SOME SOUTHWESTERN MULBERRIES. 119 



Metcalfe, who reports that the tree grows iu dry sand, at an 

 altitude of about 5,000 feet in the mountains. It bears more 

 likeness to Morus alba than do other southwestern species. 



MoRUS CRATAEGiFOLiA. Probably a small tree, the stout 

 branches of two or three years light-gre5^ glabrous, but leafy 

 twigs of the season, as well as the short stout petioles attached 

 to them hirsute-tomentose : leaves small, of some diversity of 

 form on the fruiting branches but in general broadly subcor- 

 date-ovate, coarsely serrate, abruptly acuminate, those inclin- 

 ing to be 3-lobed only incisely, not sinnately so, dimensions 

 only 1 to 1 /4 inches by J^ to 1 inch ; texture hard and sub- 

 coriaceous, color deep rather dull green as to both faces, the 

 upper very harsh with coarse dense murications, lower strongly 

 stiff-hirsute or almost hispid along the veins, the area rather 

 sparsely, finely and very sharply muricate. 



Collected at the mouth of the Blue River, a tributary of the 

 Gila, in southeastern Arizona, 14 June, 1905, by Walter 

 Hough. In what is their most usual cut, the foliage much 

 resembles that of some of the more incised crataegi. 



Morus radulina. Branches more slender than in the last, 

 neither quite straight nor yet obviously flexuous, only puber- 

 ulent, not tomentulose even when growing : leaves smaller, 

 broadly cordate, some without lobes, a greater number 3-lobed 

 as in the last, more notably acuminate, the margins crenate- 

 toothed : texture almost subcoriaceous, the upper face dull- 

 green, minutely and closely muricate-scabrous, the points 

 scarcely visibly hair-tipped, lower face of a lighter and more 

 vivid green, hispid along the veins and veiulets, the general 

 area between them only sparsely scaberulous : fruit unknown. 



Specimens collected somewhere in Arizona, Aug., 1896, by 

 B. E. Fernow ; in what part of the State is not really indicated 

 by the merely local name Beaver Creek. 



Morus confinis. Fruiting twigs of the season densely 

 leafy, reddish, villous-tomentulose, branches yellowish-brown, 

 glabrous, foliage of fruiting branches very copious, the smallest 



