Dicotylophyllum sp.
publication ID |
https://doi.org/ 10.37520/fi.2022.005 |
persistent identifier |
https://treatment.plazi.org/id/6E40384F-924E-CE58-5F27-D90BAE1749CE |
treatment provided by |
Felipe |
scientific name |
Dicotylophyllum sp. |
status |
|
Pl. 6, Fig. 7
M a t e r i a l. IBUG 2052b.
D e s c r i p t i o n. Incomplete leaf or leaflet; lamina elliptic, l × w about 55 × 26 mm, ratio l/w about 2.1, base convex, apex incomplete, (?) acute; margin densely serrate, teeth small, varying slightly in size, rather regularly spaced, tip and sinus acute; midvein straight; secondaries semicraspedodromous, near leaf base slightly S-shaped, otherwise arch-like curved towards apex (convex), widely, not very regularly spaced, partly forked, branches looping at some distance from margin; exmedial veinlets looping further or running into teeth; intersecondaries occasionally present; tertiaries oblique to midvein, (forked) percurrent to reticulate; further venation reticulate.
R e m a r k s. This specimen resembles Fraxinus leaves but the tertiary venation, which is in between percurrent and reticulate, precludes that assignment.
Differing from Dicotylophyllum sp. K see that taxon.
Differing from Dicotylophyllum sp. FF by broader shape, more dense and less sharp marginal teeth, more widely spaced, convex secondaries and percurrent to reticulate tertiaries.
Differing from Fraxinus sp. by more narrow angle of secondaries and (forked) percurrent tertiaries.
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.