236 JOURNAL OF THE ARNOLD ARBORETUM [vol. v 



diana y as herbarium specimens show, while the other which is still alive, 

 shows clearly the influence of J. regia. It is a large tree about 18 m. tall 

 with a round spreading head and a trunk 1.65 m. in girth and clothed with 

 shallowly fissured gray bark. Its leaves differ from those of J. Sieboldiana 

 in having only 7-9 leaflets which are comparatively broader, glabrous 

 above and less pubescent beneath and on the margin only remotely and 

 minutely denticulate with the minute mucro-like teeth about 5 mm. 

 distant from each other. From J. regia the leaves are easily distinguished 

 by the more numerous and larger leaflets remotely denticulate on the mar- 

 gin and pubescent on the midrib and on the veins beneath. The fruit is 

 subglobose, less densely pubescent and less viscid than that of J. Sieboldiana 

 and the nut is very much like that of J . Sieboldiana in its general appearance 

 and structure except that the suture is less prominent and the apex only 

 slightly and abruptly produced into a short mucro. The nut from the 

 tree on Mr. Hates' place differs somewhat in being larger with a more 



prominent suture and a more rugose and gibbous surface, but in the 

 foliage there is little or no difference. 



Juglans notha var. Batesii (./. regia X Sieboldiana var. cordiformis), 

 hybr. nov. 



A typo hybridae differt mice longiore magis ovoidea et acuminata, 

 leviter compressa et leviter rugulosa — Folium unicum 7-foliolatum foliolis 

 obtusioribus, ceterum ut in typo. 



Specimens examined: Hort. R. Bates, Jackson, South Carolina, W. 

 G. Bixby, October 19, 1919 (as "Cording Walnut"). 



The nut of this hybrid differs little from that of J. Sieboldiana var. 

 cordiformis except that it is longer and more ovoid and slightly rugose, but 

 the leaf shows clearly the influence of J. regia and does not differ from that 

 of typical J . notha. 



Philadelphus Delavayi var. calvescens, var. nov. 



Philadelphus nepalensis Diels in Notes Bot. Gard. Edinb. vn. 291, 292, nos. 



5032, 5036 (1912).— Non Koehne. 

 Philadelphus Delavayi Stapf in Bot. Mag. cxliv. t. 9022 (1924). — Non L. 

 Henry. 



A typo recedit foliis tantum subtus ad costam venasque et sparsissime 

 ad venulas adpresse setoso-pilosis vel interdum fere glabris supra sparse 

 adpresse setoso-pilosis, petiolis sparse adpresse pilosis vel glabris. 



Yunnan: "in collibus prope Lichiang versus occ," C. Schneider , no. 

 1896, July 18, 1914 ("fl. albi, frut. ad 4 m."; type); Mo tao tsin, Kou ty, 

 near Pe yen tsin, Simeon Ten, no. 469, April 15, 1917 (8-12 m.) and no. 

 543, 1918; eastern flank of the Tali range, alt. 3000-3300 m., moist open 

 situations amongst scrub, G. Forrest, no. 5036, July- August, 1906 (flowers 

 creamy white, fragrant; one of the three branches on the sheet in the 

 Arnold Arboretum herbarium is referable to P. Henryi Koehne). 



This variety which differs from the type chiefly in the glabrescent leaves 



