Rubus sp.

Pole, Mike, 2022, A vanished ecosystem: Sophora microphylla (Kōwhai) dominated forest recorded in mid-late Holocene rock shelters in Central Otago, New Zealand, Palaeontologia Electronica (a 1) 25 (1), pp. 1-41 : 13

Rubus sp.

Figure 10

Material. Present in 19% of the shelters with dry vegetation. Shelter-002, LX3338; Shelter-003: LX5421; Shelter-010: LX3185; Shelter-013: SL 6704; Shelter-025: SL 6680; Shelter-027: SL 6462; Shelter-029: LX5808; Shelter-033: LX2988, LX2989; Shelter-042: LX2599; Shelter-048: LX3324; Shelter-052: SL 6532, SL 6533, SL 6534, SL 6536; Shelter-055: LX3317; Shelter-056: SL 6429, SL 6431, SL 6433; Shelter-080: LX3016; Shelter-088: LX3288; Shelter-093: LX3303; Shelter-094: LX3005; Shelter-099: LX3025, LX3026, LX3027; Shelter-103: LX2521; Shelter-112: LX5514.

Remarks. Abaxial cuticle is easily recognized on the basis of its massive, hollow, flanged trichome attachments. The stomatal complexes are in areoles, relatively small, and with indistinct outlines and set among epidermal cells with highly sinuous outlines. Several species of Rubus occur in the region today. Distinction based on cuticle is not possible.

Figures

FIGURE 10. Rubus sp. cuticle morphology (Transmitted light microscopy). A. Abaxial surface, showing a typical massive, flanged and hollow trichome attachment, at left, and more poorly staining cuticle with stomatal complexes in the upper right (LX2775, Coprolite-8, scale bar equals 100 μm). B. A patch of stomatal complexes, showing their typically poorly defined outlines and the sinuous walls of the epidermal and subsidiary cells (LX2818, Shelter-96, scale bar equals 100 μm).