<p>The long <i>cryptoporticus</i> with apsidal ends and adjacent rooms (Cima pl. 2 nos. 1-6) may be attributed with some confidence to the *Horti Lamiani. An inscribed water pipe attests building activity in the Severan period, but the style of the pavement and column fragments discovered in the <i>cryptoporticus</i> (no. 1) suggest a date in the early-Imperial period; furthermore, the walls of the small adjacent room on the NW side of the <i>cryptoporticus</i> (no. 2) were built in <i>opus reticulatum</i>. From this, Cima concludes that there were indistinguishable building phases over the centuries and that the original structure was built in <i>opus reticulatum</i> at the end of the 1st c. B.C., then lavishly restored by Caligula, who is known to have acquired the Horti Lamiani (Cima 55). Although Häuber is strictly correct only to represent the small subterranean room (no. 2) on her map of the Augustan Esquiline (Häuber map 3), the present map includes the <i>cryptoporticus</i> (no. 1), since an original Augustan phase has been suggested for this structure. The rooms adjoining the <i>cryptoporticus</i> to the S (nos. 3-6) are not shown, given the discovery of the Severan water pipe in room no. 3.</p>