Ribes sanguineum

Plate 6 gives an impression of growing damage with decreasing distance from the source. The red currant bushes (Ribes sanguineum) at station III looked better than those at station II but they were still more affected than those at the control site VI. The authors carefully measured growth rates of all exposed plants and ambient SO2 concentrations. 

Less widely distributed are the prodelphinidins, which yield delphinidin with acid, e.g. a prodelphini-din from Ribes sanguineum (Fig. 2). A profisetinidin has been reported from the heartwood of Acacia bai-leyana (Fig. 3). 

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