[Vol. 8 
174 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
to base, areolae not tortuous; ovules 2 in each cell, funiculi at- 
tached to septum for about only one-fourth their lengths. 
Distribution: in the mountains of southern New Mexico. 
Specimens examined: 
New Mexico: White Mountains, Lincoln County, July 30, 
1897, Wooton 245 (Rky. Mt. Herb. and Mo. Bot. Gard. Herb.); 
Tularosa Creek, Lincoln County, Aug. 18, 1899, Wooton (U. S. 
Nat. Herb.); Clouderoft, Aug. 24, 1901, Wooton (U. S. Nat. 
Herb. and Rky. Mt. Herb.); vicinity of Cloudcroft, Aug. 8, 1899, 
Wooton (U. S. Nat. Herb.); Saeramento Mountains, Aug. 7, 
1905, Wooton (U. S. Nat. Herb.); Luna, July 28, 1900, Wooton 
(U. S. Nat. Herb.); White Mountains, Lincoln County, Aug. 
18, 1899, Wooton (Deam Herb.). 
L. aurea in technical characters does not differ greatly from 
L. recurvata but is quite a different plant in general appearance 
due to its coarse, weedy habit of growth. The number of ovules 
is reduced to 2, the basal leaves apparently are not so frequently, 
if at all, pinnate, and the pods instead of being definitely glo- 
bose are often elongated, rather thin-walled, and irregularly 
inflated. Specimens from the same locality show glabrous and 
stellate pods on different plants. Wooton and Standley record 
it as occurring in the transition zone. 
21, L. argentea (Pursh) MacMillan, Metasp. Minn. Valley, 
263. 1892; Rydb. Contr. U. S. Nat. Herb. 3: 150. 1895; 
Britton & Brown, Ill. Fl. 2: 137. 1897, and ed. 2, 2: 155. 1913; 
Rydb. Mem. N. Y. Bot. Gard. 1: 179. 1900; Rydb. Fl. Colo. 
155. 1906; Robinson & Fernald in Gray, Manual, ed. 7, 424. 
1908; Nelson in Coulter & Nelson, Manual Cent. Rocky Moun- 
tains, 218. 1909; Gleason, Bull. Ill. State Lab. Nat. Hist. 9: 
48. 1910; Petersen, Fl. Nebr. 62. 1912; Clements & Clements, 
Rocky Mountain Flowers, 25, 1914. Bergman, Fl. North Da- 
kota, 191. 1918. 
Myagrum argenteum Pursh, Fl. Am. Sept. 2: 434. 1810. 
Alyssum ludovicianum Nutt. Gen. N. Am. Pl. 2: 63. 1818. 
Vesicaria ludoviciana DC. Syst. 2: 297. 1821; Torr. & Gray, 
Fl. N. Am. 1: 101. 1838; Gray, Bost. Jour. Nat. Hist. (Pl. 
Lindh.) 6:149. 1850; Porter & Coulter, Syn. Fl. Colo. 7. 1874; 
