1921] 
PAYSON—MONOGRAPH OF THE GENUS LESQUERELLA 215 
pubescent, ellipsoid, inflated, slightly obcompressed, particu- 
larly when young, about 5mm. EC 
long; styles shorter than the 
pods; septum nerved, areolae 
not tortuous; ovules 7-12 in 
each cell, funiculi attached to 
septum for less than one-half 
theirlengths;seeds not winged. 
Distribution: Arizona. 
Specimens examined: 
Arizona: without definite lo- 
cality, 1860, Pülmer (U. S. Nat. E8- 27. L. ceres. Renae 7% 
Herb.); Belmont, June 29, 
1892, Toumey 65 (U. S. Nat. Herb.); dry soil near Kendrick 
Mountains, June 28, 1901, Leiberg 5599 (U. S. Nat. Herb.); com- 
mon on slopes near Elgin, April 11, 1908, Tidestrom 823 (U. S. 
Nat. Herb., in part). 
This interesting plant, though possessing few characteristic 
peculiarities, is evidently quite distinct from other known spe- 
cies of the genus. It is to be associated with Kingii and its 
relatives, and like them develops a dense rosette. It may be 
distinguished from any of them by the spatulate basal leaves 
in which the blade tapers gradually to the broad petiole. No 
specimens have been seen in completely mature condition. It 
is apparently a very rare plant. 
44. L. Kingii Wats. Proc. Am. Acad. 23: 251. 1888; Wats. 
in Gray, Syn. Fl. N. Am. 1°: 117. 1895. 
Vesicaria Kingii Wats. Proc. Am. Acad. 20: 353. 1885. 
Perennial, silvery stellate throughout, stellae small, rays few 
to numerous, distinct or irregularly coherent, forked at the base; 
stems r&ther lax, 1-2 dm. long, usually unbranched; terminal 
bud remaining undeveloped; radical leaves 1.5-7 cm. long, 
blade ovate to suborbicular, entire, obtuse, narrowed abruptly 
to the slender petiole which usually exceeds the blade in length; 
cauline leaves oblanceolate, .5-2 em. long, entire, obtuse or acute; 
petals narrowly spatulate, yellow or fading purplish, 7-8 mm. 
long; filaments linear; fruiting inflorescence elongated; pedicels 
horizontal or recurved, decidedly sigmoid, 8-12 mm. long; 
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