1894.] North American Species of Amaranthus. 271 
7. A. CHIHUAHUENSIS Wats. Proc. Amer. Acad. 21: 436. 
1886. 
Leaves ovate-lanceolate to oblong: sepals broadly spatulate, 
setose-apiculate with green (sometimes branching) mid-vein 
much thickened at base. Apparently not found in any of the 
border states. 
Collected by Palmer at Hacienda San Miguel, Chihuahua 
(no. 197), in 1887. 
8. A. Bigelovii, n. sp. 
Moneecious, erect, 4 to 5° high with abundant slender 
erect rather short branches: leaves lanceolate, obtuse, 4 to 
7” long, with long slender petiole, much reduced toward the 
apex of the branches, becoming oblong-elliptical, all promi- 
nently mucro-tipped, with prominent veins: inflorescence 
leafy, axillary, crowded toward the extremity of branch, the 
stem terminated by a leafy spike: bracts subulate, pungent, 
slightly exceeding the calyx, 3" long: staminate flowers 
with five stamens and five sepals: pistillate flowers with sepals 
Spreading, rather unequal, spatulate-obtuse, the two lateral 
acute, the one next the bract mucronate-tipped: utricle cir- 
cumscissile with calyptra very much folded and retracted 
after dehiscence.—Collected in the Mountains of the Cibola 
in 1852 by Dr. Bigelow (no. 1,190). Distributed as Sarratza 
Berlandieri Mogq. 
Var. EMARGINATUS (Torr.). 
Sarratia Berlandieri var. emarginata Torr. Bot. Mex. Bound. 179. 1859. 
_Lacinize of the female calyx widely wedge-shaped, or. 
pnate.—Collected at Camp Green, New Mexico, by Dr. 
arry. : 
* «Plants dioecious. 
+ Utricle indehiscent: sepals equal. 
9. A. GREGGII Wats. Proc. Amer. Acad. 12: 274. 1877. 
Differs strikingly from both A. Torreyi and A. Palmert in 
habit and in the very short bracts, while the utricle character 
not only of this but particularly of the following variety 1s 
smarkably suggestive of that of A. pumilus.—Collected by 
Dr. Gregg near the mouth of the Rio Grande in bee? ee 
fact : d, and tha 
=F pistillate lowers od kere ace 4 abe Hant are in existence, 
aces this species on a rather perilous footing. 
2I—Vol, AIX Wo. 7. 
