94 PROCEEDINGS OF THE AMERICAN ACADEMY 



§ 1. Annuals, usually more or less farinose, not pubescent nor glan- 

 dular, nor sweet-scented. Embryo completely surrounding the 

 albumen. — Chenopodiastrum, Moquin. 



* Pericarp very easily separated from the seed. Leaves 

 entire or rarely sinuate-dentate, often hastate-lobed. Native 

 species. 



1. C. BosciANUM, Moq. Erect, slender, 2 feet high, loosely branched, 

 nearly glabrous ; leaves thin, oblong- to linear-lanceolate, 1-2 inches 

 long, acute, attenuate into a long slender petiole, the lower sinuate- 

 dentate or often all entire ; flowers very small, solitary or in small 

 clusters upon the slender branchlets ; calyx green, not strongly cari- 

 nate, partially covering the at length naked seed, which is half a line 

 broad. — Pennsylvania and Kentucky to " Carolina " (Chapman) and 

 Texas. 



Chenopodiiim Boscianum. Moquin, Enum. Chenop. 21 ; DC. Prodr. 132. 61. 



Chapman, 376. 

 Chenopodium pohjspermum, var. spicatum. Gray, Manual, 2 ed., 863. 

 Chenopodiiim album, var. Boscianum. Gray, Manual, 407, excl. syn. C. Ber- 



landieri. 



Collectors: — 216 Drummond ; 2898 Berlandier ; Short; Porter; Green. 



2. C. Fremontii, Watson. Erect, slender, 1-2 feet high, branching, 

 somewhat mealy ; leaves broadly triangular-hastate, J-1 inch long, with 

 obtuse or abruptly acute lobes, truncate or cuneate at base, the upper 

 sometimes becoming oblong to linear-lanceolate, entire, with long 

 petioles ; flowers small, mealy, scattered in few-flowered clusters upon 

 the slender open panicled branchlets, the sepals strongly carinate, nearly 

 covering the mature fruit ; seed half a line broad. — From Colorado to 

 the Sierra Nevada and southward to New Mexico. 



Chenopodium Fremontii. Watson, King's Rep. 5. 287. Porter, Fl. Col. 117. 



Collectors : — Fremont ; 570, 1731 Wright; 973 Watson; 484 Vasey; 

 Cooper; 337 Greene. 



Var. iNCANUM. Densely fiirinose, low and ratlier stout, 3-6 inches 

 high, diffusely branched ; flowers crowded in close contracted panicles ; 

 leaves thick, ^ inch long or less, hastately lobed. — Colorado and New 

 Mexico. 



Collectors : — Marcy ; 722 Fendler ; 339 Greene. 



3. C. LEPTOPHYLLUM, Nutt. Densely mealy or rarely nearly 

 glabrous, ^1^ feet high, simple or branched, often strict; leaves 

 hnear, ^1 inch long, entire, acute and usually mucronate, rather 



