Фотография: http://atomic-plant.de
Фотография: Matunai illustrated succulents
Источники:
http://atomic-plant.de/bilder/Lithops/L%20auc%20Danielskuil.html
https://matunaisucculents.storeinfo.jp/posts/3059761?categoryIds=440392
https://matunaisucculents.storeinfo.jp/posts/2482000?categoryIds=440392
Продажа семян:
http://atomic-plant.de/start%20eng.html
https://matunaisucculents.storeinfo.jp/posts/2482000?categoryIds=440392