ACCESSIONS TO APOCYNUM. l75 



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lance-oval, the largest seen 3 inches long, 1 j4 in width, rounded 

 and subsessile at base, the apex very acute ; rameal leaves 

 one-third smaller, elliptic-oval: cymes terminal, sessile, but 

 quite many-flowered and rather loose; flowers small, lurid flesh- 

 color and not erect, neither exactly nodding, but extended 

 almost horizontally ; sepals lanceolate, long for the short cam- 

 panulate corolla. 



Two specimens in U. S. Herb, are before me, both from 

 northwestern Montana, the localities some 130 miles apart. 

 One is from near Meeksville, in the Clark's Fork Valley, by 

 J. B. Leiberg, 22 Aug., 1895. This, a large specimen, but of 

 the top only of a plant, indicates a size comparable to that of 

 the great A. cannabinunt of the Potomac Valley. It does not 

 show any other than the rameal foliage, and is almost past 

 flowering. The other specimen is from Midvale, by L. M. 

 Umbach, 14 July, 1903. This is in flower, and shows the 

 uppermost cauline leaves. I name the species solely in allus- 

 ion to the valley habitat, not as indicating any likeness to 

 Convallaria. If the flowers of this, in form, attitude and color 

 are not those of -^. cannabinum, still as to all the vegetative 

 characters, and general appearance, it is of that group. 



Apocynum BOI.ANDRI. Plant low, barely a foot high, 

 ! branched divergently from near the base, the spread of the 



I branches equalling the height of the plant; all the leaves 



oblong-lanceolate, very short-petioled, acute at apex, from 3 

 inches long in the properly cauline to less than 2 inches in 

 those of the branches, colored much the same on both faces, 

 but more glaucous beneath : flowers in a single cyme at summit 

 of the main stem, small ; sepals lanceolate and long ; corolla 

 short-cylindric, its color uncertain. 



Plant known only as collected by Bolander, fifty years since, 

 and reported by him as growing ** among rocks in the Merced 

 River, at Clarks, alt. 4000 ft.'' It is plainly of the group of 

 A. cannabinunt, and with some special resemblance to my A. 

 albicm of the shores of the Potomac, and A. littorale of New 

 York and New England. These two eastern kinds are white- 



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