Book  (2013)  Page(s) 168.  
 
A similar problem arises with a rose which, for simplicity, will be referred to intially as Cantabrigiensis. This very attractive clear yellow single rose originated as a seedling in the Cambridge University botanic garden and was recognised in 1931. On the basis of its morphology its putative parents were thought to be R. hugonis and R. sericea so that it could be referred to as R. x cantabrigiensis. Austin (1988) refers to it as R. pteragonis Cantabrigiensis. Matters fall into place if we regard R. pteragonis as itself a hybrid, R. hugonis X R. sericea, and refer to it more informatively as R. x pteragonis.

Magazine  (2006)  Page(s) 30-36.  Includes photo(s).
 
In "ROSA x PTERAGONIS 'CANTABRIGIENSIS" by Sally Petitt and Tim Upson:
Rosa 'Cantabrigiensis' is the best known of a number of so-called Cambridge roses, resulting from work on the hybridisation of roses by the geneticist Dr Charles Chamberlain Hurst (1890-1947) during the 1920's....Hurst's widow Rona, who had trained as a cytologist...collated and edited his finding and presented them to the University. Today these manuscripts are house in the Cambridge University Main Library, while Hurst's specimens can be found in the herbarium at the Botanic Garden...In her accompanying notes for the herbarium specimens, Rona Hurst writes 'the favourite Rosa Cantabrigiensis was a natural hybrid from the two...species R. sericea and R. hugonis at the CBG.' Further information...can be found in 'Genetics of the Rose' published in The Rose Annual of 1929...Further information on the origin of this hybrid is contained in the Annual Report of the Botanic Syndicated of 1923...[where] it is reported that 'The other new form is apparently a spontaneous hybrid between the Himalayan R. sericea Lindl. and the Chinese R. hugonis Hemsl. This hybrid has the yellow pentamerous flowers of R. hugonis and the habit of growth and the glandular leaves of R. sericea.'...It even noted that the two parents were in flower together... giving every opportunity for cross fertilization...The epithet R. x pteragonis Krause...is available for this hybrid.....Rosa 'Cantabrigiensis' is a medium-sized erect shrub reaching 2-2.5 metrers in height, with arching stems...The young stmes which are densely bristly and red glandular prickles are typical of R. sericea. The solitary fragrant flowers are soft-yellow in colour fading to cream....These are ...reminiscent of R. hugonis....slightly pales than this parent and also a little larger...compared to the white 4-petalled flowers of R. sericea,,,The typical number of leaflets...is 7-11. The small globular, orange-red hips...are intermediate between the small round dark red fruits of R. hugonis and the pear-shaped crimson and yellow fruits of R. sericea....This elegant hybrid has been held in high esteem since it was first shown in 1931...it is more suitable for the larger garden....It is unclear how this hybrid rose came into general cultivation, though it is recorded as having been listed by Harkness Roses...in 1937....R. 'Cantabrigiensis' is a relatively easy plant for the garden...it is best in a sunny situation but will perform satisfactorily in semi-shade....It requires no specific pruning except for the removal of dead wood. It is readily propagated from hardwood cuttings and easily grown on its own roots.

Book  (2000)  Page(s) 142.  Includes photo(s).
 
‘Cantabrigiensis’/’The Cambridge Rose’ = Arbuste. Sur un pied bien établi, ce sont des milliers d’églantines jaune paille qui éclosent en début d’été. Simples et odorantes, elles s’épanouissent sur de courtes tiges parmi son fin feuillage de fougère… petits fruits ronds rouge orangé, un peu masqués à vrai dire, par les jeunes pousses de l’été… En latin, cantabrigiensis signifie simplement «de Cambridge» . Jardin Botanique de Cambridge, UK, 1931. Sans doute Rosa hugonix x Rosa sericea hookeri. RHS Cory Cup 1931 + RHS Award of Garden Merit 1994.

Book  (Sep 1993)  Page(s) 105.  Includes photo(s).
 
Cantabrigiensis (Rosa pteragonis cantabrigiensis) Modern Shrub. Parentage: Probably R. hugonis x R. sericea. Description... single pale yellow... Introduced around 1935, it apparently originated at the Cambridge Botanic Garden in England, with credit being usually given to Dr. C.C. Hurst.

Book  (Apr 1993)  Page(s) 73.  
 
Cantabrigiensis Shrub, pale yellow, single, (R. x pteragonis cantabrigiensis (Weaver) Rowley; R. x cantabrigiensis Weaver; 'Tha Cambridge Rose'); R. hugonis x R. sericea hookeri; Cultivated before 1945. Description.

Book  (Feb 1993)  Page(s) 25.  Includes photo(s).
 
Cantabrigiensis (R. pteragonis cantabrigiensis). Parentage: R. hugonis x R. sericea. England 1931. Description and cultivation... fernlike foliage... medium yellow...

Book  (1993)  Page(s) 64.  Includes photo(s).
 
[Listed under "Wild Roses and Their Cultivars"] A chance hybrid … appeared in Cambridge Botanic Garden in c. 1930. The parents were probably Rosa xanthina forma hugonis and Rosa sericea. Spring flowering. Height: 7 ft. Scented.

Book  (1988)  Page(s) 167.  
 
location 150/4, R. x pteragonis Krause f. cantabrigiensis (weaver) Rowley (R. hugonis x R. sericea var. hookeri), PIMPINELLIFOLIAE, Botanical Garden of Cambridge, before 1931, light yellow, single, good fragrance, large, solitary, floriferous, bushy, upright, arching, broad, 2-5 m, well-branched, many bristles + prickles, light green small foliage, 7-9 leaflets, orange-red medium size matte-glossy flat-rounded fruit with thickened stalks, upright persistent short sepals, few hips

Book  (1988)  Page(s) 16.  Includes photo(s).
 
Cantabrigiensis This hybrid occurred by chance in Cambridge Botanic Gardens in about 1931. It makes a robust upright bush up to 2 m high, with bristly young shoots, and somewhat cupped, scented flowers. Hips orange red. Said to be a hybrid between R. xanthina f. hugonis and R. sericea.

Website/Catalog  (1986)  Page(s) 33.  
 
Rosa cantabrigiensis.....Good hips most seasons. F.