Pyrus 



1575 



* Stipules persistent till the time of fruiting. 



3. Pyrus discolor, Maximowicz, Prim. Fl. Amur. 103, note (1859). 



Leaflets fifteen to seventeen, remotely placed on the rachis, i| to 2 in. 

 long, ending in a long acuminate point, pale and glabrous beneath. Fruit 

 pale pink. Readily distinguishable by its palmately cleft or lobed persistent 

 stipules. 



A small tree, wild in the neighbourhood of Peking. Sorbus pekinensis, 

 Koehne, 1 in Gartenflora, L., 406 (1901), which was described from plants raised 

 in Germany, is identified with this species by Schneider. 2 Small trees at Kew, 

 obtained from Spath and Lemoine, agree with a native specimen in the British 

 Museum, except that the buds are pubescent at the tip and not completely 

 viscid. 



II. Buds more or less covered with dense white tomentum. 



* Stipules early deciduous. 



4. Pyrus tianshanica, Franchet, in Ann. Sc. Nat. xvi. 267 (1883). 



Branchlets glabrous. Leaflets eleven to thirteen, 1 to 1^ in. long, f in. 

 broad, green and glabrous on both surfaces. Fruit in. in diameter, bright red. 



A shrub, about 10 ft. high, occurring in Turkestan, Afghanistan, and 

 western Kashmir. Introduced 3 into Kew in 1896, and described by Sir 

 J. D. Hooker, in Bot. Mag. t. 7755 (1901). This does not seem to thrive in 

 England, as the specimens which I have seen are stunted in growth and bear 

 small leaflets. 4 



5. Pyrus Aucuparia, Gaertner. See p. 1576. 



Branchlets pubescent. Leaflets eleven to fifteen, about 2 in. long, pale and 

 pubescent beneath. 



** Stipules persistent till the time of fruiting. 



6. Pyrus pohuashanensis, Hance, in Journ. Bot. xiii. 132 (1875). 



Leaflets thirteen to fifteen, 2\ to 3 in. long, f in. broad, pale and pubescent 

 beneath. Fruit f in. in diameter, orange-coloured. The persistent stipules are 

 obovate and shortly toothed. 



A small tree, discovered in 1874 on the Po-hua mountain, west of Peking, 

 by Bretschneider, who sent seed to the Arnold Arboretum. The trees which 

 were raised produced flowers and fruit 5 for several years previous to 1893 ; and 

 a seedling sent in that year to Kew is now about 20 ft. high and very thriving, 

 producing abundance of handsome fruit. 



III. Buds tipped at the apex with reddish hairs; scales glabrous, ciliate in margin. 



7. Pyrus Vilmorini, Ascherson and Graebner, Syn. Mitteleurop. Flora, vi. pt. 2, 



p. 90 (1906). 



1 Cf. also Koehne, in Mitt. D. Dend. Ges. 1906, p. 56. 2 Laubhohktinde, i. 669 (1906). 



3 It appears to have been introduced into the St. Petersburg Botanic Garden in 1889. Cf. Gard. Chron. xxv. 389 (1899). 



4 Schneider, Laubhohkunde, i. 668 (1906), describes this species under the name Sorbus thianshanica, Ruprecht, in 

 Mem. Acad. St. Petersburg, xiv. 46 (1869), and states that the leaflets are 2 in. long and over \ in. broad. 



6 Cf. Bretschneider, Hist. Europ. Bot. Disc. 1054 (1898). The trees in the Arnold Arboretum were considered for many 

 years to be P. discolor, Maximowicz ; but Rehder, in Mitt. Deut. Dend, Ges. 1 90 1, p. 117, showed that they were the same as 

 Hance's species, and named them Sorbus pohuashanensis. 



VI 2 I 



