NORTH AMKRICAN SPECIES OF LEl'TOCHI.OA. 11 



NORTH AMERICAN SPECIES. 



A.— LkpTOCHLOA proper. SjiikcUts : to !, Jioinnil, iirnuiijnl i los< tmjvthvr on one sidr «>/ ttie 



hranrhes <»/ thi' piinicli'. 



LEPTOCHLOA MUCRONATA Kuntli. Rev. Griiui. 1: '.U. is:r>. Transfers 



Eleiisrne mitcroiiata Mic-hx. (PI. I. fiK- 1: text fig. 2.) 

 Eli'iiKiiiemiicroiiatd Mivhx. Fl. 1: G.'). ISO;}. •' Hah. in tnltis Illinoensibns.- 

 Festiini tinformisUxm. 111. 1 : l!tl. n. 1044. ITiM. •• Ex Amer. Meritl. Comm. D. 



Ruhard. ■ 

 Elensi ne Jil i form is Fers. Syn. 1: MT. IHOr,. • Hab. in Americ. merulion." 

 Eleusiiie sparsa Mnhl. Descr. Gram. 13."). 1817. '• Habitat in Carolina ct (Teorgia."' 

 Ox!/(h „ id (ittrini((t(i 'iintt. Gen. 1: TO. 1H1><. •• ( )n the banks of the Mis.si.ssii.i)i 

 near New ( )rleans."" Mr. Nuttall says: " To this genus belongs the Elnisine 

 filifortiiix of Persoon. growing in the tropical regions of America, nearly 

 allied to the present species." ami is often (luoted as the author of o.ri/drnia 

 filiforuiis. Vmt he does not make this combination. 

 LejJtochlixi Jilifonii is Beanv. Agros. 71 and 166.1812. Transfers Eleusiiw fili- 

 formis Pers. Roemer and Schtiltes (2: .ISO. 1817). also transfer Elriisinrjili- 

 formis Pers. Presl.Rel. Haenk. 1: 2SS, 18:50. gives as the locality --Hab. in 

 Mexico, ad Sorzogon Lnzoniac" In the herbarium of the U. S. Department 

 of Agriculture are several specimens from India. I am unable to disting\iish 

 these from the American plant. Hooker includes the.se under L. Jiliformis 

 R. & S. (Flora Br. India. 22: t-Mts. 1S%.) I have examined the Asiatic 

 material in European herbaria and feel satisfied that L. miicroitata occ-urs in 

 southern Asia. It can be distinguished from the allied L. chinensis by the 

 papillose sheaths. 



Flu.L— /-. o tin, 11,1 til. Fig. 2.— L.mnrronat,!. 



Eleusine elongata Willd. ex. Steud. Nom. ed. 2, 1: 549. 1840. Labelled '• Habitat 

 in America meridionalis Humboldt. "" Types of this and the next examined 

 in herbarium Willdenow. 

 EleuHine stricta Willd. 1. c. Labelled " Habitat in San Domingo." 

 Lepiochloct (itfrniiafd Steud. Syn. 20'.i. 18.-).*). Transfers O.rydenia attcnuata 

 Nutt. This is kept separate by Mr. Nash in Britton's manual, but the char- 

 acters do not seem to me to be sufiBciently constant for separation. This foi-m 

 is represented by Bush. Nos. rm. 40:',. 792. 798. and Eggert, 219a. from Mis- 

 souri, and Palmer, 892. 401, from Indian Territory. 

 Leptochloa pdlncidnla Steud. 1. c. " Duchaissing legit in Panama." 

 LeptocMoa pilosa Scribn. U. S. D. A., Div. Agros. Cir. 32: 9. 1901. -'Tyve 

 specimen collected in sandy soil, Dappan. Travis County. Tex., 294, J. E. 

 Bodin, September, 1891. " Prof essor Scribner states that •■ This species is closely 

 related to Leptochloa mncronata. but it is at once distinguished by its rigid 

 leaves and papillate-pilose sheaths." The leaves are somewhat more rigid 

 than is usual in this species, but the papillate-pillose sheaths are found com- 

 monly in L. mucronata. 

 Stems tufted 6 to 10 dm. high, erect or occasionally more or less decumbent at 

 base and rooting at the nodes. Leaves numerous, flat and rather soft, vary- 

 ing from 1 to 3 or more dm. in length and as much as \ cm. wide. Sheaths 

 more or less pilose from a papillate base. Panicle often 3 dm. or more in 

 length, consisting of numerous slender spikes, arranged along a central axis; 



