05-01-2011, 08:42 AM
Join Date: Mar 2006
Location: Brunswick, Germany
iTrader Positive Rating: 100%
| | Re: Echinodorus ID
That looks to me like a plant labeled as "Echinodorus cordifolius" in the botanical garden Berlin, also cultivated in the botanical garden Göttingen (Germany) as "E. cordifolius ssp. fluitans".
Probably the same cultivated plant, with large blotches on young leaves, is depicted as Echinodorus fluitans in Rataj's Echinodorus revision from 2004.
Compared with what I believe is typical E. cordifolius, the petiole tissue of the B.G. Berlin "cordifolius" is softer (and much softer than E. grandiflorus). Petioles triangular in cross section (as Daniel mentions), somewhat ridged. Also the peduncle is triangular (petioles and peduncles terete in typical E. cordifolius and E. grandiflorus). I didn't find pellucid markings in the leaves. Inflorescences branched, decumbent and always with plantlets, as in E. cordifolius. I didn't find ripe fruits. It appears to me like something between E. cordifolius and E. paniculatus.
Last edited by miremonster; 05-01-2011 at 01:40 PM..