Complex sentence: Both names are often used to refer to one division of "Rosicrucians", now based in San Jose, called the "Ancient Mystic Order of Rosae Crucis" (AMORC), whose emblem is a cross with a single rose in the center.
Split into simpler sentences: Both names are often used to refer to one division of "Rosicrucians", now based in San Jose, called the "Ancient Mystic Order of Rosae Crucis" (AMORC). The emblem of the AMORC is a cross with a single rose in the center.