CHENOPODIACE^E. (GOOSEFOOT FAMILY.) 407 



2. C. ALBUM, L. (LAMB'S-QUARTERS. PIGWEED.) Erect (1- 3 high), 

 mealy and pale, sometimes green and the mealiness obscure ; leaves varying from 

 rhombic-ovate to lanceolate or the uppermost even linear, acute, all or only the lower 

 more or less anyulate-t oothed ; clusters spiked-panicled, mostly dense; seed with 

 acute or bluntish margins. Common, especially in cult, ground : extremely 

 variable. The genuine C. album is considerably whitish-mealy, at least the 

 inflorescence, which is dense ; the calyx with strongly keeled lobes, and com- 

 pletely enclosing the fruit. A green form with somewhat entire leaves and less 

 dense inflorescence is C. viride, L. (Nat. from Eu.) 



Var. BOSCIANUM. Loosely branched, more slender, the mealiness obscure 

 or slight and only on the inflorescence, which is laxer, the flowers smaller ; calyx 

 incompletely covering the fruit, its lobes moderately or slightly if at all keeled ; 

 leaves inclined to be entire. (C. Boscianum, Moquin. C. Berlandieri, Moquin, 

 an intermediate form. C. polyspermum, var. spicatum, Ed. 2.) More shady 

 places, Pennsylvania and southward. In some forms appears as if a distinct 

 species ; seemingly indigenous southwestward. 



3. C. GLATJCUM, L. (OAK-LEAVED GOOSEFOOT.) Low (5'- 12{ high), 

 spreading, glaucous-mealy, leaves sinuately pinnatijid-toothed, oblong, obtuse, pale 

 green above ; clusters spiked, small ; calyx-lobes not at all keeled ; 'seed sharp- 

 edged, often vertical. Streets of towns : rather scarce. Brackish borders of 

 Onondaga Lake. (Nat. from Eu.) 



4. C. URBICUM, L. Rather pale or dull green, nearly destitute of meali- 

 ness, with erect branches (l-3 high) ; leaves triangular, acute, coarsely and 

 sharply many-toothed ; spikes erect, crowded in a long and narrow racemose panicle ; 

 calyx-lobes not keeled ; seed with rounded margirts. Var. RHOMBir6LiUM, 

 Moquin (C. rhombifolium, Muhl.}, is a form with the leaves more or less wedge- 

 shaped at the base, and with longer and sharper teeth. Not rare eastward. 

 (Nat. from Eu.) 



5. C. MURALE, L. Resembles No. 4, but less erect, loosely branched (l-l 

 high) ; leaves rhomboid-ovate, acute, coarsely and sharply unequally toothed, thin, 

 bright green; spikes or racemes diverging, somewhat corymbed; calyx-lobes scarcely 

 keeled ; seed sharp-edged. Boston to Illinois : rare. (Adv. from Eu.) 



6. C. HTBRIDUM, L. (MAPLE-LEAVED GOOSEFOOT.) Bright green 

 throughout; stem widely much branched (2 -4 high); leaves thin (2' -8' 

 long), somewhat triangular and heart-shaped, taper-pointed, sinuate-angled, the 

 angles extended into afew large andpointed teeth ; racemes diffusely and loosely 

 panicled, leafless ; calyx not fully covering the fruit, its lobes keeled ; seed sharp- 

 edged, the thin pericarp adhering closely to it. Common. Heavy-scented, like 

 Stramonium. (Nat. from Eu.) 



2. BOTRYOIS, Moquin. (AMBRINA, Moquin, in part.) Not mealy, but 

 more or less viscid-glandular and pleasant-aromatic : seed frequently vertical, 

 obtuse-edged: embryo forming only two thirds or three quarters of a ring. 



7. C. B6TRYS, L. (JERUSALEM OAK. FEATHER GERAXIUM.) Glan- 

 dular-pubescent and viscid ; leaves slender -petioled, oblong, obtuse, sinuate pin- 

 natifid; racemes cymose-diverging, loose, leafless; fruit not perfectly enclosed. 

 Escaped from gardens. (Adv. from Eu.) 



