156 PROCEEDINGS OF THE AMERICAN ACADEMY 



22. Dalea chrysorhiza (sp. nov.) : pilosula ; cauHbus perpluri- 

 mis e radice annua? filiformibus procumbenti-diffusis ; foliolis 7 -10- 

 jugis parvis (sesquilineam longis) obovato-linearibus emai'ginatis subtus 

 nigro-glandulosis ; stipulis minimis ; pedunculis folia superantibus apice 

 capitato-plurifloris ; calycis pubescens deutibus oblongo-linearibus obtu- 

 sis tubo fere jequilongis. — Radix perpendicularis, ut videtur annua, 

 cortice aurantiaco. Caules pedales et ultra, tenues, parce pilosuli. 

 SpiciB breves circiter 12-flora5 ; rhachi inter flores glandiilis ? singulari- 

 bus fusiformibus acutis obsita. Calyx inter costas glandulosus, lobis 

 cum bractea ovata calyce breviori foliaceis glandula acuta apiculatis. 

 Corolla brevis, violacea. Legumen pilosulum. — A well-marked species 

 of this lax'ge, prevailingly North Mexican genus. 



23. Phaseolus filiformis, Benth. Bot. Voy. Sulph. p. 13. But 

 the whole plant is puberulent. The root is certainly annual. 



24. Phaseolus (INIacroptilium) atropurpureus, DC. Fh Mex. 

 Ic. ined., & Prodr. 2, p. 395 ; Torr. in Mex. Bound. Surv. 2, p. 50 ; 

 var. SERiCEDS. I do not possess any specimen of Dr. Torrey's P. 

 at7'opurpureus, which, described as a new species, may well be iden- 

 tical with its homonymc of De Candolle. Our South California speci- 

 mens are identical with those of Mr. Schott, from the Rio Grande, 

 dubiously appended to this species by Dr. Torrey, only they are for the 

 most part still more silky-downy. The plant is of the section Ma- 

 croptiliwn, but has a short calyx. The wings are deeply colored. 

 The root is perennial. 



25. CouRSETiA ? GLANDULOSA (pp. nov.) : foliis ramisquc glabratis, 

 petiolo in setam desinente, foliolis eUipticis mucronatis ; racemis saepe 

 fasciculatis sessilibus brevibus plurifloris cum calyce viscoso-glandulosis. 

 — Rami tortuosi, nodosi, nascentes cinereo-villosi. Stipulfe setaceae, 

 persistentes. Foliola 7 -9-juga, baud stipellata, petiolulata, 6-9 lin. 

 longa, 3-4 lin. lata, parce appresso-puberula, mucrone conspicuo. 

 Flores ex axillis foliorum annotinorum orti ; racemi brevissimi saspius 

 bini vel terni ; pedicelli conferti, 3 lin. longi. Bractna parva3, caducae. 

 Calyx ebracteolatus, breviter campanulatus, 5-fidus, pilis capitato-glan- 

 dulosis viscosus ; lobis triangulari-lanceolatis acutis, 2 superioribus paullo 

 brevioribus et connatis. Corolla ut videtur pallide lutea ; vexillum 

 latissimum, emarginatum, basi biauriculatum, auriculis parvis ; carina 

 obtusa alis paullo breviori. Stamina diadelpha ; antheraa conformes. 

 Ovarium subsessile, lineare, glanduliferum, 10 -12-ovulatum, continuum. 

 Stylus gracilis a medio ad apicem subunilateraliter villosus : stigma 

 capitatum. Legumen ignotum. 



