A Catalogue of the Exotic Plants Cultivated in the Mauritius,
at the Botanic Garden, Monplaisir, Reduit, and other places p. 15-16 (1816)

Linnaean Names English Names French Names Where Indigenous Where Cultivated
ROSA Provincialis Province rose Rosier de provins South of Europe Naturalized
Sempervirens Evergreen rose Rosier toujours vert Germany Red. & other gard.
Semperflorens China rose Rosier de la Chine China Naturalized
Chinensis Pale China rose Petit rosier de l'Inde China Naturalized
Longifolia Long-leaved rose Rosier de tous les mois, de l'Inde India Naturalized
Macrocarpa T Large fruited rose Rosier des Indes India Naturalized
Mutabilis T Changeable rose Rosier double de Bengale India Naturalized
Alba White rose Rosier blanc India Naturalized
Bracteata Bracteated rose Rosier blanc da la Chine China, Intro. by Governor Farquhar 1813 Reduit
Pusilla T. Minute rose Rosier nain de l'Inde China Cultivated in gard.

Rosa pusilla was imported to England by Sweet, who renamed it R. Lawranceana.

Cossigny (1799) wrote, "In 1767, I brought from Bengal, where I had been taking a trip, all I could procure me in the kind of plants, among others the tree of incense, which I have myself presented to the national garden of the ile de France, the bocol or bolsery; the orange of Patna which was killed by the ravages of locusts, the tricolor rose, ..." Whether this is the Rosa mutabilis mentioned in the catalogue is an open question. It does indicate that at least one rose reached the island from India in 1767, which may well have become naturalized.

A Catalogue of Exotic Plants Cultivated in the Island of Mauritius,
at the Royal Botanic Garden Pamplemousses, at his Excellency the
Governor's Garden at Reduit, at Mon Plaisir, Bois Cheri, &c. p. 23 (1822)

Systematic names Vulgar names Native place Where cultivated Time and by whom introduced
ROSA Bracteata   China In Gardens Governor Farquhar
Pusilla   India In Gardens  
Centifolia   Asia In Gardens  
Alba   Europe Reduit  
Borbonica   Bourbon Bot. Garden & Reduit Governor Farquhar
Semperflorens   China In Gardens  
Sempervirens   Germany In Gardens  
Burgundica   Europe In Gardens  
Chinensis   China In Gardens  
Macrocarpa   India Botanic Garden Gov. Farquhar, 1822
Longifolia   India In Gardens  
Scandens     Reduit Gov. Farquhar, 1822
Canina     Hab. of Mr. Vincent  

Note that Mutabilis was listed in 1816, but not in 1822. Also, Macrocarpa, reportedly introduced by Gov. Farquhar in 1822, was already present in 1816.

It is odd that in the 1822 edition, the genera Rosa, Rubus and Fragaria were assigned to the Linnaean class Decandria Trigynia (10 stamens, 3 styles) which isn't even close.

The identity of R. mutabilis (1816) is open to question, however it is possible that it was the Rosier Tricolor introduced from Bengale.

Voyage au Bengale, suivi de notes critiques et politiques et d'une notice 2: 255-256 (1799)
Joseph-François Charpentier de Cossigny de Palma

En 1767, j'apportai du Bengale, où j'avois été faire un voyage, tout ce que je pus me procurer dans le genre des végétaux, entr'autres l'arbre d'encens, dont j'ai fait moimême présent au jardin national de l'ile de France; le bocol ou bolsery; l'oranger de Patna, qui a péri par le ravage des sauterelles; le rosier tricolor; le titan-côté, dont la graine sert à clarifier les eaux bourbeuses du Gange, et dont les individus qui sont sur ma terre de Palma, sont encore les seuls qui existent dans la Colonie; l'arbre nommé bois-noir, dont la végétation est si prompte, qui est un arbre de haute-futaie, propre à beaucoup d'usages, et dont le charbon a paru être le meilleur, d'après mes propres expériences, pour la fabrication de la poudre à canon, et dont j'ai fait de grandes plantation, pour le compte du gouvernement, au port de la Montagne, et dans les terrains dépendans du jardin National. Je rapportai en outre du Bengale, des tourterelles et des pigeons-paons. Les premières se sont multipliées dans mon quartier, d'où elles se répandront avec le tems, dans toute la Colonie.

In 1767, I brought from Bengal, where I had been taking a trip, all I could procure me in the kind of plants, among others the tree of incense, which I have myself presented to the national garden of the ile de France, the bocol or bolsery; the orange of Patna which was killed by the ravages of locusts; the tricolor rose; the titan-side, whose seed is used to clarify the muddy waters of the Ganges, and which those that are on my land of Palma are still the only that exist in the Colony; the tree called Black Wood, whose vegetation is so rapid, which is a tree of the high-forest, suitable for many uses, such as charcoal and appeared to be the best, from my own experience, for the manufacture of gunpowder, of which I have made a great plantation, on behalf of the Government, at the Port of Montagne and dependent land of the National garden. I brought also from Bengal, doves, pigeons and peacocks. The former have increased in my neighborhood, where they will spread with time, throughout the colony.


Catalogue des plantes cultivées aux jardins botanique et de naturalisation de l'ile Bourbon p. 47 (1820)
Nicolas Breon

Rosier

ROSA semperflorens de tous les mois. orn. L,. J. B,
burgundiaca de Bourgogne.  orn. L., J. B,
lucida. Wild. luisant. Am. s. L,. J. B.
sinica de Chine. orn. L., J. B.
unica unique. orn. L., J. B.
carnea cuisse de nymphe. orn. L., J. B.
moschata musqué. Barbarie. orn. éco. L., J. B.
variété double.
bengalensis du Bengale. orn. L., J. B.
variétés à fleurs doubles.
à fleurs pourpre doubles.
à fleurs blanches doubles.
borbonica de Bourbon. Ile B. orn. L., J. B.
pucilla nain de Chine. orn. L., J. B.
bracteata blanc de Chine. orn. L., J. B.
macrocarpa des Indes. orn. L., J. B.
L. Ligneux
J. B. Cultivées au jardin de naturalisation.
Am. s. Amérique septentrionale
orn. ornement
éco. économique

Catalogue des plantes cultivées aux jardins botanique et de naturalisation de l'ile Bourbon. pp. 65-66 (1825)
Nicolas Breon

Rosier

ROSA semperflorens de tous les mois. orn. L,. J. B,
burgundiaca de Bourgogne.  orn. L., J. B,
lucida. Wild. luisant. Am. s. L,. J. B.
sinica de Chine. orn. L., J. B.
unica unique. orn. L., J. B.
carnea cuisse de nymphe. orn. L., J. B.
moschata musqué. Barbarie. orn. écon. L., J. B.
varietas double.
bengalensis du Bengale. orn. L., J. B.
variétés à fleurs doubles.
à fleurs pourpre doubles.
à fleurs blanches doubles.
borbonica de Bourbon. ile B. orn. L., J. B.
pusilla nain de Chine. orn. L., J. B.
bracteata blanc de Chine. orn. L., J. B.
macrocarpa des Indes. orn. L., J. B.
multiflora multiflore. orn. L. J. B.
lindlei. Wal. Napoul. L. J. B.
Am. s. Amérique septentrionale J. B. Cultivées au Jardin botanique
écon. économique Wild. Wildenow
orn. ornement Wal. Wallich
L. ligneux    

CybeRose note: Even Breon failed to mention any Damasks growing on the Ile Bourbon.