Notes from Gerald Peters (June 21, 2000): "A. SPS 1 - Brought to VCU and carried as S1. This isolate was originally identified as an A. filiculoides by Steve Talley at UC Davis. It was changed to A. species after studying the perine ultrastructure of the megasporocarp (details in publication). It was carried at CRKRL as ST-SI-CF after we received it from Tom Warne in February 1983. It was collected by Steve Talley at Sherman Island/Expt. 1052 in agricultural Sacramento County, CA. He found it about 10 meters S of State Route 160 and 1.9 kilometers N of the Antioch Bridge over the San Joaquin River. It is not in the IRRI collection.