OF ARTS AND SCIENCES. 365 



near Flagstaff, Arizona, by Mr. and Mrs. J. G. Lemmon, September, 

 1884, in fruit. 



I V ESI A Lemmoni. Branches of the caudex rather slender : leaves 

 silky-villous, the leaflets (3 to 5 pairs) linear-oblong, tridentate at the 

 apex, about an inch long : flowering stems slender, a foot high, bear- 

 ing one or two small leaves, the panicle very loose and spreading, 

 sparingly pubescent ; flowers solitary on slender pedicels : calyx-lobes 

 lanceolate, acuminate, twice longer than the linear appendages ; petals 

 yellow, obovate, little exceeding the calyx : stamens 15 : carpels 3 to 5 ; 

 receptacle very villous. — On vertical rocks bordering Oak Creek, near 

 Flagstaff, Arizona, collected by Mr. and Mrs. J. G. Lemmon, August, 

 1884. Resembling Horkelia tridentata in its tridentate (though nar- 

 rower) leaflets, but a true Tvesia, and differing from that species also in 

 its open panicle, more attenuate sepals, yellow petals, and more numer- 

 ous stamens. Only a few plants were found. 



Heuchera racemosa. Glandular-hispid : leaves reniform-cor- 

 date. crenately lobed and toothed, 1 or 2 inches broad : flowering stems 

 4 to 10 inches high, bearing 2 or 3 petiolate leaves and a loose few- 

 (G-15-) flowered raceme; pedicels short (a line long or less) : calyx 

 very broadly campanulate, 2 (becoming 3) inches long, acutely lobed ; 

 petals glandular, linear, entire and acuminate or more or less lacin- 

 iately toothed toward the top, a little exceeding the calyx-lobes : sta- 

 mens 5, very short, opposite to the calyx-lobes : styles very short ; 

 capsule subglobose, very shortly beaked : seeds very numerous, brown- 

 ish, with wrinkled testa, not muricate. — On cliffs of Mount Adams, 

 Washington Territory, at 7-8,000 feet altitude, by ^Y. N. Suksdorf, 

 July, 1883. With the habit of I/. Hallii, but the stem leafy and the 

 inflorescence more strictly racemose, and peculiar in its frequently 

 toothed petals. 



Sedum stelliforme. Branching from a stout fleshy base, with 

 fleshy-fibrous roots ; stems 2 to 4 inches high, leafy, simple or 

 branched : leaves lanceolate to linear, 2 to 4 lines long, scattered : 

 branches of the inflorescence (2 or 3) h to 1 inch long ; pedicels very 

 short : petals white tinged with purple, 2 or 3 lines long, equalling the 

 stamens, twice longer than the lanceolate sepals : mature carpels di- 

 varicately divergent, usually lined with purple, 2 lines long. — In the 

 Huachuca Mountains, Southern Arizona (2702 Lemmon, 1882), and 

 near Fort Wingate, New Mexico, by Dr. W. Matthews, U. S. A., in 

 1883. 



CuPHEA GLUTiNOSA, Cham. & Schlecht. A slender glandular- 

 pubescent perennial, with decumbent or ascending stems a span high; 



