Dear Don: My breeding studies with Pachyneurium showed that all of the Central American species that we crossed would hybridize and this was true of a smaller number of South American species that we tried to hybridize but there were many Central and South American attempts to cross with failure. It thus appears that these two areas were separated for a very long time.
From: firstname.lastname@example.org [mailto:email@example.com] On Behalf Of Don Martinson
Sent: Wednesday, October 11, 2017 12:54 PM
Subject: [Aroid-l] Anthurium cross pollination?
To what extent are members of the Anthurium Section Pachyneurium intrafertile? I grow both Anthurium schlechtendalii and Anthurium watermaliense, neither of which has ever set seed. This year, they bloomed at the same time and were right next to another. The schlechtendalii inflorescence faded and dried, while that of the watermaliense appears to POSSIBLY have been fertilized. So was I simply fortunate to have the watermaliense self pollinate, or is there any chance that they might have crossed? Photos of all below.
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