Reference » Encyclopedias


1902 Encyclopedia
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Features articles from 9th and 10th editions of encyclopaedia britannica.

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Featuring videos, text, images and audio for every topic.

Plant Encyclopedia
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Features a searchable database of garden and house plant information organized alphabetically. Also includes images and cultivation tips.

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The peer-reviewed open-access encyclopedia, where knowledge is curated by communities of experts.

The Encyclopedia of House Plants
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Provides listings of house plants with information and pictures. Includes online store, plant identificator, news, events, and newsletter.