6o— ROSA CALOCARPA 
(ROSA RUGOSA x CHINENSIS) 
Rosa calocarpa : caule satis alto, arcuato ; aculeis densis, vel gracilibus et 
rectis, vel robustioribus et leviter falcatis ; foliolis 5-7, oblongis, acutis, simpliciter 
late dentatis, facie viridibus, parce pubescentibus, dorso pallidis, pubescentibus ; 
rhachi pubescente, aciculata, haud glandulosa ; stipulis adnatis, apicibus liberis, 
parvis, ovatis ; floribus saepe pluribus, corymbosis ; pedicellis brevibus, leviter 
aciculatis ; calycis tubo globoso, nudo ; lobis simplicibus, apicibus elongatis, pubes- 
centibus, dorso glandulosis, parce aciculatis ; petalis sordicle rubris, late cuneatis ; 
stylis liberis, inclusis, pubescentibus ; fructu parvo, globoso, rubro, nudo vel basi 
parce aciculato ; sepalis denium deciduis. 
R. rugosa calocarpa Andre in Rev. Hart. p. 129, fig. 35 (1891). 
R. rugosa x indica Crepin in Bull ’ Soc. Bot. Belg. vol. xxxiii. p. 122 (1894). 
R. chinensis x rugosa Keller in Ascherson & Graebner, Syn. Mitteleur. FI. 
vol. vi. p. 371 (1902). 
Stem moderately tall, arching ; prickles copious, passing gradually into aciculi, 
slender and straight, or more robust and slightly hooked. Leaflets 5-7, oblong, 
acute, 1-2 in. long, simply openly toothed, green and slightly pubescent on the upper 
surface, pale and pubescent all over beneath ; petioles pubescent and aciculate, not 
glandular ; stipules adnate, with small ovate free tips. Flowers often several, 
corymbose ; pedicels short, slightly aciculate. Calyx-tube globose, naked ; lobes 
simple, long-pointed, pubescent, glandular and slightly aciculate on the back. Petals 
dark red, broadly cuneate, middle-sized. Styles free, included, pubescent. Fruit 
small, globose, bright red, naked or slightly aciculate towards the base; sepals finally 
deciduous. 
Rosa calocarpa is one of the many beautiful Rosa rugosa Thunb. 
hybrids raised by Bruant of Poitiers. It was described by Edouard 
Andre in the Revue Horticole of 1891 and put into commerce in 1895. 
It was one of a batch of seedlings resulting from Rosa rugosa being 
crossed with the common China Rose. Bruant noticed among the 
seedlings one with very bright pink flowers smaller than the type but 
more regular in form. The plant was kept under observation, and 
blossomed very freely from spring until late in the summer, and in 
autumn was covered with clusters of brilliant reel fruits which kept their 
colour and beauty to the end of the year, notwithstanding the intense 
189 BB 
