70 MINNESOTA BOTANICAL STUDIES. 



Polygonum microspermum (Englm). 



F. tsnue MiCHX. var. microspermum Englm. in Proc. Acad. Philad. 



15:75. 1863. 

 Polygonum engelmanni Greene, Bull. Calif. Acad. 1: 26. 1885. 



Not previously reported from Minnesota. 



Crevices of rocks near Montevideo, Chippewa county, Minn. 

 {L. R. Moijer, Oct., 1893). 



The plants collected differ from the published description 

 only in having a tubular portion to the sheath, which is some- 

 times lacerated above. This may probably be due to the late- 

 ness of its gathering as other portions of some of the plants 

 show the effects of weathering. The inaccessibility of the pub- 

 lication of this species has induced me to include Green's 

 original description herewith.* 



Monolepis chenopodioides (Nutt.) Moq. in DC. Prod. 



\'d,pt. ^:85. 1849. 



Not previously reported from Minnesota, although mentioned 

 by Mr. Warren Upham in his list of western plants extending 

 into the basin of the Red river. ^ 



It was found to be abundant in low, swampy ground near 

 Brown's Valley, Traverse county, Minn. {E.P. S., Sept., 1893). 



Amarantiis spinosus Linn. Spec. 991. 1753. 



Not previously reported from Minnesota. Collected in Good- 

 hue county, Minn. {Dr. J. H. Sandberg, July, 1886); Minnesota 

 Point on lake Superior {T. S. Bqperts, Sept., 1879); lake Chris- 

 tina, Douglas county, Minn. {E. P. S., Aug., 1892). 



Silene armeria Linn. Spec. 420. 1753. 



Not previously reported from Minnesota. Collected near 

 Grand Marais, Cook county, Minn. {H. W. Stack, July, 1892). 



Raniiuciilus macoiinii Britt. Trans. N. Y. Acad. Sci. 

 12:2. 1892. 



This species was first reported from Minnesota by L. S. 

 Cheney, under the name of Ranunculus hispidus HOOK.^ 



4. "Erect-spreading, diffusely branched from the base, a span or more high, reddish, 

 very minutely scabrous-puberulent throughout; branches slender and somewhat 

 flexuous; stipules sparingly lacerate, short, with no tubular or herbaceous portion; 

 leaves lanceolate, acute, with revolute margins, ^i inch or more long, the upper much 

 smaller and remote; flowers in all the axils, solitary in twos or threes, very small; 

 pedicels strongly deflexed; sepals obtuse, shorter than the very small, ovate, shining 

 akene, and but loosely investing it. — Rocky mountains of Colorado. Remarkable in 

 the minuteness of the flowers and fruit, erect-spreading habitat, and flowering from 

 the very base of the stems and branches." 



5. Upham, Geographic Limits of the Species of Plants in the Basin of the Red River 

 of the North, in Proc. Bost Soc. Nat. Hist. 25 : 149 and 156. 1890. 



6. Cheney, L. 8. loc, cit. 235. 1893. 



