Ilex sp.
publication ID |
https://doi.org/ 10.26879/550 |
persistent identifier |
https://treatment.plazi.org/id/039E0517-F66A-FFB9-D72C-3817FC21F881 |
treatment provided by |
Felipe |
scientific name |
Ilex sp. |
status |
|
Figure 2.1 View FIGURE 2
Description. One simple, petiolate leaf is attributed to Ilex . Petiole attachment is marginal. The blade is a notophyll (4 cm long, 1.8 cm wide), shape ovate, symmetrical with a L:W ratio 2:1. The margin is unlobed, serrate. The base is acute, straight, symmetrical. The apex is acute, straight, the terminal apex possibly retuse (as occurs in some extant Ilex species such as I. decidua and I. coricea ). Primary vein framework pinnate. Two basal veins are present. The secondary vein framework is mixed craspedodromous and semicraspedodromous. Secondaries are irregularly spaced, excurrent, and arcuate. Tertiary, quaternary, and quinternary veins are more difficult to characterize probably because the leaf was coriaceous, however, they appear to be irregular reticulate. Teeth are small, of a single order, regularly spaced, 6–8 per cm. Sinuses are angular. Teeth are straight/convex proximally, straight distally, apices spinose.
Site Occurrence. Perdido Park.
Remarks. Of the 35 native species of Ilex in the United States, approximately 40% occur within the southeast. Ilex is first documented in the Late Cretaceous; however, the common ancestor of all modern Ilex species has been estimated as Miocene as the most basal lineages of the genus were extinct by that time ( Manen et al., 2010). In North America, Ilex seeds have been described from the early Miocene Brandon Lignite of Vermont (Tiffney, 1977).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.