[Vol. 8 
188 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
ing; pods ascending or erect, sessile, glabrous, globose or slightly 
elongated, 3-4 mm. in diameter. 
Distribution: central to western Texas. 
Specimens examined: 
Texas: 1851, Wright 848 (U. S. Nat. Herb.); Llano Valley, 
1888, Reverchon 42 (Mo. Bot. Gard. Herb.); Grape Creek, Gil- 
lespie County, Jermy (Mo. Bot. Gard. Herb.); caleareous open 
ground, Boerne, Kendall County, April 21, 1917, Palmer 11622 
(Mo. Bot. Gard. Herb.) ; summits of hills, New Braunfels, March, 
1846, Lindheimer 326 (U. S. Nat. Herb. and Mo. Bot. Gard. 
Herb.); New Braunfels, May, 1850, Lindheimer 301 (Mo. Bot. 
Gard. Herb.); New Braunfels, May, 1850, Lindheimer 669 (U. S. 
Nat. Herb. and Mo. Bot. Gard. Herb.); Bexar County, June, 
1904, Jermy (Mo. Bot. Gard. Herb.); rocky soils, San Antonio, 
March 18, 1903, Reverchon (Mo. Bot. Gard. Herb.); light soil, 
Mackenzie's Well, Crockett County, May, 1888, Reverchon 42 
(U. S. Nat. Herb.). 
This variety occurs with the species throughout its range, 
and there seems no reason to believe that it is anything more 
than an occasional variation from the typical form since it dif- 
fers from the species in but one character—the absence of a 
stipe to the pod. 
27. L. Gordonii (Gray) Wats. Proc. Am. Acad. 23:253. 1888; 
Coulter, Contr. U. 8. Nat. Herb. 2:18. 1895; Wats. in Gray, 
Syn. Fl. N. Am. 1': 120. 1895; Wooton & Standley, Contr. 
U. S. Nat. Herb. 19: 275. 1915; Armstrong, Western Wild 
Flowers, 184. 1915; Rydberg, Fl. Rocky Mountains, 333. 1917. 
Vesicaria Gordoni Gray, Bost. Jour. Nat. Hist. (Pl. Lindh.) 
6:149. 1850; Walp. Ann. 2: 38. 1851. 
Alyssum Gordonii Kuntze, Rev. Gen. Pl. 2: 931. 1891. 
Annual, canescent with long-rayed, overlapping stellae, rays 
distinct, forked at the base; stems 1-3.5 cm. long, decumbent, 
few to many, branched in the older, more vigorous plants; ter- 
minal bud producing either a normal stem or frequently a short 
stem floriferous nearly to the base; radical leaves 1.5-3.5 cm. 
long, narrowly oblanceolate or spatulate, acute, tapering to a 
slender petiole, entire or somewhat repand, rarely lyrate with 
