OP ARTS AND SCIENCES. 75 



our most excellent correspondent and acute botanist, J, Reverchon, of 

 Dallas, Texas. 



Astragalus Rattani. E radice annua mox multicaulis, erec- 

 tus, pedalis, striguloso-puberulus ; foliolis 5-7-jugis obovato-oblongis 

 emarginatis; floribus (9-15) in pedunculo folium superante capitatis; 

 calycis dentibus tubo campanulato paullo brevioribus corolla violacea 

 (lin. 5 longa) dimidio brevioribus ; lei^uminibus etiam capitato-con- 

 gestis erectis fere filiformibus (bipollicaribus lineam diametro) tereti- 

 bus sutura dorsali intrusa bilocellatis. — Mendocino Co., California, on 

 prairies nortb of Mad River, and on Rattlesnake Creek, June, 1882, 

 V. Rattan. A remarkable species of the group formerly represented 

 only by A. Breweri and A. tener, well characterized by its long and 

 narrow straight legumes in a capitate cluster, from three to seven 

 maturing. 



Astragalus drepanolobus. Micranthi, subpedalis, ramosus, 

 striguloso-puberulus ; foliolis 4— 5-jugis obovatis sa;pius emarginatis ; 

 pedunculis cum racemo pauci-plurifloro laxo folium superantibus; flo- 

 ribus albo-violaceis ; calycis lobis subulatis tubo brevi-campanulato 

 jBquilongis ; corolla3 (lin. 4 loiigce vexillo emarginato ; legumine ob- 

 longo-lineari compresso obtuso falciformi estipitato fere glabro sutura 

 dorsali introflexa bilocellato. — Washington Territory, on John Day's 

 River at Scott's Bridge, /. & T.J. Howell, May, 1882. A species with 

 much the habit of -4. midtljiorus, but with a very different falcate and 

 completely bilocellate legume, of an inch in length, 2 lines in width *, 

 the transverse section Y-form. 



Astragalus speirocarpus, Gray, Proc. Am. Acad. vi. 225, has 

 now been received from Mr. Ilowell, collected on the Columbia River, 

 fine fruiting specimens exactly like the original of Lyall, also in flower. 

 It is different from the plant of Western Nevada and California, so 

 named in the Botany of California, &c., which, indeed, appears to be 

 only a variety of A. cyrtoides. 



Astragalus Parishil A. oocarpo similis, pariter flaviflorusj 

 caule laxo bipedali ; foliolis junioribus sericeo-pubescentibus ; racemo 

 minus laxo ; calycis dentibus subulatis tubo dimidio brevioribus. — 

 Common in San Bernardino Co., S. B. & W. F. Parish. Apparently 

 also collected in adjacent parts of Arizona by Palmer. Flowers earlier 

 than A. oocarpus, of San Diego Co., which is erect, stout, and fully 

 four feet high. The legumes seem to be similar. 



Astragalus bicristatus. Podosclerocarpi, subcinereo-puberu- 

 lus; caule sat valido ; foliolis 7-11-jugis sublinearibus (lin. 6-10 

 longis) ; pedunculis folium superantibus ; spica aut brevi densa aut 



