Tas. 7666. 
ROSA XANTHINA. 
Native of Central Asia and Afyhanistan. 
Nat. Ord. Rosacea.—Tribe Roszz. 
Genus Rosa, Linn. ; (Benth. & Hook. f. Gen. Plant. vol. i. p. 625.) 
Rosa (Pimpinellifoliw) wanthina; frutex 3-4-pedalis, erectus, ramosissimus, 
spinosus, fere eglandulosus, ramulis rubris glabris, aculeis semipollicaribus 
homomorphis confertis rectis rigidis basi compressis et valde dilatatis, 
foliis ramulis floriferis confertis 3-1 poll. longis 6-9-foliolatis, foliolis 
ovato-oblongis oblongis v. orbicularibus ad } poll. longis serrulato-dentatis 
subtus praecipue glandulosis, stipulis oblongis subacutis integerrimis, 
floribus in ramulos brevissimos terminales solitariis ad 1 poll. diam. 
aureis, pedunculis brevibus glaberrimis v. glanduloso-pilosis, sepalis 
lanceolatis integerrimis v. apices versus paucidentatis extus glandulosis 
intus tomentosis, petalis sepalis longioribus obovato-oblongis, stylis 
liberis lanuginosis apicibus glabris, fructibus globosis ad 3} poll.. diam. 
gracile pedunculatis glaberrimis nitidis sepalis reflexis coronatis, 
acheniis primum villosis demum glabris. 
R. xanthina, Lindl. Ros. Monog. p. 132 (nomen). Crépin in Comptes rendus 
Soc. Bot. Belg. vol. xxv. pars ii. p. 14. Franch. in Nouv. Arch. Mus. 
Par. Ser. II. vol. v. (Plant. David.), p. 117, t. 15/2. Forbes et Hemsl. in 
Journ, Linn, Soc. Bot. vol. xxiii. p. 255. Koehne, Deutsch. Dendrolog. 
p. 300, 
R. platyacantha, Schrenk in Bull. Acad. Petersb. vol. x. (1842), p. 254. — 
Tedeb. Fl. Ross. vol. ii. p. 75. 
R. pimpinellifolia, var. platyacantha, Crép. Mater., fase. v. p. 319. 
R. Ecae, Aitchis. in Journ. Linn. Soc. Bot. vol. xviii. (1880), p. 54, et xix. (1882), 
p- 162, t. viii. Oliv. in Hook, Ic. Plant. vol. xiv. p. 21, t. 1829, Christ. in 
Boiss. Fl. Orient. Suppl. p. 207. 
The discovery of Rosa xanthina,a central Asiatic species, 
in a single valley of Afghanistan, is a noteworthy fact 
in geographical distribution, for no other collector in 
that country had met with it. In the Kuram Valley of 
Afghanistan it abounds, both wild, and cultivated (for 
hedges), forming with Amygdalus eburnea the greater part 
of the scrub in the stony ridges of the Harieb district, 
at an elevation of six thousand to seven thousand feet, 
where it was found by the late Dr. Aitchison, F.R.S., when 
accompanying General (now Lord) Roberts, on the survey 
of that valley. It is a plant of very wide distribution. 
Lat. 33° N. is its southern as well as its western limit, 
Jutx 1st, 1899, 
