Curtis's Botanical Magazine, 1913, tab 8473
TAB. 8473
ROSA SERTATA
China
ROSACEAE. Tribe ROSEAE.
ROSA, Linn.; Benth. et Hook. f. Gen. Plant. vol. i. p. 625.

1 and 2, stamens; 3, a carpel; 4, ripe fruits:—all enlarged except 4, which is of natural size.

Rosa (Cinnamomeae) sertata, Rolfe; species ex affinitate R. Webbianae, Wall., a qua habitu laxiori, aculeis tenuioribus, foliis longioribus et fructu angustiori differt.

Frutex ramosus, 1-1.5 m. altus; ramuli glauci, aculeis geminatis rectis gracilibus circiter 1 cm. longis armati, vel rarius inermes. Folia conforta, 4-10 cm. longa, 7-11-foliolata; rhachis sparse glanduloso-setulosa et aculeolata; foliola subsessilia, elliptica vel elliptico-oblonga, obtusa, acute dentata, subtus glauca, 1-2 cm. longa; stipulae adnatae, anguste oblongae, acutae vel subobtusae, ciliato-glandulosa 8-10 mm. longae. Flores specosi, rosei vel roseo-purpurei, 5-6 cm. diametro, in ramulorum brevium apicibus pauci vel solitarii; pedunculi 1.5-3 cm. longi, glanduloso-setulosi vel laeves. Receptaculum anguste ovoideum, glanduloso-setulosum vel laeve, 5-10 mm. longum. Calycis lobi ovato-lanceolati, caudato-acuminati, interdum foliacei, puberuli, glanduloso-setulosi vel Iaevi. 1-2 cm. longi, subpatentes. Petala late obcordata. Filamenta glabra, 3-5 mm. longa, antheris aureis. Fructus ovoideus, apice attenuatus, saturate ruber, circiter 2 cm. longus, sepalis persistentibus. Achaenium basi et dorso villoum, 3 mm. longum; styli villosi in columnam 4 mm. longam cohaerentes. — R. Webbiana, Vilmorin in Fruticet. Vilmorin. p. 93; nec — R. A. ROLFE.

The handsome Rose here figured is one grown from Chinese seeds obtained by Mr. E. H. Wilson on behalf of Messrs. J. Veitch and Sons, which flowered in the Kew collection in June 1910. The flowers show that it is identical with another plant collected by Mr. A. Henry, which the late Professor Crepin thought might be a small-leaved form of R. macrophylla, Lindl., and with two other Chinese plants presented by Messrs. Vilmorin, Andrieux, as R. Webbiana, Wall. Neither of the suggestions hitherto offered is, however, wholly satisfactory. From R. macrophylla the species here described as R. sertata differs in its much smaller rounded leaflets and in numerous other details; from R. Webbiana it is easily distinguished by its laxer habit, its few slender straight stipulary thorns, and its more slender, beaked fruit. It is more nearly allied to R. Willmottiae, Hemsl., a plant figured at t. 8186 of this work, than it is to R. Webbiana, but R. Willmottiae is a much smaller plant in all its parts than the subject of our plate. In gardens R. sertata will be valued for its graceful habit; it makes long slender shoots which in the following season become gracefully arched and bear in mid-June a profusion of its beautiful flowers followed by richly coloured fruits, while it has the finely cut, daintily formed leaves and the glaucous stems that have rendered its allies R. Webbiana and R. Willmottiae such favourites among wild roses. It has so far succeeded well in stiff loam and gives promise of being a more vigorous shrub in gardens than R. Webbiana. So far the only experience of its propagation has been from seed, but it is probable that, like R. Webbiana, it may be increased by layers and perhaps by autumn cuttings.

DESCRIPTION.Shrub, branched, 3-5 ft. high; twigs glaucous, armed with straight, slender, geminate prickles over 1/3 in. long, rarely unarmed. Leaves clustered, 1-4 in. long, 7-11-foliolate, rachis sparingly glandular-setulose and prickly; leaflets subsessile, elliptic or elliptic-oblong, obtuse, sharply toothed, glaucous beneath, 1/3-3/4 in. long, stipules adnate, narrow-oblong, acute or somewhat blunt, ciliate-glandular, 1/3 in. long. Flowers showy, rose or rose-purple, 2-2 1/4 in. across, few or solitary at the ends of abbreviated twigs; peduncles 2/3-1 1/4 in. long, glandular-setulose or smooth. Receptacle narrow-ovoid, glandular-setulose or smooth, 1/5-1/3 in. long. Calyx lobes ovate-lanceolate, caudate-acuminate, sometimes leafy, puberulous, glandular-setulose or smooth, 1/3-3/4 in. long, somewhat spreading. Petals wide-obcordate. Filaments glabrous, 1/8-1/5 in. long; anthers golden-yellow. Fruit ovoid, narrowed at the top, deep red, about in. long, crowned by the persistent sepals. Achenes villous at the base and on the back, 1/8 in. long; styles villous, cohering in a column 1/6-in. long.