io; — ROSA ALBERTI 
NATIVE OF CENTRAL ASIA 
Rosa Alberti : caule brevi, suberecto, ramoso ; aculeis subulatis, rectis, patulis, 
aequalibus ; foliolis 5-7, parvis, obovatis, obtusis, simpliciter vel subsimpliciter 
dentatis, utrinque glabris ; rhachi glabra ; stipulis adnatis, apicibus liberis, 
brevibus, utrinque glabris ; floribus solitariis ; pedunculis brevibus, erectis, nudis ; 
calycis tubo oblongo, nudo ; lobis elongatis, simplicibus, lanceolatis, dorso glabris ; 
petalis magnis, pallide luteis ; stylis liberis, hirsutis ; fructu ovoideo, nudo, sepalis 
persistentibus coronato. 
R. Alberti Regel in Act. Hort. Petrop. vol. viii. p. 278 (1883). — Koehne, 
Deutsche Dendrol. p. 298 (1893). 
Stem suberect, much branched, 2-3 feet long ; prickles subulate, equal, 
spreading, scattered. Leaflets 5-7, very small, obovate, obtuse, glabrous on both 
surfaces, teeth simple or nearly so ; petioles glabrous ; stipules adnate, with short 
free tips, glabrous on both surfaces. Flowers solitary ; peduncles short, naked. 
Calyx-tube oblong, naked ; lobes lanceolate, simple, i-f in. long, glabrous beneath. 
Petals broad, pale yellow, an inch long. Styles free, hairy. Fruit ovoid, naked, 
crowned by the persistent sepals. 
This is the plant grown as Rosa Alberti in English gardens, 
though it does not exactly agree with Regel’s short original diagnosis. 
Regel’s plant was raised in the Botanic Garden of St. Petersburg, 
from seeds collected by his son, Dr. Albert Regel, on the Thian-schan 
mountains in Central Asia. Our plant closely resembles Rosa spino- 
sissima L. in habit and foliage, but differs from the yellow-flowered 
variety of that species in its equal prickles, leaflets only 5-7 in number, 
and long-acuminate sepals. 
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