237 



also gives out the same delicious odor when the flowers at first open. It 

 is often noticeable 100 feet from the plants. 



MENTZELIA CHRYSAXTHA, new species. 



Biennis, ramosissima, caule albido asperate ; foliis ovato-laneeolatis 

 sinuato-dentatis, inferioribus versus basin angustatis, superioribus sse- 

 pius basi lata sessilibus; floribus subsessilibus bractealatis oppositifo- 

 liis; pomeridianis aureis, calycis laciniis lanceolato-subulatis tubo 

 longioribus ; petalis sub-10 lanceolatis acutis longe unguiculatis iuteri- 

 oribus in stamina latiora abeuutibus : capsula cylindrica sea ovata ; 

 seminibus ovatis compressis anguste niarginatis nee alatis. 



Barren clayey limestone hills on the Arkansas, near Caiion City, with 

 Frankenia, several shrubby Atriplex, Juniper us occidentalis,Qtu., where I 

 discovered it in September, 1874 ; also in Southern Utah, Dr. Parry, 

 1874, Xo. 78, doubtfully referred to J/. multiflora. 



From the large, fleshy, branching, not fusiform root rise branching 

 stems 1-2 feet high ; leaves 1-3 inches long, J-l J inches wide, more or 

 less coarsely dentate, upper ones often entire ; flowers 15-20 lines in di- 

 ameter, open in the afternoon (and evening ?); petals 6-9 lines long, 2-3 

 lines wide, often less than 10 in number, the innermost smaller and an- 

 theriferous ; ovary with three placentre, each bearing two series of ovules 5 

 capsule 3 lines wide, in some , in others fully 1 inch long ; seeds very 

 narrowly margined, similar to those of J/. hevicaulis, but much smaller 

 and not winged, surface facetted. Apparently near J/. pumila^ as de- 

 scribed in Torr. & Gr. Fl. X. A., 1, 535, but that species is said to have 

 small terminal flowers and winged seeds. Xame from the golden-yel- 

 low color of the flowers, by which it is easily distinguished from the 

 different cream-white species which grow in the same region. This color, 

 however, gradually fades in drying, or becomes brown ; this is also the 

 case in the yellow flowers of J/. hevicaulis, while the flowers of If. oligo- 

 sperma retain their color much better. GEO. ENGELMANN. 



ECHINOCACTUS WHIPPLEI, E. & B. 



La Plata Valley and mesa Verde, 5,000 to 8,000 feet. 

 CEREUS CLESPITOSUS ; Eng., var. castaneus, Eng. 



South of Pueblo, mesas of the Saint Charles. 

 OPU^TIA (CYLIXDRO-PUXTIA) ? 



Spreading over the ground ; sometimes the small joints ascending to 

 a height of 1 foot ; flowers small, yellow ; fruit yellow and unarmed. 

 In flower about the 1st of July. Not determinable on account of the 

 lack of mature seeds. La Plata Valley, Mancos, and McElmo, 6.500 feet. 



ARALIA NUDICATJLIS, L. 

 Ute Pass and Greenhorn Kange. 



SYMPHORICARPUS OREOPHLLUS, Gray. 



Mountains near Caiion City. 

 GALIIIM ANGUSTIFOLIUM, Xutt. 



Mancos Caiion and Cariso, 5,500 feet. 

 GALIOI BRAXDEGEI, new species. 



Cffispitoso-depressum, parvum, glabrum; radicibus fibrpsis; foliis 

 quarternis obovatis vel spathulatis fere eveniis, lin. 1-3 longis j pedun- 

 culis unifloris solitariis geministe uudis ; flore albido semilineam longo ; 

 fructu Ijevi glabro. 



