Indo-China (FI. Gén. Indo-Chine 3: 642. 1924), becomes Youngia japonica 

 (Thunb.) DC; Babc. & Stebb. op. cit. 94. /. 28. 1937. 



Arnold Arboeetitm, 

 Harvard University. 



196 JOURNAL OF THE ARNOLD ARBORETUM [vol.xxiii 



Pitard's ample and detailed description applies rather well to the cited 

 spécimen except in the characters indicated. The type is Balansa 2635 

 from Cho-bo, Tonkin. The corolla lobes are described as 0.3^0.4 mm. and 

 the tube as 1.5-2 mm. long, the form I hâve indicated as var. longiflora 

 having flowers twice as long. Pitard's figure, 9, 7-9, includes an illustra- 

 tion of a mature tlower, and he describes and illustrâtes the corolla as 

 pubescent outside, although in Drake's original description it is indicated 



