There are several societies and groups dedicated to Streptocarpus enthusiasts. Hybridisation of Streptocarpus is conceptually very simple. Within the "Streptocarpus" subgenus "Streptocarpus", there are two main forms, the plurifoliates and the unifoliates. Dibleys Nurseries is an award-winning leading grower of streptocarpus plants. By seed&colon; Streptocarpus seed is generally very fine. The conservation status of "Streptocarpus ionanthus" has been classed as near-threatened. For information on "Streptocarpus" subgenus "Streptocarpella" section "Saintpaulia", see the article on "Saintpaulia". Streptocarpus flowers come from leaves, so more leaves means more flowers. These two "Streptocarpus" subgenera do not interbreed. Streptocarpus flowers are five-lobed, salverform, zygomorphic tubes. Members of the "Streptocarpus" subgenus "Streptocarpella" are very different in form to those mentioned above. The most common "Streptocarpus" houseplant is of the rosulate type. Examples are "Streptocarpus prolixus", and "Streptocarpus polyanthus" ssp "polyanthus". "Saintpaulia" ("African violet") is a separate section within "Streptocarpus" subgenus "Streptocarpella". Common activities include imparting knowledge, sharing plant material for propagation, and Streptocarpus shows.