Monteiro published 'Delagoa Bay: its natives and natural history' in 1891, where she describes the wide range of flora from the region. One species she describes was a succulent of the aloe family, with very thick mottled leaves and heads of pale pink flowers. Monteiro sent samples to Kew Gardens in 1886, where it was cultivated and flowered in 1889. This species was then names after her, Aloe Monteiroæ.
