Crataegus sp. 1

Stults, DZ & Axsmith, BJ, 2015, New plant fossil records and paleoclimate analyses of the late Pliocene Citronelle Formation flora, U. S. Gulf Coast, Palaeontologia Electronica (New York, N. Y.: 1991) 2 (6), pp. 1-35 : 18

Crataegus sp. 1 .

Figure 6.5–6.6

Description. One simple leaf, 2.0 cm long and 0.9 cm wide, obovate, L:W ratio 2:1, is attributed to Crataegus . Margin is shallowly lobed distally, crenations/serrations are also distal. Base is acute, decurrent. Apex is obtuse. Primary venation is pinnate. Secondary veins are craspedodromous, angles departing from the mid-rib at 30° to 40°. Tertiary, quaternary, and quinternary veins are irregular, reticulate. Crenations/serrations are irregularly spaced, sinuses angular, rounded teeth convex proximally and distally. This specimen is somewhat similar to extant C. spathulata .

Site Occurrence. Scarborough School.

Figures

FIGURE 6. Representative Oleaceae (continued), Platanaceae, and Roseaceae from the Citronelle Formation. 1. Fraxinus leaflet (UF 19210–062078), scale bar equals 1 cm. 2. Close-up of Figure 6.1 Fraxinus leaflet showing higher order venation, scale bar equals 5 mm. 3. Platanus occidentalis leaf (UF 19210–062079), scale bar equals 1 cm. 4. Platanus occidentalis fruit (UF 19211–062080), showing persistent style at arrow, scale bar equals 1 cm. 5. Crataegus leaf species 1 (UF19315–062081) similar to C. spatulatha, scale bar equals 5 mm. 6. Close-up of Figure 6.5 Crataegus leaf showing higher order venation, scale bar equals 2.5 mm. 7. Crataegus species #2 leaf (UF 19210–062082), wedge-shaped lamina similar to C. floridana, compare with Figure 7.1, scale bar equals 5 mm. 8. Close-up of Figure 6.7 Crataegus leaf showing higher order venation, scale bar equals 2.5 mm.