354 PHOCEEDINGS OF THE AMERICAN ACADEMY 



long or more: flowers yellow, 4 lines long: pod compressed-globose 

 (replura circular), 2 to 4 lines long, sessile upon a more or less flex- 

 uous pedicel 4 to 8 lines long: style very slender, about 2 lines long. 

 — Near Yreka, California, E. L. Greene, 187G; Multnomah County, 

 Oregon, T. J. Ilowell ; "White BUiffs of the Columbia, Washington 

 Territory, T. S. Brandegee. The allied V. montana of the Rocky 

 Mountains has the looser and less silvery pubescence evidently stellate, 

 and oblong or oblong-ovate acute capsules. 



Draba (Chrysoduaba) Howellii. Perennial with a branching 

 cespitose base, the scape-like flowering stems about three inches high, 

 sparingly stellate throughout : leaves rosulate, broadly spatulate, rarely 

 obtusely toothed, 3 to 5 lines long : racemes loose, the lai-ge bright 

 yellow flowers on slender ascending pedicels 3 to 5 lines long ; sepals 

 yellowish, 1^ lines long; petals 3 to 4 lines long: pod pubescent, ob- 

 long, acute, 4 or 5 lines long including the long slender style (a line 

 long). — Siskiyou Mountains, California, Thomas Ilowell, June, 1884. 

 Resembling forms of D. alpina, with larger deep-yellow flowers and 

 longer long-beaked usually unsymmetrical pods. 



Ataimisquka emargixata, Miers (Trans. Linn. Soc. 21. 2, t. 1). 

 This Capparidaceous species, originally discovered by Miers in the 

 province of Mendoza, of the Argentine Republic, and credited to Cali- 

 fornia in Coulter's collection, has been recently found bv Mr. Printrle 

 upon the sandy plains bordering the Altar River in Northwestern 

 Sonora. It is here a large shrub, or sometimes a small tree, 15 or 20 

 feet high, and differing in no respect from the South American form. 



Cerastium sericeum. Stems numerous, stout, 1 to 2 feet high, 

 very leafy and densely silky-villous below, branching and glandular- 

 pubescent above : leaves oblong-lanceolate, sessile, an inch or two long, 

 the lower densely villous, the upper less so : panicle spreading and 

 loosely flowered : sepals oblong or lanceolate, scarcely acute, 2 lines 

 long, equalling the petals : capsule nodding, more than twice longer : 

 seeds strongly tuberculate. — Collected in the Huachuca Mountains, 

 Arizona, at 8,000 feet altitude, by Mr. and Mrs. J. G. Lemmon in 

 1882, and in the Santa Rita Mountains by C. G. Pringle in 1884. 

 The seeds are twice larger and much more coarsely tuberculate than 

 in C. nutans^ to which it has been referred, though bearing little real 

 resemblance to it. 



Arenaria (Alsixe) Howellii. A widely branching annual, 

 about a foot high, glandular-hispid, but the internodes usually glabrous : 

 leaves thick, narrowly lanceolate or linear with a claspin'j; base, fi to 

 9 lines long, blunt, spreading ; bracts green, triangular-ovate to lanceo- 



