KKS'ITCK.K. 4f'l) 



Culms ;J(>~K) <!m. lii;;li; leaves imicli like those of >', (ilhrsmis. 

 I'jinicle (leiirie. G-H ciii. loii;,', l.T) "' cm. ilium. Spikclcts tiiij^cd 

 with |)iir|ile. tumid, oval or oltlon<f, O-l'-J-llowcivd, 1-9 mm. Ion;;; 

 em|ity ;,dunu'.s liroaill}' oval, l-ucrved, obtuse, subacute or mueromitt'. 

 first *^.5 mm. loii^s second :> min. Ion;;; lloral ;;Iunu' sul't, sjion^a 

 on the lower half near the nerves, hirsute on the lower half of ilic 

 koel and the base of the lateral nerves, thi' ;;lunu' subcireular when 

 spread, mucronate, 4 mm. Ion;;; palea :{ mm. Ion;;, deltoid-ovate be- 

 fore spreading' the broad infoMed mar;;iiis, the base near the ki-i-ls 

 thick aiul spongy. 



Clearly distinct from S, ulbesvots, with which some have con- 

 foumled it. 



Texas, X)'(ilh';i in 1S!>:{. 



11. S. purpurea (Walt.) Kuntze. I?ev. (Jen. IM. TS!) (ISiH). 

 Aim /nd'jitnrii Walt. Fl. Car. 7S (liSS). I'mlipis imrjinnn and 

 /'. orislnhilo Nutt. (leu. 1 : <I".', (ii) (ISIS). TrirKsjtis jutr/iKtcti 

 A. Cray, Man. Kd. 1 : AS!) (IS4S). 



A tufted procund)enl or ascending annual, often purple; culms 

 solid, '.'0-40(^11. high, with nunu'rous bearded nodes. Leaf-blades 

 2-S cm. long, \,'>-"l mm. wide. I'aiMcles terminal or lateral, the 

 latter inchuleil by the shi-aths, very simple, ."{-0 cm. long, rays 

 spikelike. Kmpty glumes sid)e<pud, linear, ;5..')-4 mm. long; lloral 

 glume linear, 4..") mm. long, the awn 1-2 nim. loiig. 



New ^'ork (UulTalo), (f. IT. Clinton 4.']; New .lersey (Sandy 

 Hook); X'ii'ginia, l. S. lifpt. A;iririil. ;)'y.\\ l"'lorida. r///7/.v,v ;)4.")<); 

 Illinois. Pdfcrsiin; Mississippi (Ocean Springs). Tnii'ji. 



In the herbarium of Harvard University and thi' ])(>pt. Agricid. 

 at Washijigton are plants under the minu' 7'. sjKirsijhnui Cliapm. 

 Jiotli of these are all'ected with smut. After cari'ful examination, 

 I am (confident that they are defornu'd specimens of S. imr/mri'ii. 



Sandy soils. Massachusetts to Khtrida near the coast, also near 

 Lake Erie at HutTalo, and parts of Illinois. 



12. S. albescens (Munro) Kuntze 1. c. Triodia alln'sreuH IJenth. 

 Vasey, (\v. V. S. 35(lSSr)). 



A smooth erect tufted grass, 40-TO cm. high. HIades of sterile 

 shoots Hat or involute, taper-})ointed, IS-IJO cm. long, 2-4 mm. 



