8;— ROSA SPINOSISSIMA. van HISPIDA Koehne 
Rosa spinosissinia, vtvc . hispida : a typorecedit caule altiori, foHolis majoribus, 
floribus sulphureis multo majoribus. 
R. spinosissiuia, var. hispida Koehiie, Deutsche Deiidyol, p. 300 (1893). — Rehder 
in Bailey, Cycl. Am. Hort. vol. iv. p. 1557 (1902). 
R. hispida Sims in Bot. Mag. vol. .x.xxviii. t. 1570 Poiret) (1813). 
R. lutescens Pursh, FI. Amcr. Sept. vol. ii. p. 735 (1814). — Lindley, Ros. 
Mouogy. p. 47, No. 29, t. 9 (1820). — Torrey & Gray, FI. N. Amer. vol. i. p. 462 
(1838). 
Stem erect, branched, 4-5 feet high ; prickles irregular, straight, moderately 
robust, passing gradually into aciculi. Leaflets 7-1 1, oblong, obtuse, green, |-i in. 
long, simply toothed, glabrous on both surfaces ; petioles glabrous, aciculate ; stipules 
adnate, with small lanceolate free tips. Flowers solitary ; pedicels naked. Calyx- 
tube globose, naked ; lobes ovate, simple, \ in. long, not leaf-pointed. Corolla 
sulphur-yellow, 2^-3 in. diameter. Styles free, densely villous, not protruded. 
Fruit globose, dark brown, glabrous, ^-f in. diameter, crowned with the persistent 
sepals. 
Rosa spinosissima, var. hispida is a yellow-flowered variety nearly 
allied to var. ochroleiica. It was growing in 1 8 1 3 in the Physic Garden 
at Chelsea, where it had been established for many years. A specimen 
preserved in Sir Joseph Banks’ herbarium was gathered in Dr. 
Pitcairn’s garden at Islington as far back as 1781. There is a good 
drawing in the Botanical Magazine. From its being called the 
“Yellow American Rose” Pursh was led into the mistake of includino- 
• • • , , 
it in his F lora of N orth America. 1 1 only differsfrom Rosa spinosissinia, 
var. altaica m the sulphur-yellow colour of its flowers. Its fruit does 
not differ from that of the typical Rosa spinosissinia L. It comes 
true from seed. 
The specimen from which our plate was drawn is somewhat off 
type in the armature, which should be like that of the type. 
259 
