Note 6 — Chapter XVII · SAṄKÂŚYA. BUDDHA’S ASCENT TO AND DESCENT FROM THE TRAYASTRIṂŚAS HEAVEN, AND OTHER LEGENDS.
James Legge translation
Eitel gives the name Utpala with the same Chinese phonetisation as in the text, but not as the name of any bhikshuṇî. The Sanskrit word, however, is explained by ‘blue lotus flowers;’ and Hsüan-chwang calls her the nun ‘Lotus-flower colour (蓮花色);’—the same as Hardy’s Upulwan and Uppalawarnâ.