Larson, DW 1981: Differential wetting in some lichens and mosses: the role of morphology. - The Bryologist84: 1-15. [RLL List # 111-48 / Rec.# 11107] Keywords: WATER RELATIONS/ PHYSIOLOGY/ UMBILICARIA/ DIFFERENTIAL WETTING/ MORPHOLOGY/ RHIZINES/ ISIDIA
Abstract: 10 figures. 3 tables. ["The results show that rhizines play a major role in water relations of some species, but not in all. Apothecia in Umbilicaria muhlenbergii have no role in wateruptake, nor do the surface papules of U. papulosa or the surface isidia of U. deusta, although the lamellae of U. muhlenbergii are exceedingly important. The upper and lower cortices of lichens were also shown to have a variable capacity for water absorption at an exceedingly rapid rate. Conversely, any poikilohydric plant showing a low surface area to weight ratio absorbs water very slowly."]