344 The Botanical Gazette. [August, 
Kansas and Arkansas through Texas to Arizona and through- 
out northern Mexico. Type in herb. Columbia College. 
**Mostly suffruticose, perennial, ascending or erect. 
+ Staminodia (alternating lobes) very short and broad, some- 
times slightly emarginate. 
2. C. SUFFRUTICOSA (Torr.) Wats. Bot. Calif. 2: 43. 1880. 
Alternanthera suffruticosa Torr. Bot. Bound. 181. 18509. 
This species has a thick shrubby base and specimens show 
branches of the preceding year among the flowering shoots.— 
Reported only from western Texas (Wright 1757 and 592; 
Harvard 110 in 1883). Wright’s specimens are in herb. 
Gray, Columbia College and Nat. herb. 
++ Staminodia longer, acute (nearly one-half the length 
of the filament). 
3. C. OBLONGIFOLIA Wats. Proc. Amer. Acad. 17: 376. 1882. 
C. cryptantha Wats. 1. c. 26: 125. 1891. 
Stems procumbent, often 6™ long, suffruticose or shrubby 
(‘‘sometimes showing several years’ growth at the base,” Co- 
ville: Bot. Death Valley 179), the whole plant covered with 
a very dense persistent white stellate pubescence: branches 
short, ascending or erect, much crowded: leaves ovate-oblong 
or oblanceolate to round spatulate, or sometimes minute, 
elliptical, densely aggregated: flowers in small axillary clus- 
ters, deeply imbedded in tomentum, the reduced upper leaves 
of the flowering branches often forming a sort of involucre: 
sepals hyaline, white: staminodia present in the form of acute 
lobes between the filaments, and scarcely less than half their 
length.—Confined to south-eastern Arizona and the adjoin- 
ing regions of California. Types of the Newberry collection in 
herb. Gray, and Nat. herb.: of Pringle in herb. Gray, Coul- 
ter, J. D. Smith, and Nat. herb.; of Parish brothers in the 
same herbaria. 
It will be noticed that the forms merged under this species 
fall together very naturally by virtue of their limited range, 
