Фотография: OZ Lithops
Фотография: Matunai illustrated succulents
Источники:
http://ozlithops.com/?controller=product&path=14&product_id=552
https://matunaisucculents.storeinfo.jp/posts/1855686?categoryIds=440392
Продажа семян:
http://atomic-plant.de/start%20eng.html
http://ozlithops.com/?controller=product&path=14&product_id=552