206 BOTANY. 
lanceolate, hairy, acute, as long as or exceeding the pedicels; corolla 
whitish, 6” long. Choisy, in DC. Prod. vol. ix, p. 443, speaks of the 
peduncles as being 1—3-flowered. Im all my specimens, the flowers are 
solitary —Ash Creek, Arizona (152 a, Loew, and 307). 
Evotvuius Arizonicus, Gray.—Procumbent or ascending, 6-12’ long, 
sillcy-hairy ; leaves linear-lanceolate to lanceolate, acute, 4-10’ long; 
peduncles capillary, 6-18’ long, bracteate at the forks and bearing 1-3 
flowers (usually 3); flowers blue, 6-8” in diameter, salver-shaped; sepals 
acute; anthers distinctly auriculate at base; pedicels reflexed after fall of 
the flower; ovary 1-celled——Camp Grant, Ariz. (8376 and 151 a, Loew, 
Arizona). 
Cressa Cretica, L., var. TruxtLuensis, Chois.—Arizona. 
CUSCUTE. 
By DR. GEORGE ENGELMANN. 
Cuscuta (C1LIsToGRAMMICA) SALINA, Engelm.—Stems slender, low; 
flowers (15-24 lines long) delicate white, pedicelled in loose cymes; calyx- 
lobes ovate-lanceolate acute, as long as the similar but mostly broader and 
overlapping denticulate lobes, and as the shallow-campanulate tube of the 
corolla; filaments about as long as the oval anthers; fringed scales mostly 
shorter than the tube, sometimes incomplete; styles equalling or shorter 
than the somewhat pointed ovary ; capsule surrounded (not covered) by the - 
withering corolla, mostly 1-seeded. 
Saline or brackish marshes in the Gila Valley on Sueda, Rothrock 
(333), 1874; also on the California coast, near Santa Barbara, on Frankenia 
and Salsola, Rothrock (101), 1875. Similar to C. Californica, from which 
it is at once distinguished by its larger flowers and the presence of the 
infra-stamineal scales. : 
Cuscuta (CLISTOGRAMMICA) ARVENSIS, Beyrich——Ash Creek, on Soli- 
dago, Rothrock (311),1874, and Camp Lowell, on Datura meteloides, Rothrock 
(708), 1874. These specimens, especially the latter, growing on a very 
juicy nurse-plant, have coarser stems than the Southeastern form and larger 
flowers and fruit; the calyx is not nari its lobes rounded; those of 
the corolla very acute. 
