Dicotylophyllum sp. I
publication ID |
https://doi.org/ 10.37520/fi.2022.005 |
persistent identifier |
https://treatment.plazi.org/id/6E40384F-9249-CE5F-58DF-DE19A8E24819 |
treatment provided by |
Felipe |
scientific name |
Dicotylophyllum sp. I |
status |
|
Pl. 4, Fig. 15
M a t e r i a l. NHMW 1878/6/9176.
D e s c r i p t i o n. Probably petiolate leaf, petiole not preserved; lamina broadly ovate, l × w = 41 × 30 mm, ratio l/w = 1.4, base broad cuneate, apex (?) bluntly acute; margin entire except for few, widely spaced, tiny blunt teeth in apical part of lamina; midvein straight, distinctly decreasing in thickness towards apex; secondaries brochidodromous to semicraspedodromous in apical part, arising at steep angles near base, higher up at moderate angles, basal pair almost paralleling margin; secondaries near base slightly converging towards midvein before running rather straight towards margin, near margin curved towards apex; secondaries forked, forkings increasing in number towards margin; higher order venation not visible.
R e m a r k s. Leaf shape and major veins are reminiscent of Hedera .
Differing from Dicotylophyllum sp. Q by more numerous and forking secondaries arising at steeper angles, absence of intersecondaries, cuneate base and tiny, blunt marginal teeth in apical part.
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