The fruit of the cultivatedulluco(Ullucus tuberosus Loz.)has beenreferred to in the literatureeither as non-existing or as a berry, seldom as a dry fruit. The fruit of this species as well as the genus is described here for the first time, and is shown to be a dry and indehiscentnutlet of an obovate shape and bilaterally symmetrical cross-section. The thin testaof the seedis immediately insidethe thickened fruit wall. The embryo is strongly curved and encircles the relatively scanty perisperm.
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