the east and west, he has never seen a specimen like the figure 

 ot .Small s and seriously doubts if anybody else saw one; the 

 leaves are figured as having awns at least 3 lines long, which 

 IS not the case with the species. P. Douglasii Small splits up 

 into at least three fiat species. There is a complete transition 

 from Douglasii proper through Sawatchense, Engelmanni, 

 Austinae, to Douglasii var. montanum, which equals the va- 

 nety latifolium. The character of tenue having 3 parallel- 

 nerved leaves given by Greene holds g;ood ; all of Small's other 

 so-called characters fail, such as thickish leaves, erect flowers, 

 stipules. The ciliolate-scabrous leaves and stems are not 

 more so than many specimens of Douglasii, though usually 

 tenue is far more lacerate-fringed on the leaves. The mid- 

 nerve of tenue is mostly rounded and but little raised, while 

 in Douglasii and all its varieties it is also conspicuously 

 winged, though less so in the variety montanum. The leaves 

 of tenue are thinner than Douglasii or any of its forms. 

 E)ouglasii has pinnate-veined leaves, and flowers 1-2 lines 

 long, erect or reflexed ; the var. montanum (Small Polyg. 118 

 as species) has large flowers, oblong-ovate akenes which do 

 not differ. P. Sawatchense is a form of Douglasii with smaller 



Polygomun Douglasii var. Austinae (Greene Proc. Gal. 

 Acad. 2 212 as species) is a small form branched at base and 

 with proliferous and almost filiform stems with broad and 

 large basal leaves greatly reduced on the branches. P. Engel- 



sheaths elongate just as the stems do; if the stems are very 

 short with almost no internodes then the sheaths are very 

 short, and so that character is of no value. P. Kelloggii and 

 Watsoni are forms of the same species, the distinctions do not 

 hold in anv particular. 



Polvgonum phytolaccaeforme Meisner Small is described 

 by Small as "drying black, leaves obtuse or slightly cordate 

 at base, flowers in rather loose lax spikes which are about 1 

 inch long, akene oblong chestnut-brown." Now it does not 

 dry black except as any plant will if neglected in the press by 

 a lazy collector. The leaves are neither obtuse nor cordate at 

 base, the flowers are panicled as in P. alpinum, and the ulti- 

 mate racemes are 6 lines to 2 inches long, akene never oblong, 

 normally straw-colored. Small on page 34, figure 4, repre- 

 sents the leaves as acuminate at base and the akene as ovate, 



