CONTRIBUTIONS TO WESTERN BOTANY NO. li 127 



town. No. 24189 and 24130, Febraary^. 



Argythamnia bicolor N. Sp. Slender shrub, 2-3 feet hv^M. tr^ct. 

 c+o„,„ r,-nA „T^r.«f ;,iflm-ps/-<.nr*. linnrv witTi vervsHort wbite and spreading 



;ed.' The niar- 



intermi 



gins of all the leaves glandular ciliate, as are the sepals. Leaves oblong 



cm. lone and rarely 1 cm 



petiole 1 cm. long, sparsely and softly pub 



some of whidi 



n Altemanthera. Uppe 

 gly yellowish-white, but without extra pubft^o 

 he epidermis, from which ^ character aises tl 

 upper axils, about 1 cm ' ' ' '^ 



brown: •^. 



male flowers above, and the single fertile one below. Bracts of the mi .... 



conspicuou 



ately toothed because of the green and stout bases of tiie giannunr i^ r, 

 which characteristic is also with the sepals. Sepals linear ami ^y^ _, 

 long, nearly a half shorter than l3ie oblanceolate and f <J-^tnped pe^- 

 Pod; depressed-spherical, about 4 mm. long, blue-black, appre-.^d-han> 

 slighfly. Seeds tan-colored, irregularly and raAer deeply pitted tmncae 

 ovate, and nearly 3 mm. long by 2 mm. wide, acute ^t^thc c.o,ed tK^ 

 No. 22727, Heriiosillo. Sonora, October 26, \926,gro^.ng among *e 

 rocks on the mountain back of the city. Whefter .t^l^J^ ,\;f ;^: ^, 

 Watson I do not know, since I cannot find the ^^^"P/^^^^f^f^l;^;^,;; 

 But this is a remarkably distince species, and alhed to tlie narr«. 



species group. cu„,v- ? < feet H^b, erect, slcn- 



Desmodium luteo-canescens N. Sp. Shrub. 3-5 feet m , 



nearly smooth, terminating 



.. „. proper racemes, which are ^ff'^^f^J^^'i: ';:;:,..{ on. 

 of the rather appressed flowers and fmit. J-^a^^^ •"', ^ 5 ^^jje, 



about twice a^ long as the lateral and ^ .^ ^ndVuL k^^^ there 

 elliptical-ovate, flat, rather thick, venose below and a litUeig ^_^ 



densely short-^ello^-hairy all over, w.th ^^^^^"/^^^f^iongt^e stamen 

 mm. iW Banner sky-blue becommgno^^>er 4 mm^^^^^ ^ 



tube white. CaVx__short-pubescent^^^^^ ^^'s f-it densely hoa.r,. 



somewhat, about 1 mm 



a 



long 



becoming rather short-shaggy, spre^^'^S- J "^ ^ contiguous, 4-5 mm. 

 ather flexuous but not hooked ^^^lons mo^y 3 conh^ ,^.^^^^^^ 



obliquely oval, rather strongly "^^t^^^^'^^i ..p^ary, and asccnd- 

 margins. Pedicels in fruit about 5 nun^long ^-^ capjllar^^ ^^ ^^^^ 

 ing. No. 23054, got ^^ Acaponeta at fte J:-! g ^^^^ ^^ ^^ 



March 1, 1927. This belong to a group wm» apparently. 



obtuse leaflets, not apiculate. but F^^^^^^^P^^^^ ^t^roduc^"^ Leaf- 

 Stipe 2-4 mm. long. Terminal jomt apiculate ana n 1^ 



rachis twice as long as petiole proper. ^^^ Pubescence sparse 



Desmodium luteo-canescens var curwm • -^ ^^ ^^^ ^^p^^ 



m the upper part' of the leaves ^^Jf^^' ^^ ,tipe between which is 

 v?«o?ely reticulated. Joints of fruit w^ln ^i r- 



