Magazine  (Mar 1994)  Page(s) 10-13 v. 1 no. 1.  
 
Rosa roxburghii: the species, its forms and hybrids
Graham Stuart Thomas
During his experimental work with the parentage of roses at Cambridge in the second quarter of this century, Dr C.C. Hurst raised seedlings of this cross, one of which was named R. x micrugosa 'Alba'. Apart from being of rather more upright habit, it is in other respects a replica of the original but of important garden value because the white flowers are produced not only at midsummer, but onwards throughout the growing season. They are, moreover, very fragrant. This might prove to to be a fertile parent and thus bring both species into today's hybrids. They would be very hardy.

Book  (11 Jun 1993)  Page(s) 37.  
 
('Micrugosa Alba' (R. x micrugosa 'Alba') R. roxburghii x R. rugosa. Hurst (England) 1910. Description. The white form of R. x micrugosa.

Book  (1988)  Page(s) 160.  
 
location 203/4, R. x micrugosa alba hort (R. roxburghii x R. rugosa), CINNAMOMEAE, white, single, large, solitary, late-blooming, bushy, upright, 0.8-1 m, many bristles + prickles, medium green large matte-glossy leathery foliage, 7-11 leaflets, orange-coloured small-medium matte-glossy rounded very glandular fruit, upright extended persistent sepals

Book  (1984)  Page(s) 173.  
 
E. F. Allen. Roses of Interest.
'Micrugosa Alba'.....

Website/Catalog  (1983)  Page(s) 37.  
 
Rosa x microrugosa alba  A dense shrub with plentiful foliage and thorns. Bearing large, 3” diameter, single, pure white flowers with a silky texture. Orange-red globular fruit. Good Autumn colour. c.1910 F. H. W. Shade tolerant. (R) 5 x 4‘.

Book  (1973)  Page(s) 55.  
 
Graham Thomas. Autumn Heps.
A great and impressive shrub in growth and leaf is R. roxburghii normalis, whose large green heps are covered with prickles like those of a horse-chestnut, while its hybrid with R. rugosa, R. micrugosa, has heps of orange similarly adorned. This hybrid is a dense, very useful plant, covered with good foliage and in the F2 generation - known with white flowers instead of the usual pink - is recurrent flowering. This is a valuable and much neglected shrub and was raised by Dr. C. C. Hurst.

Magazine  (Mar 1964)  Page(s) vol. 1, no. 1, pp. 10-13.  
 
Rosa roxburghii: the species, its forms and hybrids
Graham Stuart Thomas
During his experimental work with the parentage of roses at Cambridge in the second quarter of this century, Dr C.C. Hurst raised seedlings of this cross [micrugosa], one of which was named R. x micrugosa 'Alba'. Apart from being of rather more upright habit, it is in other respects a replica of the original but of important garden value because the white flowers are produced not only at midsummer, but onwards throughout the growing season. They are, moreover, very fragrant. This might prove to to be a fertile parent and thus bring both species into today's hybrids. They would be very hardy.