Under this name, in the August Bulletin of Torrey Botanical Club, Dr. Engelmann describes a new native rose, found by Dr. Parry and his exploring party in lower California in April last, forming dense thickets in the arid landscape; a much-branched shrub, two to four feet high, with showy pink or white flowers, and "a most striking and lovely species, distinguished from all other roses by its minute, deeply incised leaflets." Dr. Engelmann publishes it under the name of Rosa minutifolia.