114 PROCEEDINGS OF THE AMERICAN ACADEMY. 



IV. 



CONTRIBUTIONS FROM THE GRAY HERBARIUM OF HARVARD 

 UNIVERSITY, NEW SERIES, NO. VIII. 



NEW PLANTS COLLECTED BY MESSRS. C. V. HART- 

 MAN AND C. E. LLOYD UPON AN ARCHiEOLOGICAL 

 EXPEDITION TO NORTHWESTERN MEXICO UNDER 

 THE DIRECTION OF DR. CARL LUMHOLTZ. 



By B. L. Robixson and M. L. Fernald. 



Presented May 9, 1894 



Crossosoma parviflora. a shrub, 4-8 feet high: branches 

 covered with gray bark ; brauchlets slender, elougated, and often 

 flexuous, sometimes straight and a little rigid ; cortex yellow : leaves 

 elliptic-oblong, obtuse and mucronulate at the apex, pale green upon 

 both surfaces, thickish, l-nerved, 4-6 lines long, 1|^-2| lines broad : 

 sepals 5, broadly oblong or suborbicular, 1|-2| lines long: petals 5, 

 oblong, 3 lines in length: stamens 15-20: carpels 3-4; follicles 

 glabrous, reticulated, only 3-3|^ lines long. — Collected in the Grand 

 Canon of the Colorado, by Dr. Gray, February to May, 1885, but 

 referred to Glossopetalon Nevadense, Gray ; and at La Tinaja, Sonora, 

 at 3,700 feet, by Mr. Hartman, 19 November, 1890 (no. 245). 



Eriodendron acuminatum, Wats. (Proc. Am. Acad. xxi. 418). 

 Specimens apparently of this species, but representing other stages 

 than those shown by the type, were collected in Western Chihuahua 

 but without more exact locality. The older branches are armed with 

 stout spreading spines 3-4 lines in length, while the younger ones, as 

 Dr. Watson states, are unarmed ; the young shoots and leaves are 

 densely tomentose : the calyx deeply campanulate, an inch long, slial- 

 lowly 5-toothed, glabrous and glaucous upon the outer surface, densely 

 sordid tomentose within ; teeth rounded, often split (perhaps in dry- 

 ing) : petals linear, 5 inches long, 4 lines broad, very appressed silky 

 upon one side of the outer surface, tomentose upon the s-'de covered 

 in the bud; glabrate upon the inner surface : stamens included. — The 

 Mexican name is " Pochate." The fleshy white roots are eaten, the 



