184 LEAFLETS. 



slightly widening upwards, the segments of more than half 



length 



The habitat of this exceedingly beautiful dwarf dogbane is 



Warner 



California, which forms a part of the great volcanic and half 

 desert region that is extensive in adjacent Oregon and Nevada. 

 The very fine specimens before me belong to my own herb- 



M 



1882. The panicled inflorescence, of numerous and large 

 flowers, is not peculiar to this one species. It marks my A. 

 tomentellum of western Nevada, and several more. 



Apocynum eximium. Plant dwarf and large-flowered, but 

 somewhat larger than the last, the stems 8 to 12 inches high, 

 solitary, leafless and naked below to the height of 3 or 4 

 inches, thence simple or with only 2 or 3 branches, glabrous 

 throughout ; lower leaves round-oval, Ya inch long, the 

 others mostly ovate to round-ovate, \% to 1^ inches long 

 and near the base almost as broad, all very obtuse, or the very 

 uppermost retuse, yet none lacking a short abrupt mucro ; 

 texture firm, the upper face dark-green, the lower glaucous : 

 flowers few, very large, in terminal and subterminal cymes ; 

 sepals short, deltoid-ovate ; corolla quite V^ inch long, flesh 

 colored, the long tube slightly widening, the lance-oblong 

 obtuse lobes nearly as long as the tube, and merely ascending. 



Collected by W. N. Suksdorf. in Falcon Valley, Washing- 

 ton, in 1886, distributed by him for the Grayian var. pumil- 

 um^ of which wondrous aggregate it may or may not have 

 formed a part. 



Apocynum polycardium. I^ow, widely branched from the 

 base or near it, 9 or 10 inches high, the breadth of the plant as 

 a whole a foot or more ; stem and branches tomentulose- 

 puberulent, densely clothed with a spreading and exactly 



heart-shaped small foliage; leaves \to \% inches long, very 

 obtuse, or even retuse, at apex and mucronulate, dark-green 

 and puberulent above, glaucous and sparsely pubescent be- 



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