40 JOURNAL OF THE ARNOLD ARBORETUM [vol. v 



Ilaec species ab E. macrophylla floribus corymbosim dispositis dignos- 

 cenda. 



Ehretia Dicksoni has been often mistaken for E. macrophylla from which 

 it differs in its racemosely arranged flowers on the branchlets of the in- 

 florescence. Mr. E. II. Wilson tells me he is now of the opinion that 



* 



Ehretia Dicksoni is distinct from the Himalayan E. macrophylla. He saw 

 many plants of E. Dicksoni in Paris where it is quite hardy and flowers 

 and fruits freely and is considered a good tree to plant in streets where 

 small trees are desired. Ehretia Dicksoni is a variable plant and its varieties 

 may be distinguished as follows. 



Folia subtus tota pctiolisque velutina, late elliptica vel ovata vel ovato-rotundata. 

 Inflorescentia velutina. Corolla extus griseo-ciliata . . .E. Dicksoni var. tomentosa. 

 Folia subtus saltern ad costae basin et petiolum pilosa vel glabra. 

 Folia subtus distincte velutina. 



Folia subtus praeter basin costae velutina E. Dicksoni var. liukiuensis. 



Folia subtus ad cost am et venas primarias glabra. . .E. Dicksoni var. japonica. 

 Folia subtus adpresse pubescens vel subglabra. 



Folia subtus adpresse pubescentia E. Dicksoni var. typica. 



Folia subtus subglabra E. Dicksoni var. glabrescens. 



Ehretia Dicksoni var. typica Nakai. 



Folia late ovata vel obovata vel oblongo-obovata vel oblonga, apice 

 acuta vel obtusa, basi acuta vel rotundata vel subcordata, supra scabra, 

 infra molliter sparsim pubescentia. Inflorescentia sparsim pilosella. 

 Corollae lobi extus glabri vel piloselli. 



China. Kiangsu: Nanking, F. N. Meyer, no. 141o. Honan: 

 Yii Tai shan, J. Hers, no. 275; Cheng Chow, J. Hers, no. 69. Kiangsi: 

 prope Kuling, E. H. Wilson, no. 1571. Hupeh: Outanscian, C. Silvestri, 

 no. 1925; Ichang, E. II Wilson, nos. 8554A et 84; San-scien, C. Silvestri, no. 

 1923. Szechuan: sine loco speciali, C. Bock & A. v. Rosthorn, no. 

 2364. 



Formosa: Takow, A. Henry, no. 313; South Cape, A. Henry, no. 323; 

 Bankingsing, A. Henry, sine numero; Tentana, E. IL Wilson, no. 10306. 



Ehretia Dicksoni var. glabrescens Nakai, var. nov. 



Ehretia macrophylla Wilson in Sargent, PI. Wilson in. 364 (1916), pro parte; 

 non Wallich. 



Folia subtus praeter venas primarias sparsissime pilosellas glabra. 

 Rami inflorescentiae glabri; corolla extus glabra. 



China. Hupeh: Ichang, E. H. Wilson, nos. 3554, 3554B. Yunnan: 

 Mengtze, A. Henry, no. 10515. 



Ehretia Dicksoni var. liukiuensis Nakai, var. nov. 



Folia rotundato-obovata vel subrotundata supra scabra, subtus velu- 

 tina, costa basin versus glabra excepta. Inflorescentia pubescens; corolla 

 extus adpresse pilosa. 



Liukiu: sine loco speciali (a Yokohama Nursery Co. commun.). 



Ehretia Dicksoni var. japonica Nakai, var. nov. 



Ehretia macrophylla Matsumura Ind. PI. Jap. n. pt. n. 524 (1912), pro parte, 

 planta Formosana exel .— Nakai, Trees, Shrubs Jap. i. 329, f. 180 (1922). 



