178 LEAFLETS. 



paper as a whole will only demonstrate the truth, not very 

 creditable to our botanical forefathers of several generations 

 past, that they never looked at these plants with the eyes of 

 botanists. 



The cannabiniim group finds a fuller development on the 

 Atlantic slope of the continent, the androsae^nifolium alliance 

 on the Pacific ; at least from the Rocky Mountains westward, 

 and in the far away northwest, on the vast volcanic or half-arid 

 plains and mountain districts, this section blossoms out in a 

 multiplicity of dwarf species which in flower are often very 

 specious and beautiful. 



Apocynum insigne. Plant a yard high or more and robust, 

 the stem glabrous and green without bloom ; cauline leaves 

 elliptic-lanceolate, 5 inches long, 1 ^ inches wide in the middle, 

 acute at both ends, short-petioled, widely spreading but not 

 deflexed, green above and with a scantily pubescent midvein, 

 underneath whitish, this partly by reason of a dense bloom, 

 and partly as being thinly hirtellous with white hairs : cymes 

 as in other members of its group terminal and axillary, but 

 strongly developed and very many-flowered ; flowers appar- 

 ently colored as in ^, androsaemifolitim, but not more than 

 half as large ; sepals short, deltoid-ovate ; corolla campanu- 

 late. deeply lobed. 



Mountains of Virginia, the specimens collected by Gerrit S. 

 Miller on Stony Man Mountain, near a large spring, 3 July, 

 1903. The species is allied to A. medium of the Potomac 

 Valley, District of Columbia, but is twice or thrice as large, 

 with extremely different foliage and large clusters of small 

 flowers. The follicles in this very large species are the small- 

 est known in the genus. 



Apocynum leuconeuron. 



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of firm texture, dark green and glabrous above, paler beneath 



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evidently larger, probably a yard high, the foliage more \ 



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