Re: [Aroid-l] Syngonium

From: Tom Croat <Thomas.Croat at mobot.org> on 2018.09.11 at 16:43:52(24065) I agree with Eduardo. Syngonium angustifolium is much more of a weed than S. podophyllum. I remember that it was adorning the trees of the public circle in Balboa when I was working on my Revision of Syngonium and I had not found it anywhere in the wild at that time in Panama. Many neotropical aroids have been introduced in to the natural forests of Papua New Guinea. I was shocked to see so many such species in what I thought was virgin forests around Lae. Tom HTML +More From: aroid-l-bounces@www.gizmoworks.com [mailto:aroid-l-bounces@www.gizmoworks.com] On Behalf Of Eduardo Gonçalves Sent: Tuesday, September 11, 2018 9:23 AM To: Discussion of aroids Subject: Re: [Aroid-l] Syngonium Dear aroiders, As far as I have observed, the Syngonium which is broadly cultivated is Syngonium angustatum, not S. podophyllum. The main easy-to-observe difference is on male flowers, which are retuse (shallowly lobate, like a molar teeth) on apex on S. angustatum and truncate (blunt) on S. podophyllum. I took this in Tom’s revision of the genus (1981). All naturalized Syngonium I have seen in Brazil and around Miami are S. angustatum. Pictures I have seen from Southeastern Asia are S. angustatum as well. Syngonium auritum has subcoriaceus and pretty shiny leaves and is a lazy climber, seeming to prefer to be lurking around on topsoil. Material I have seen of S. podophyllum - only in Chiapas-Mexico and around San Jose in Costa Rica - climber like crazy and have softer leaves. By the way, I have checked my S. auritum in my backyard and they have exactly the same aspect as that on Peter’s picture. Very best wishes, Eduardo. On 11 Sep 2018, at 02:50, Peter Boyce wrote: here in cultivation auritum has leathery glossy leaf blades while podophyllum has thin matte leaf blades. This is auritum (not my image) On Tue, 11 Sep 2018 at 09:27, Jason Hernandez wrote: As long as we are on the subject of Syngonium, is there a reliable way to distiguish in the field between S. podophyllum and S. auritum? It matters because in the Dominican Republic, S. auritum is native, S. podophyllum is naturalized. Jason Hernandez _______________________________________________ Aroid-L mailing list Aroid-L@www.gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l _______________________________________________ Aroid-L mailing list Aroid-L@www.gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

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