Tas. 7755. 
PYRUS TIANscHANICA. 
Native of Central Asia, 
Nat. Ord. Rosacem.—Tribe Powrs. 
Genus Pravs, Linn. ; (Benth, & Hook. f. Gen. Plant, vol. i. p. 626.) 
Pruxvs (Sorbus) tianschanica; arbor — foliis impari-pinnatis glaberrimis 
(novellis tomentosis), foliolis 6~7-jagis lanceolatis acuminatis serrulatis 
basin versus integerrimis subcoriaceis supra saturate viridibus opacis 
subtus pallidis, nlis lanceolatis branneis caducis, paniculis corymbo- 
sis axillaribus givasbale laxifloria, floribus ad } poll. diam. breviter 
cellatia, bracteis minutis subvlatis caducis, calycis pubescentis lobis 
triangularibas acutis, petalis albis, carpellis 5 hireutis, fructu 
globoso § poll. diam. 
P. tianschanica, Franch. in Ann. Sc. Nat. Ser. vi. vol. xvi. (1883) p. 287. 
P. thianschanica, Rupr. ex Regel, Gartenfl. vol. xl, (1891) p. 7, f. 4. 
Sorbus tianschanica, Rupr. Sert. Tiansch. p. 46. 
The Mountain Ash here figured is the close ally and 
Central Asiatic representative of the European P. Aucu- 
it wvered by Baron Osten Sacken and Dr. 
gel, during their expedition to the Tianschan 
7. It has also been collected in about the same 
latitude, but much further east, in the mountains of the 
Chinese Province of Kansu (north of the Gobi desert), by 
Przewalski. 
The specimen figured is from a small tree in the 
Arboretum of the Royal Gardens, Kew, which was pur- 
chased in 1896 from Messrs, Transon Bros., Orleans, 
France, which flowered in May, 1900, and fruited in the 
following July. 
Descr.—A small tree, with the habit of P. Aucuparia, 
young shoots tomentose. Leaves about six inches long, 
shortly petioled, impari-pinnate ; leaflets six to seven pairs 
and a terminal, two inches long, lanceolate, acuminate, 
serrulate, quite glabrous, rather thick in texture, upper 
Jaxvant Ist, 1901. 
