Website/Catalog  (1985)  Page(s) 16.  
 
Cooper’s Burmese (Previously R. gigantea) (R. laevigata) this fantastic, creamy-white rose must be carefully placed on a southern aspect when it’s large, glossy foliage will provide a foil for large, single, scented flowers of immense attraction. Very vigorous. Int. 1927. (S) 35 x 20‘.

Website/Catalog  (1982)  Page(s) 33.  
 

Rosa gigantea (Cooper’s Burmese) This fantastic creamy white rose must be carefully placed on a southern aspect when it’s large glossy foliage will provide a foil for large single scented flowers of immense attraction. Very vigorous. Int. 1889. T. (S) 35 x 20’.

Book  (1981)  Page(s) 107.  
 
Lists Cooper's Burmese as a cultivar of Rosa laevigata; questions the characterization of 'Cooper's Burmese' as a form or hybrid of Rosa gigantea and instead suggests that it was a seedling of unknown parentage that most closely resembles Rosa laevigata. Detailed explanation of Roland Cooper's collection and distribution of seed from which 'Cooper's Burmese' was grown. Preserved specimens of plants grown from the same batch of seed that produced 'Cooper's Burmese' have been re-examined and shown to be Rosa laevigata.

Book  (1978)  Page(s) 147.  
 
'Cooper's Burmese  Rose'   Climber  White  Midsummer      P3    H2 
This rose is also known as R. cooperi, although there is no evidence that it is a species; and those  who appreciate that fact refer to it as Cooperi.  Why not use the more informative name that heads this paragraph? Burma is Burma, but Cooper may live anywhere.  An expedition in Burma collected seed, which was sent to Cornwall from Rangoon by Cooper, and distributed to interested people in England. I find no record to tell who raised this particular seedling, but a plant of it was reported well established at the National Rose Society's Trial Ground in Haywards Heath in 1937; and another, less happy, in the Royal Botanic Garden, Edinburgh. It can grow in Scotland, according to a report in the Rose Annual 1976 of a vigorous plant at Crathes Castle near Banchory, well to the north  east of that country......   ‘Cooper's Burmese Rose' has white flowers and highly polished leaves, leading to the theory that it may be a hybrid between R. gigantea and R. laevigata. 

Book  (1965)  Page(s) 95.  
 
'Cooper's Burmese Rose' or 'Cooperi'. Raised about 1931. A plant was received by Mr Courtney Page at the National Rose Society's Trial Ground, then at Haywards Heath, Sussex, from an unrecorded source, and no other plants were traced at Kew or Edinburgh where Mr Cooper's seeds, collected in wild in Burma, were being grown. It grew well on a pillar at Haywards Heath, but used to suffer in cold winters. The leaves are extremely glossy, the flowers single, pure white, and the plant somewhat resembles R. laevigata. An interesting undetermined rose suitable for a sheltered wall.

Book  (1953)  Page(s) 139.  
 
["Rosa Cooperii", by Roland E. Cooper]
"The large and interesting collection of Rose species gathered together by the late Mr. Courtney Page at the N. R. S. Trial Ground is always worth a visit". So wrote Mr. Edward A. Bunyard in 1937 in The New Flora and Silva, and he goes on: "When I arrived in June, one Rose was outstanding - that grown under the name of "Cooper Burmah". It was then over 12 feet high. The flowers are white, about 4-5 inches in diameter, the foliage is a dark brownish greenwhich it keeps all the winter. It is best described as a smaller laevigata and may be a hybrid of this with R. gigantea". R. gigantea is a variety of R. odorata but has normall creamy white flowers, but sometimes has blush to pale pink flowers and is then R. odorata v. crubescens. The late Mr. Page considered the Rose to be distinctive enough to have a name of its own and called it R. cooperi.
In the Botanic Garden at Maymyo, Burma, there was a fine R. gigantea which grew beside a spring and was trained on trellis all about it to appease th water spirits of the Burmese. Consequently, since plant news gets far abroad, the Political Agent of Sikkin a few years after 1922 heard of this plant and wrote to Burma for cuttings of it. .....