HIPPOCASTANACEAE, — AESCULUS 499 
ovoideis, 1.3 mm. longis; pistillum in floribus masculis ad stylum caly- 
cem vix v. paullo superantem glabrescentem disco lobulato insidentem 
reductum; in flore fertili ovarium ovoideum, 4-5 mm. longum, rufo- 
tomentosum; stylus apice glabro excepto dense breviter villosus, cum 
ovario circiter 3 em. longus. Capsula 3-valvis, inermis, verruculosa, 
flavo-brunnea, inaequaliter ovoidea, vix pyriformis, 3-4 cm. longa, 
mucronata, plerumque monosperma, valvis tenuibus, fragilibus, in 
sicco 1.5-2 mm. crassis; semen subglobosum, 3-3.5 em. diam. casta- 
neum, hilo magno albido suborbiculari 2.5-3 em. diam. circiter tertiam 
partem seminis occupante. 
Western Szech'uan: Hsin-wén-ping, Min valley, alt. 1000 m., 
June 1, 1908 (No. 200, type); Nanch'uan, A. von Rosthorn (ex Diels). 
Western Hupeh: north and south of Ichang, woods, alt. 1300-1800 
m., September 1907; Hsing-shan Hsien, woods, alt. 1300-2000 m., May 
25, June and September 1907; Fang Hsien, woods, alt. 1600-2000 m., 
October 1907; Changlo Hsien, woods, alt. 1300-2000 m., May and 
June 1907; Changyang Hsien, woods, alt. 1300-1600 m., April 6, 1907 
(all under No. 200); without locality, June 1900 (Veitch Exped. No. 
1303). Eastern Szech’uan: south Wushan, A. Henry (Nos. 5892, 
7203, 72033); “ Qu-kia-ki, Ou-tan-scian, North Siho,” C. Silvestri 
(Nos. 1388, 1389, 3097, ex Pampanini). 
. This beautiful tree has been usually confused with A. chinensis Bunge, which differs 
In its nearly glabrous short-petiolulate leaves sparingly pilose only on the veins 
below and cuneate at the base, in the smaller flowers and chiefly in the subglobose 
slightly depressed fruit truncate and slightly impressed at the apex, with thick 
walls, in the dry fruit 3-4 mm. thick, and in the smaller seeds with the hilum oc- 
“upying one half or more than one half of the surface of the seed. It is also closely 
allied to A. indica Colebrooke, which differs in its larger flowers with much broader 
; in the inflorescence with less crowded ascending ramifications and in the 
cuneate glabrous leaflets; A. punduana Wallich, which more resembles our species 
in its inflorescence and flowers, is easily distinguished by its very short-stalked 
cuneate and glabrous subcoriaceous and indistinctly serrulate leaflets. : 
Pictures of A. Wilsonii will be found under Nos. 96 and 343 of the collection of 
Wilson's photographs and also in his Vegetation of Western China, Nos. 114 and 115. 
Though I have not seen the specimens collected by A. von Rosthorn in Szech’uan 
and by Silvestri in Hupeh, I have no doubt that they belong to A. Wilsonii, 
While the specimen collected by Piasezki in Shensi is probably the true A. chinensis 
to which Maximowiez referred it. ; dee 
Asa complete description of A. chinensis has not been published, a description 
Species based on the material in the herbarium of the Arnold Arboretum 
Aesculus chinensis Bunge in Mém. Soc. Etr. Acad. Sci. St. Pétersbourg, II. 84 
(Enum. Pl, Chin. Bor. 10) (1833). — Walpers, Rep. I. 423. — Hance in Jour. Ba: 
: 312 (1870). — Hemsley in Jour. Linn. Soc. XXIII. 139 (1886). — Maximo- 
