Browse Items (23 total)

scirp_lac_10x_cones.jpg
Cone phytoliths typical of sedges

Supporting literature:
Mehra, PN and Sharma, OP 1965 Epidermal silica ceIls in the Cyperaceae. Botanical Gazette 126: 53-58.

Ollendorf, A.L., 1992. Toward a classification scheme of sedge (Cyperaceae)…

quercus sp. 10 starch from seed.png
Shape: ovoid starch grains
Surface: smooth
Outer wall: single
Hilum: semi-eccentric
Extinction cross: bent arms
Lamellae: absent
Fissures: small longitudinal natural fissure

Plant part: nut

Supporting literature:
Weber, S. and Price,…

p_sativum_40x_starch_02a.jpg
Shape: ovoid and/or elongated, non-lenticular starch grains.
Surface: wrinkled
Outer wall: single
Hilum: centric
Extinction cross: central, "often elongated on the same axis as the fissure" (Henry et al. 2009: Table 2)
Lamellae: sometimes…

P_coccineus_40x_starch_1a.jpg
Shape: ovoid - ellipsoid / kidney shaped (reniform) starch grains and sphere shaped starch grains (transitory)
Surface: smooth-wrinkled
Outer wall: single
Hilum: centric
Extinction cross: bold, yet distorted medially as both y and x…

lens_culin_starch_40x_3a.jpg
Shape: ovoid and sometimes kidney shaped/reniform (non-lenticular)
Surface: smooth - wrinkled
Outer wall: single
Hilum: centric
Extinction cross: bilaterally symmetrical and often diffuse (Henry et al. 2009: Table 2).
Lamellae:…

Hordeum vulgare starch 4c.png
Shape: Lenticular - Circular/sub-circular in plan view, biconvex in side view.
Surface: smooth, sometimes with very faint dimples. Surface facets may be present, or a slight indentation at the hilum.
Outer wall: single
Hilum: centric &…

BereRondel.jpg
Rondels, diagnostic at Family level: Poaceae (Pooideae and Chlorideae).

These rondels were common in this modern sample of Hordeum inflorescence bracts alongside the elongate dendritic forms.

BereEchinate.jpg
Elongate dendritic long cells (multi-cellular articulated) - Diagnostic

Plant part: cereal inflorescence

Bere3epidermalMC.jpg
Elongate dendritic long cells (multi-cellular articulated) - Diagnostic

Plant part: cereal inflorescence

equi_fluv_20x-epidermalsheet4.jpg
Articulated epidermal and stomata cells.

Stomata and epidermal cells are diagnostic at the genus level (Equisetum). Epidermal cells feature "granulate surfaces and elevated projections along the edges" (Morris et al. 2009: 346; Piperno…
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