i^^-^l Brandegee: Planiae Mexicanac Purpusiaiiae, VI 53 



Desmodium (Xeijliroiucria) campestre sj). nov. 



Hii'sutuliun, (livcrsifoliinu : caulibus rainosis. ca. ;5 din. altis: foliis 

 simplicibus vel 2-."}-f()li()latis ; t'oliolis ovato-acuiiiinatis. nsijiie ad (i cm. 

 longis. ;? cm. latis, hreviter petiolulatis; petiolis 1-4 cm. long'is : Horilnis 

 parvis. racemoso-panieidatis; panicnlis terminalibus; pediccllis ca. 

 1 cm. lon^is. sacpis-simc tcrnis; calycis lobis lanccolatis: lct;umiiiis lobo 

 terminali ('lliptico. i,''labi'(). minute ciliato. 



Some of tlic specimens ba\'e only simple leaves, ot" some all the 



leaves are trifoliolate and some bear leaves of all forms, simple, bi- 



foliolate, and trifoliolate. ("dllected ricacho — San Geronimo, Oaxaca. 



growing on dry plains. No. (nSlO. Type, Herb. I'niv. Calif.. No. 



172517. 



Desmodium Purpusii nom. nov. I), hdidhnii Brandg. Zoe, V. 246 

 (1908) non I). luiHifuni Iluber. Uol. Mus. l>ara. IV. 568 (1906). 

 Mcibomia liinafa Eose & Standley. Cont. U. S. Herb. XVI. 215 (1913). \ 



Desmodium (Clialarium) chiapense sj). nov. 



Siiflfruticosnm. racemosum. pubescens : caulibus crassis, 5-6 dm. 

 altis: foliis trifoliolatis; foliolis (41ipticis apice mucronatis, breviter 

 petiolatis, supra pubescentibus. subtus dense allio-pubescentibus. ca. 

 5 cm. longis, 2.5 em. latis, terminali majori : tioribus i)urpui'eis. parvis, 

 numerosissimis. racemoso-paniculatis, breviter pedicellatis; panicnlis 

 terminalibus, valde ramosis; bracteis lineari-laneeolatis. mox deeiduis : 

 legnminibus hirsutis. sae]iissime 4-articulatis ; articulis suborbicular- 

 ibus. 



In a]>pearance tliis s])ecies resembles D. plectocdrpuin Ilemsley. 

 Collected on rocky slopes of Sierra de Tonala. No. 6809. Type. Herb. 

 Univ. Calif., No. 172516. 



Aca.lypha Purpusii sp. nov. 



Multicaulis e radice lignosa : caulibus frutescentibus ca. 2 dm. altis, 

 primum i)ul)escentibns : foliis ovato-acuminatis. basi cuneatis vel 

 truncatis, 5-nerviis, margine crenato-serratis, ca. 2 cm. longis. 15 mm. 

 lalis. ntriiupie parce pubesc(Mitibus ; petiolis ustpie ad 15nnn. longis. 

 |)ubescentil)us; stipulis lineari-laneeolatis, apice s(>tosis, deeiduis: spicis 

 femineis {)lerumque terminalibus interdum axillaribus, .saepe in [»edun- 

 culos steriles apice abeuntibns, ovatis. ca. 15mm. longis; bracteis ca. 

 3 mm. longis, ])idieseen1il)us, 3-5 dentatis, dentibus subulatis e basi 

 lata; stylis exsertis, lacinuligeris ; ovario bir-suto; seminibus sn.l) lente 

 rugosis : spicis mascnlis tenuibus, axillaribus, usque ad 4 cm. longis. 



Collected I'icacho — San Ceronimo. Oaxaca, growing on di'y i>iains. 

 .\o. 6894. Type, Herb. Cniv. Calif.. No. 172976. 



