147 



Habitat : From Austin to El Paso. Texas. 



Specimens examined: Texas ( Wright, 1849). 



Tlie iii)ii('r MtatiH'Us are scarcely dilated ati<l with very lar^c stjpitate glands. 



8. H. Texensis. WutiVutesceiit, scarcely <;!andular, 20 <-tti. lii>!,lj, cvcrywlierc the 

 grayish harlv covered with a fine pnbescencc: stems iiitricatily hi;inchr(l into iiiiiny 

 very slender branchlets: leaves many: very small (10 to 18 mm. long) ; iiiiina- 'A, do- 

 cidnons; Icatlcts nnnatc, 3 to .5 pairs; Bti]Hiles niiimtej glaiiduliir: itedunclcs 2 to 4 

 cm. long, slender, with 2 lo o minute /lowers: vexilliini with a dense tult i-ach side 

 of base: stamens ^landless, the pubesiu^uM; rather short, thick, pointeil, dense be- 

 low on upiier stamens: style vf^ry slender: ]>od 15 cm. long. 



llabital : Texas, <m the Nueces. 



Specimens examined: Texas ( Berlan diet- {)12, type). 



Type in Jlerb. tiray. 



This spcu'ies is most nearly related to H. Untmmoiidii in respect to the shape of leaf- 

 lets, pod, petals, and style; otherwise its gr;iy, iiuhesC(Mit, ilcxnons branches and 

 branchlets (scarcely larger below thini alxtve), itsmany ptdioles without pinnsB and 

 short branchlets, its very small leaves, Icallets juiii llowers, its vcxilhim miieb tnftt^d 

 at base, and its stamens not gliindiihir but much ])ubescent, with the upper prom- 

 inently setose appcndaged, makes this a very distinct species. 



-^-i--.- VexiUiim with hroail and thivl: chiir, ;il<ni<IU-^.H as well an fiJanuntH: style very long 

 and c)fli»dricul: pod Innate, nith ih'ui, laticealate, dedditoim HepuU: stems J'rutee- 

 cent, (greenish, v'wijate: haven snmll; >ilipnh'» and hractn lanceolate, eaducouH. 



9. H. microphylla Torr. Mex. Bound. 58 (18.^>9). Plant 2 to 12 cm. high, velvety 

 puberulent: pinna-, 3, tlie odd one tw ice as long and with 7 to 11 pairs of leart(;ts, the 

 lateral with 5 or H pairs; leallcts 'A nun. long, ]iubescent: raccuu's many, much elon- 

 gated, loose, w^ith many llowers (buds blunt): sepals pubescent, riie lower much 

 broader, concave: style pubescent, inclin<Ml above; pod lunate, botli ends acute, 

 upper suture nearly straight, 20 by 7 nun., pu1)escent, 2 to (>-seeded. 



Habitat: From soutlu^ru California through western Sonora and Lower ('aliibrnia. 



Specimens examined: Califbiuia (rarixh Iiron. 591; ^S". B. Parish, 1880; iasei/, 



1880; Palmer, 1870); Sonora {Pringle, 1884; PaJmer); Lower California (i'«i)Hcr 543 



iTi part). 



Pawner's pubescent speciuuMis of 513, from Sonora, are snudler in every resi>ect, 

 with fewer tlowers, the leaflets often glandular on nnirgin, and the stamens with 

 longer pubescence. It is closely related to tlu^ next, 



10. H. glabra, (ilaluous throughout (exeei>t margin otsti])ules and calyx), 45 cm. 

 (or nu)rc) high, rigid branched (usually from one side): lateral pinme 1 cm, long, 

 witli 5 pairs of leatlets, the terminal sligbily longer ami with (> pairs: ra<':»^mes 

 slender, 12 to 17 cm. long, bearing 15 to 25 small small Howers (buds acute): iila- 

 ments (ni>iKn) with ai)i>eiulage narrow, d(uisely setose on top, projecting at right 

 angles, the ])ub<ssceuee long and slender: style scarcely enlarged or inclined above: 

 poil lunate, 15 by (5 nnn., with u])per suture eurveil, acute, base attenuate. 



//. mlrropliiilla var. ghihra Watson, Proc. Am. Acad. xxiv. 47. 



Habitat: On Los Angeles Hay, Lower California 



Specimens examined: Lower California {Palmei- .543, in part type). 



Type in Herb. Gray, J. Dounell-Smith and Canby. 



Var. iNTKic.vTA. Lower (about 45 cm. high), scarcely erect, witli branches and 

 branchlets mon^ spreading, shorter and very rigid: pinnae scarcely as long and with 

 4 or 5 pairs of leatlets: pcdun(des many, very short, with few flowers (6 to 8): pod 

 larger (20 l»y 7 mm.). 



7/. intrirata Brandegee, Proc. Cal. Acad. Sci. 2. ii. 



Habitat: At Kl Campo Alemau, Lower California. 



Specimens examined: I>ow((r Calil'orni.i { Praudiijer, 1889, typo). 



Type in Herb. Gray and National Herbarium. 



