19211 REHDER, NEW SPECIES, VARIETIES AND COMBINATIONS 33 



out distinctions between his two species in regard to the shape of the 

 calyx and to the color of the petals, but these do not seem to me of any 

 value. The different forms introduced later under various names, as 

 cited in the synonomy above, seem to be referable to this variety; they 

 have the under side of the leaflets soft-pubescent, though their shape 

 differs somewhat in the different forms. There is little or no difference 

 between S. Korolkowii and S. sinensis as cultivated in this Arboretum; 

 both have oblong-ovate to oblong-lanceolate leaves, rounded to truncate 

 or even subcordate at the base and the keel and wings of the flowers 

 have a slight purplish tinge toward the margin and purple claws, while 

 S. tomentosa of which I have not seen flowers, has according to a speci- 

 men from a young plant shorter and broader leaves, broad-cuneate to 

 rounded at the base. The shape of the leaves, however, may vary with 

 age, as a specimen from a young plant of S. Korolkowii which I collected 

 about 25 years ago in Spaeth's nursery has broad-cuneate leaflets, while 

 our mature trees received from the same nursery have the leaflets rounded 



or truncate at the base. 



Of the origin of these different forms nothing definite is known. So- 

 phora Korolkowii came according to Koehne, Henry and Bean from the 

 Arboretum at Segrez, France; judging from its name the plant may have 

 been introduced by Korolkov who sent seeds to Lavallee from Turkestan 

 before 1880, but S. japonica is not known in Turkestan. The author 

 citation "Cornu" may be explained by the fact that seeds had been 

 distributed by the Jardin des Plantes of which Cornu was director at 

 that time. Sophora sinensis also came into gardens by the way of France, 

 at least on a specimen I collected at Spaeth's nursery about 25 years 

 ago I had noted that the plant was received from Croux, a nursery firm 

 near Paris. Of the origin of S. tomentosa I know nothing beyond the 

 fact it was advertised by Dieck in 1887. Of the two Mongolian forms 

 introduced by Dieck, one of which according to Koehne agrees with S. 

 Korolkouni, I have not seen specimens. 



The following specimens of wild plants I refer to this variety: 



China. Hupeh, Patung Hsien, alt. 1-3000 ft., July, August and September 



1907, E. II. Wilson (No. 651). Szech'uan, Chentu Plain, alt. 1-2000 ft., July 



1908, E. II. Wilson (No. 2557). 



Korea. Keiki province, Kongo, 30 miles northeast of Keijyo, July 8, 



1917, E. II. Wilson (No. 8741 "hairy and glabrescent form, truly wild 7 '). 



In these specimens the leaflets are broad-cuneate to nearly rounded 

 at base, but not truncate as in the form cultivated as S. Korolkowii. In 

 the specimen from Szech'uan the pubescence is more villose and dis- 

 tinctly yellowish along the midrib. 



Sophora japonica var. violacea Carri&re (in Rev. Hort. I860, 465), 

 which had been confused by Dippel with S. chinensis or sinensis hort., a 

 synonym of the preceding variety, is nearer to typical S. japonica in the 

 pubescence of its leaves, but the wings and the keel of the flowers are 

 stained with light purple and the flowers appear very late in autumn. 



