94— ROSA XANTHINA Lindl. 
Rosa xanthina : caule brevi, valde ramoso ; ramis brunneis ; aculeis multis, 
subaequalibus, patulis, robustis, basi conicis ; foliolis 9-1 1, oblongis, obtusis, parvis, 
viridibus, simpliciter serratis, utrinque glabris ; rhachi glabra, aciculata ; stipulis 
adnatis, angustis, apicibus liberis parvis ; floribus solitariis ; pedicellis brevibus, 
nudis ; calycis tubo globoso, nudo ; lobis ovatis, acuminatis, parvis, simplicibus ; 
petalis pallide luteis, magnitudine mediocribus ; stylis liberis, pilosis ; fructu 
globoso, nudo, sordide rubro ; sepalis patulis, persistentibus. 
R . xanthina Lindley, Ros. Monogr. p. 132 (1820). — Franchet in Nouv. Arch. 
Mns. ser. 2, vol. v. p. 269, t. 15, fig. 2 (. Plant ae Davidianae , vol. i. p. 117 [1884]) 
(1883). — Forbes & Hemsley in Journ. Linn . Soc. vol. xxiii. p. 254 (1887). — Koehne, 
Deutsche DendroL p. 300 (1893). — Palibin in Act . Hort. Petrop. vol. xiv. p. 118 
(PI. Sin. -Mongol.) (1895). — Hooker f. in Bot. Mag. vol. lv. t. 7666 (1899). — C. K. 
Schneider, III. Handbuch Laubholzk. vol. i. p. 587 (1906). 
R. platyacantha Schrenk in Bull. Phys. Math. Acad. Sci. St. Petersbourg , 
vol. x. p. 254 (1842). — Ledebour, FI. Ross. vol. ii. p. 75 (1844). — Regel, Act. Hort. 
Petrop. vol. v. p. 31 1 (Tent. Ros. Monogr. p. 27 [1877]) (excl. syn.) (1878). 
R. pimpiuellifolia, var. platyacantha Crepin in Bull. Soc. Bot. Belg. vol. xiv. 
p. 165 (Priniit. Monogr. Ros. fasc. iii. p. 369) (1873); vol. xviii. p. 379 (Primit. 
Monogr. Ros. fasc. v. p. 625 [1880]) (1879). 
R. Ecae Aitchison in Journ. Linn. Soc. vol. xviii. p. 54 (1880) ; vol. xix. p. 161, 
t. 8 (1882). — Oliver in Efooker Icon, vol xiv. p. 21, t. 1329 (1881). — Christ in 
Boissier, FI. Orient. Suppl. p. 207 (1888). 
Stems short, brown, much branched ; prickles dense, subequal, stout, spreading, 
i-i in. long, with a compressed conical base, not in infrastipular pairs. Leaflets 
9-1 1, small, oblong, obtuse, simply serrated, green, glabrous on both surfaces; 
petioles glabrous, aciculate ; stipules narrow, adnate, with small, toothed, free tips. 
Flowers always solitary ; pedicels short, naked. Calyx-tube small, globose, naked ; 
lobes simple, ovate-acuminate, i-} in. long, naked on the back. Petals pale yellow ; 
corolla in the type ij-iijr in. diameter. Styles free, densely hairy. Fruit globose, 
dull red, ^ in. diameter, naked ; sepals spreading, persistent. 
Rosa xanthina much resembles the yellow-flowered varieties of 
Rosa spmosissima L., but the prickles are subequal and much stouter 
and the fruit is dull red instead of bright brown. It ranges from 
Afghanistan and the Altai Mountains to the northern provinces of 
China. Lindley thus described it from a Chinese drawing of a double- 
flowered form : 1 “A Rose with all the appearance of Rosa spinosissima 
1 Ic. Piet. Bibl. Lambert. 
2 77 
