This web site is dedicated to Erica D., emeritus guide at a Canadian botanic garden. In 1995 Erica collected her plant notes in a brown binder which was reproduced for other guides. Now we are publising Erica's notes online, along with additional updated information. Many thanks to Erica whose work has given us a framework to expand our guide knowledge base. More about Erica and the Bollwyler Pear dedicated to her.