1920] REHDER. NEW SPECIES, VARIETIES AND COMBINATIONS 61 



Pyrus Calleryana Decne. f. graciliflora, forma nov. 



A typo recedit ramulis apicem versus tomento canescenti denso ad se- 

 cundum annum perslstente vestitis, basin versus glabris, floribus minoribus 

 circiter 2 cm. diam., staminibus dimidia petala superantibus, antheris 

 roseis. — Arbor: folia ab initio glabra margine tantum villosa: inflorescentia 

 glaberrima, 7-10-flora, laxa; pedicelli 1.5-2.5 cm. longi; styli fere semper 2. 



Cultivated at the Arnold Arboretum; raised from seed collected by Mr. E. H. 

 Wilson, at Patung Hsien, Hupch, in 1907; type specimens collected May 6, 1919, 

 preserved in tlie herbarium of the Arboretum. 



This form looks at flowering time quite distinct from the plants we con- 

 sider typical P. Calleryana on account of its looser and slenderer inflor- 

 escence and the smaller flowers with pink, not purple anthers. 



Pyrus Calleryana f. tomentella, forma nov, 



A typo recedit ramulis junioribus dense albo-tomcntosis, annotinis 

 glabrescentibus vel glabris, foliis initio tomento floccoso obtectis mox gla- 

 bris costa media utrinque villosa excepta, saepe, praesertim eis turionum, 

 argutius serrulatis nee crenato-serrulatis, inflorescentiis, pedicellis calyci- 

 busque albo-villosis. 



Cultivated at the Arnold Arboretum; raised from seed collected by Mr. E. H. 

 Wilson in Hupeh hi 1907; type specimens collected May 10 and September 22. 1918, 

 preserved in the herbarium of the Arboretum. 



This form is readily distinguished from the type by the dense white to- 

 mentum of the young growth and of the inflorescence, which on the 

 branchlcts often persists until the following year. 



Pyrus Calleryana var. Fauriei, Nakai mscr. in. sched. Herb, Imp 

 Univ. Tokyo ex Nakai in Toyko Bot. Mag. xxx. 30 (1916), pro synon. 

 P. faurtVf Schneider, 111. Handb. Laubholzk. i. 666, fig. 363d' (1906); in 

 Fedde, Rep. Sp. Nov. iii. 121 (1906), — Rehder in Proc. Am. Acad. l. 238 

 (in nota) (1915). — Nakai in Coll. Sci. Tokyo, xxvi. art. 1, 182 (FL Kor. 

 I.) (1909); Fl. Sylv. Kor, vi. 54, t. 24 (1916). 



Korea. Pro v. Keiki: mountain slopes near Keijyo (Seoul), September 23, 

 1918, £. 7/. Wilson (No. 10743; shrub 1-2 m.; fruit russet spotted); Seoul, May 

 1901, U. Faurie (No. 78, type, ex Schneider); "Syon Ouen, circa sepulturam," 

 May 30, 1906. U, Faurie (No. 310) ; Kazan near Suigcn, May 24, 1917, £. //. 



Wihon (No. 8480; tree 8 m.); same locality, September 2, 1917, 5. Tokuda, 



Judging from the specimens before me F. Fauriei is only a variety of 

 P. Calleryana, smaller in all its parts than the type; the leaves are some- 

 times broadly cuneate at base and rather thin. 



Pyrus Kawakamii Hayata in Jour. Coll. Sci. Tokyo, xxx. art. 1, 99 (1911); 

 Icon. PI. Formos. i. 243 (1911). — P. Koehnei Koidzumi in Jour. Coll. Sci. 

 Tokyo, xxxiv. art. 2, 57 (1913), pro parte. — Rehder in Proc. Am. Acad. 

 L. 238 (1915), quoad plantam Formos., non Schneider. 



Formosa. Kyoshiryo, prov. Nanto, road-side, alt. GG7m., February 11, 1918, E. IL 

 Wilson (No. 983,3; bush 4 m.); same loeality, thickets. November 4, 1918, £. //. 

 Wilson (No. 10876; tree to 10 m.); in garden of Chinese at Sozon, prov. Taikoku, 

 October 11, 1918. E. IL Wilson (No. 10785; tree 5 m.). 



This species had been referred as a synonym to P. Koehnei by Koidzumi 



