Received as Citrus erythrosa. Cold tolerant, similar with Changsha mandarin. (Information accompanying incoming budwood)This was in the same shipment of whatever from China (see CRC 3981 accession card) but Dr. Bitters wants this one in the variety collection. Our current C. erythrosa (CRC 3292)) traces back to an o. p. seedling and may not be true-to-type. (EM Nauer, 04/1988)
Dr. Bitters says this is incompatible on Troyer and Carrizo, so we will propagate it on Cleo (probably). However, the seedling line of C. erythrosa (CRC 3292) is thriving on Carrizo and C35 at 12B-29-15,16. How so? Perhaps it is not true C. erythrosa. C. erythrosa is supposed to be cold tolerant, similar to Changsha mandarin (according to USDA info which came with this import). (EM Nauer, 08/1989)
This was received as C. erythrosa with the cultivar name 'Caoshixiangju' and the apparent Institute identifier "1-11-12". Apparently someone in Riverside decided that since it had the same binomial as PI 539190 (= RCRC 3292) it must be identical and so applied the same Japanese cultivar name 'Kobeni mikan'. However, the actual identity of this accession with PI 539190 is unknown and the cultivar name 'Caoshixiangju' should be used. Archival materials on file at NCGRCD and CVC suggest that Japanese and Chinese sources of C. erythrosa may not be identical (materials currently maintained in "Citrus Germplasm China" file). Note that this accession is still under quarantine restrictions so it cannot be evaluated or compared with anything. (RR Krueger, 08/26/2011)