Lux A., Kopunec R., Gaseous and liquid phase water uptake by the stem surface of Astrophytum (Cactaceae), Environmental and Experimental Botany, 1992, 32(1):75-81, doi: 10.1016/0098-8472(92)90032-W
The experiment concerns uptake of liquid and gaseous water through the Astrophytum stem surface. It analyses the role of hairs and surface properties in the water balance.