OF ARTS AND SCIENCES. 201 



Dalea Pringlei. D. IcEvxcjatce proxima, etiam glaberrima spicis 

 obloiigis cyliiidraceisque villosibsimis exceptis ; caulibus gracilibus e 

 basi sulfrutescente pedalibus ; foliolis (lin. 1-2 lorigis) obovatis seu 

 ovalibus puiictatis ; bracteis ex ovata aciiminatis fiore parum breviori- 

 biis ; calycis lobis deltoiilco-subulatis tubo a-quilougis corolla parva 

 ktte purpurea a^quantibus. — Foot-hills of the Santa Catalina Moun- 

 tains, S. Arizona, Pringle, April and May, 1881. 



CouRSETiA MiCROPHVLLA. Foliolis 5-8-jugis absquc imparl (lin. 

 1-3-longis) subcoriaceis oblongis cuspidato-mucronatis sericeo-pubes- 

 centibus demum glabratis, venis perobscuris ; racemis laxe paucifloris ; 

 calycis glandulosi lobis e basi lata lanceolatis tubo sublongioribus ; 

 corolla alba nunc roseo tincta, carina obtusiuscula ; legumine glandu- 

 loso toroso compresso 5-8-spermo. — Eocky canons of the Santa 

 Catalina Mountains, S. Arizona, flowering in April, Prinyle, Lem- 

 rnon. — Shrub with long and slender flowering branches; the fruit 

 obtained only by Mr. and Mrs. Lemmon. 



Ckacca Edwardsii, Gray, PI. Wright, ii. 35. C. glabrescens, 

 Ilemsley, Biol. Centro-Amer. i. 2G2, as to Mexican plant, here re- 

 ferred by an oversight. Seems to vary widely. Taking the loosely 

 branching and diffuse specimens with sparse sericeous pubescence as 

 the type, the leaflets of which are commonly 9 or 7, and are some- 

 times an inch long, there are two marked varieties to be noted, viz. 



Var. sericea, with dense sericeous pubescence apj^arently per- 

 sistent on the lower face of the smaller oblong leaflets. This Mr. 

 Lemmon collected, in the spring of 1881, in Spring Creek Canon, of 

 the Santa Catalina Mountains ; and Mr. Pringle about the same time 

 in the Santa Rita Mountains. It is distinguished from C. mollis, 

 Benth. (as is the species), by the less attenuated calyx-segments being 

 decidedly shorter than the carina, inflorescence less villous, and the 

 ovary glabrous. 



Var. glabella, with far less and minuter or sometimes quite 

 deciduous pubescence, lower and strict stem, and more numerous leaf- 

 lets, these from oval to roundish, on the lower leaves 9 or 11, on the 

 others 15 to 17 in number. This was collected by Wright, and again 

 by Lemmon in 1881, along with the typical form. 



Ruiius LASIOCOCCUS. Inter R. pedutum et R. Chamcemorum ; 

 caulibus herbaceis humifusis cinereo-puberulis ; stipulis ovatis sub- 

 scariosis ; foliis cordato-rotundis 3-5-lobatis cum paucis trisectis, lobis 

 segmentisve obtusissimis crebre duplicato-dentatis ; pedunculis ramos 

 breves paucifoliatos terminantibus 1-2-floris ; calycis segmentis ovatis 



