Article (magazine)  (Jan 2020)  
 
Rosa × archipelagica is a spontaneous hybrid between Rosa rugosa and R. maximowicziana distributed, together with its parental taxa, on the coast of a small Stenina Island in the Peter the Great Gulf, the Sea of Japan (Russian Far East). Its hybrid origin is confirmed by direct electropherogram comparisons of PCR products and maximum likelihood analyses of nuclear ITS 1–2 and plastid intergenic spacers trnH–psbA and ndhC–trnV. The plastome markers indicate R. maximowicziana as the maternal genome donor of Rosa × archipelagica, however, one specimen shows also signs of heteroplasmy

Other  (1998)  
 
A new for science intersectional hybrid is decribed as Rosa archipelagica Tchubar = R. rugosa Thunb. x R. maximowiciana Regel.

Magazine  (1997)  Page(s) 67,69.  
 
[From "Rosa x archipelagica -- an intersectional hybrid from the Island of Stenin." by E. A. Tchubar]
p. 67: Frutex. Caulis 0,3-1,5 m alt. v. hrostratus 2,5-7,5 m lg. aculeatus. Stolones floriferi densa pilosis et aculeaatis et glandulosis. Aculei pudescentibud, variotypis: erectis aciculiformes et falcaciformes. Folia imparipinnata, folioli 5-9, obovato-ovata supraglabrata rugosa, subtus secus nervos tomentosa-pilosa, margine dentatis glandulis; petioli foliorum tomentoso-pilosa, infra aculeatis; stipulae in ahice subcaudato-attentuatis, margine glandulis. Inflorescentia cormdosiformes, 8-12-floribus, flores (4)4.5-7.4(8) cm dm.; petala albo-rosea; pedicelli 3-5 cm lg. sub inflorescentia pilosa et glandulis. Lobi calycis indivisa, attenuati in apice folioliformis, supra glandulis et strigiusculis intus dense pudescentis, fructificaatione persistens. Fructi globosis 10-12 cm dm., rudidus, strigosis et glandulis.
Typus: Oriens Extremus Rossicus, Prov. Primorskensis ("Primorskyi kraj", sinus Petri Magni, Reservatum Marinum Extremiorientale, insula Stenini, terrasae litoralis, 20 VII.1997. Т.F. Тchubar .

p. 69: Frutex. Caulis 0,3-1,5 m alt. v. hrostratus 2,5-7,5 m lg. aculeatus. Stolones floriferi densa pilosis et aculeaatis et glandulosis. Aculei pudescentibud, variotypis: erectis aciculiformes et falcaciformes. Folia imparipinnata, folioli 5-9, obovato-ovata supraglabrata rugosa, subtus secus nervos tomentosa-pilosa, margine dentatis glandulis; petioli foliorum tomentoso-pilosa, infra aculeatis; stipulae in ahice subcaudato-attentuatis, margine glandulis. Inflorescentia cormdosiformes, 8-12-floribus, flores (4)4.5-7.4(8) cm dm.; petala albo-rosea; pedicelli 3-5 cm lg. sub inflorescentia pilosa et glandulis. Lobi calycis indivisa, attenuati in apice folioliformis, supra glandulis et strigiusculis intus dense pudescentis, fructificaatione persistens. Fructi globosis 10-12 cm dm., rudidus, strigosis et glandulis.
 

Magazine  (1997)  Page(s) 67-69.  Includes photo(s).
 
p. 69
A new hybrid Rosa archipelagica Tchubar (Rosa rugosa Thunb. x Rosa maximowicziana Regel) in characterized by a combination of morphological traits of paternal species: leaves wrinkled, bright; thorns scattered, varied in length, shape and hardiness; inflorescence corymbose-paniculate, with 8-12 white-rose flowers, (4)4.5-7.4(8) cm in diameter, pistils slightly compressed in column, free, pubescent; stems stout or horizontally sarmentouse. The population of R. archipelagica at littoral terrace was found to consist of several dozens of specimens.
I think the following were transliteration errors:
hrostratus = prostratus
densa = dense
pudescentibud - pubescentibus
imparipinnata = (correct, but a little obscure for "odd-pinnate")
ahice = apice
pudescentis = pubescentis
supraglabrata = supra glabrata
rudidus = rubidus ?
I still can't make sense of cormdosiformes.

On p. 68 there seems to be an illustration, but the Google snippet view only shows the caption, and more Russian text I can't read.