Фотография: http://atomic-plant.de
Фотография: OZ Lithops
Фотография: Matunai illustrated succulents
Источники:
http://atomic-plant.de/bilder/Lithops/L%20schw-C75.html
http://ozlithops.com/?controller=product&path=14&product_id=550
https://matunaisucculents.storeinfo.jp/posts/1851885?categoryIds=440392
Продажа семян:
http://atomic-plant.de/start%20eng.html
http://ozlithops.com/?controller=product&path=14&product_id=550
https://www.ahhnursery.com/index.php?route=product/product&path=25_69_101&product_id=258