4' t -4 eee } i f , Figure 2, Portulaca oleracea. . Plants showing '"die-back" culminating i n plackene®: he shrivelled remnants lying in and on the light, coral sand. Many of t dead patches produced viable seed. The seedlings grew vigorously a avparently would live through to fruition, . UNS eoery Ra fk tNty. OF a NS We 6 athe