I bought an orchid on eBay the other day. Nathan and I went to pick it up. last weekend. The seller was an elderly man with a think European accent. He had a beautiful green house packed full of weird and wonderful plants.
I told him I bought the orchid he was selling because I liked the heart-shaped leaves. He looked at me with a smile. The species name phyllocardia means 'heart shaped'. Aha! Of course. Shame on me. As a biologist I should have made the connection.