detail showing two stomatal complexes (LX2997, Shelter-51, scale bar equals 40 μm).
FIGURE 20.
Olearia
sp.
cuticle morphology (Transmitted light microscopy). A. Abaxial surface showing a dense mass of trichome bases obscuring most stomatal complexes (LX2495, Coprolite-13, scale bar equals 40 μm). B. Non-stomatal (adaxial) surface showing a trichome attachment scar extending over several epidermal cells (LX3147, Shelter-12, scale bar equals 40 μm).
Remarks.
This
Hebe
species
has small (
7-10 mm
long) leaves (i.e., it is not a ‘whip cord’). Fragments can be recognised by cuticle, which is unequally amphistomatic, with stomatal apertures surrounded by a sharply defined and irregularly shaped rim (often a narrow ellipse). On one leaf surface the area in between the stomata is relatively smooth and in the other, the normal epidermal cells each have a central papilla.