Pyrus 



IS75 



* 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, \\ 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,^ in Gartenflora, L., 406 (1901), which was described from plants raised 

 in Germany, is identified with this species by Schneider.^ 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 th.e 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, i to \\ in. long, f in. 

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



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

 western Kashmir. Introduced^ 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.* 



5. Pyrus Aucuparia, Gaertner. Seep. 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, 'vs\ 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 ^ for several years previous to 1893 ; ^i^d 

 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. ^ Laubhohkutide, i. 669 (1906). 



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



* 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. 



' 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. 1901, p. 117, showed that they were the same as 

 Hance's species, and named them Sorbtis pohtuishanensis. 



VI 2 I 



