SOME SOUTHWESTERN MULBERRIES. llS 



prominently mucronulate, the texture firm-membranaceous, 

 upper face deep-green and doubly muriculate-roughened, a 

 larger and very sparse set of murications conspicuously hair- 

 tipped, the many times more numerous intervening ones not 

 at all so, and naked ; lower face of a much more vivid green, 

 also merely hispidulous along all veins and veinlets, otherwise 

 glabrous : fruit not seen. 



Kerrville, in arid western Texas, July, 1889, Munson Hop- 

 kins ; the type specimens on sheet 218,836, U. S. Herb., 

 labelled by some one as a Celtis. 



MoRUS ARBUSCULA. Apparently an intricately branched 

 low shrub, the branches stout, rigid and divaricate, their bark 

 light-gray ; leafy and fructiferous twigs of the season green 

 or somewhat reddened, obscurely puberulent: leaves numer- 

 ous, approximate, slenderly short-petiolate, very small, ovate, 

 sometimes very broadly so, obtuse or subtruncate at base, at 

 apex abruptly rather long-acuminate, the blade as a whole an 

 inch long or less in the smaller to barely IJ^ inches in the 

 largest, the margin with few and coarse serratures ; leaf -texture 

 very firm, the color of a very vivid green, deeper and less vivid 

 above, brighter underneath, and there marked by whitish 

 veins, upper face muriculately roughened, lower smooth, 

 glabrous except as to a few small short hair-points on the 

 -larger veins : fruit small, nearly spherical on very short villous- 

 hirsute peduncles. 



A Texan species, collected on the Fredericksburg Road, 

 about ten miles north of San Antonio, 7 May, 1910, by Mr. 

 S. H. Hastings. 



MoRUS Vernonii. Shrub or small tree of slenderer habit, 

 the branches of two and three years' growth pinkish gray and 

 glabrous, those of a year old showing a trace of the short- 

 villous subtomentose pubescence that is plain on the growing 

 leafy twigs of the season : petioles slender, X to /^ inch long ; 

 leaves of several patterns lobed and uncut on the same branch, 

 all rather small, some with very distinct ovate-acuminate 



