MICHIGAN ACADEMY OF ^ClKNCt^L .^40 



instead of Biitfon. ^S. rU,i(!a Pursh becomes .s'. hetcnyplnilla Pursh with vars. 

 eUiptica Enselni : nf/Mo. (Pursh) Engelni : i.nd omnixtifnlia Enselm. 



]']<■}, mo(1ori(.H tniellus (Mart.) Buch. This is i... longer consi.lere.l lo h.- a 

 siwcies of Alisma. 



A. I'kinfa(jo-(iqi(utwa L. is not found in America ; there is a variety 

 Americana R. & S. and a variety parvi flora (Pursh) Farwell. Both are found 

 in Micliigan. 



HYDROCHARIl )ACEAE. 



Valisneriaceae ))ecomes Hydrocharidaceae. 



Phllotria Itaf. i)econies Elodea Mx. 



/'. ('(inaiUnxix (Mx.) P.ritton ))ecomes E. (UnuuUmiH Mx. 



GRAMINACRAE. 



Gramineae become.s Graminaceae. 



Zea Mays L. Corn, Maize. Adventitious. 



Andropogm scoparius Mx. var. frequens Hnhb. replaces Andropogon 

 scnparius Mx. 



Borghafstrum nutans (L.) Nash should rei^lace .S'. avenaceum (Mx.) Nash. 



Syntherisma Walt, becomes Digitaria Heist. 



»S'. linearis (Krock) Nash, becomes I). Un^^aris (1.) Pers. 



»9. snngmnalis (L.) Dulac. becomes D. ndngninaHs (L.) Scop. 



/). fiUformis (L. ) Koeler is credited to Mich, in (Jray's Manual. 



Erhinnchloa Cruxgalli (L.) Beauv. (ireenish or yellowish with awns up 

 to about 2 cm. in length. Keweenaw <'o., No. <i4S, Aug. S, ISSS; Detroit, No. 

 r,4.»^b, .luly 21, 1S!>2. 



10. ('KisdAi.i.i forma Mrns (I'ursli) ii. comb. i. I'miicina CriisgdUl var. 

 mite Pursh. Fl. Am. Sept. 1, (id, ISH). Most of the tlowers are muticons, not 

 awned. Detroit, Aug. 18, 1SJ):J, No. (;4Sa : Orion, Aug. 2!>, lSl)r», No. (USc ; Mar- 

 quette, Aug. 1002, No. 048d. 



E. Ckusgalli forma rrRPiiBEA (Pursh) n. comb. (I*tniici(tn Cruxgalli 

 var. piirpurenm Pur.sh. Fl. Amer. Sept. 1, (JtJ, l!n4.) Panicles i>urplish, tl<»wers 

 muticus to aciuninale, the a<-ununation aboiit as long as the floret. Detroit, 

 Oct. 2, inO<), No. 1701. 



E. CrmgaUi (L.) Beauv. forma sakulonum n. f. (Panicuni Crusgalli var. 

 snhulomnn Trin. Gram. 2, pi. 1(5.3, 1820). Panicle pyramidal, lower branches 

 elongated (10 cm. long), with ..secondary branchlets 2-3 cm. in length, awns 

 3 cm. long, purplish and hispid. Detroit, Oct. 2, 1000. No. I7OI14. 



E. Crusgalli (L.) Beauv. forma longiscta n. f. (Panicum Crusgalli var. 

 Inngisetum Trin. Gram. 2, pi. 102, 1820?). Similar to the species hut awns 



