116 PROCEEDINGS OF THE AMERICAN ACADEMY. 



1 ^ lines long : calyx striate, sparingly silky, entirely obscured by the 

 bracts : petals white or nearly so, oblong, obtuse, attenuate below to 

 slender claws: stamens 10. — Collected at Las Pinitos, Sonora, at 

 6,100 feet, by Mr. Hartuian, 14 October, 1890 (no. 133). A species 

 with the habit of a Petalostemon rather than a Dalea y the fresh leaves 

 very aromatic when crushed. 



Sedum Lumholtzii. Hoary puberulent: roots fibrous: stems 

 herbaceous, decumbent, 5-10 inches high, ancipital, simple below the 

 spreading cymose inflorescences : leaves soft pubescent and ciliated ; 

 the basal ones crowded, spatulate, 4-6 lines long ; the cauline spatu- 

 late-oblong, obtuse, somewhat narrowed to a slightly extended base, 

 about an inch in length, 2-3 lines broad : flowers numerous, pedicel- 

 late, white: sepals lance-oblong, obtusisb, \\ lines long, not at all 

 extended at the base: petals lanceolate, acute, 2^- lines long: carpels 

 5, pruinose, erect, attenuate ; styles persistent ; scales small, truncate, 

 bright red ; seeds oblong, \ line in length. — Collected at Nacory, 

 Sonora, at 3,700 feet, by Mr. Hartman, 4 December, 1890 (no. 287) ; 

 and at Huchuerachi, Sonora, by Mr. Lloyd, 8 December, 1890 

 (no. 389). 



SiCYOS COLLINUS. Stem slender, glabrous, furrowed : tendrils 

 2-3-parted : leaves thin, 5-lobed, scarcely paler beneath, li-2i inches 

 long, usually narrower, roughened upon both surfaces with minute 

 whitish tubercular hairs ; lobes ovate to lanceolate, acute or acuminate, 

 sharply dentate or denticulate; the terminal ones often elongated; 

 petioles 4-12 lines long: $ peduncles 1^-3 inches in length, smooth 

 or nearly so ; inflorescences slender, usually simple, slightly puberulent 

 or quite smooth, ^-1^ inches long, 10-35-flowered ; pedicels very 

 slender, spreading, smooth, equal, slightly thickened at the apex, l|-2 

 lines in length : calyx teeth very minute or obsolete : corolla rotate- 

 campanulate, 2^3 lines in diameter, finely granular ; lobes broadly 

 ovate, obtusish : staraineal column (including the anthers) | line long: 

 9 peduncles 2 lines long, smooth ; fruits 2-5 in a head, ovate, acumi- 

 nate, compressed, nearly 3 lines long, sparingly setose, otherwise nearly 

 glabrous; setae H lines long. — Collected on hills near Chihuahua, 

 by Mr. C. G. Priugle, 23 October, 1S85 (no. 568) ; and in the Canon 

 de San I^iego, Chihuahua, by Mr. Hartman, 17 September, 1891 

 (no. 773). A species near S'. Deppei, Don, but with leaves smaller 

 and somewhat more acutely lobed ; peduncles and inflorescences nearly 

 or quite glabrous ; petioles and pedicels shorter ; and male flowers a 

 little smaller. 



Galium Wrightii, Gray, var. latifolium. Pubescent below as 



