432 CHENOPODIACE.E. (GOOSEFOOT FAMILY.) 



* * Pericarp persistent upon the smooth seed ; leaves more or less sinuate-den- 

 tate (except in C. polyspermum). 



C. POLYSPERMUM, L. Low, often spreading, green and wholly destitute 

 of mealiness ; leaves all entire, oblong or ovate and on slender petioles ; flowers 

 very small, in slender panicles in all the axils, the thin lobes of the calyx very 

 incompletely enclosing the fruit ; seed obtuse-edged. Sparingly naturalized 

 in the Eastern States. (Adv. from Eu.) 



C. ALBUM, L. (LAMB'S-QUARTERS. PIGWEED.) Erect (1-4 high), 

 more or less mealy ; leaves varying from rhombic-ovate to lanceolate or the 

 uppermost even linear, acute, all or only the lower more or less angulate-toothed ; 

 clusters spiked-pan icled, mostly dense ; calyx (f " wide in fruit) with strongly 

 carinate lobes, nearly or quite covering the seed. Introduced everywhere. 

 (Nat. from Eu.) Var. V^RIDE, Moq., more common eastward, is less mealy 

 and with less dense inflorescence. 



C. tiRBicuM, L. Rather pale or dull green, nearly destitute of mealiness, 

 with erect branches (1-3 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 margins. Apparently 

 throughout our range. (Nat. from Eu.) 



C. MORALE, L. Resembles the preceding, but less erect, loosely branched 

 (1-2 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. From N. Eng. to Mich, and 

 Mo. (Adv. from Eu.) 



3. C. h^bridum, L. (MAPLE-LEAVED GOOSEFOOT.) Bright green 

 throughout; stem widely much branched (2-4 high); leaves thin (2-6' 

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

 the angles extending into a few large and pointed teeth ; racemes diffusely and 

 loosely panicled, leafless ; calyx not fully covering the fruit, its lobes keeled. 

 Indigenous from western N. Y. and Ky., westward across the continent ; 

 introduced eastward. 



2. Annual or perennial herbs, somewhat mealy, not glandular-pubescent ; 

 fruiting calyx dry; seed large, subglobose, vertical, exserted ; embryo a 

 complete ring. 



C. GLAticuM, L. (OAK-LEAVED GOOSEFOOT.) Low (5-12' high), spread- 

 ing, glaucous-mealy; leaves sinuately pinnatijid-toothed , oblong, obtuse, pale 

 green above; clusters in axillary spikes, small; seed sharp-edged. Through- 

 out our range and westward. (Nat. from Eu.) 



C. BONUS-HENR!CUS, L. (GOOD-KING-HENRY.) Stout, erect (1 -2 high), 

 mostly simple; leaves broadly triangular-hastate (2-3' long), obtuse or acute, 

 subsinuate or entire ; flowers somewhat densely paniculately spiked ; seed with 

 obtuse edges. (Blitum Bonus-Henricus, Reichenb.) Sparingly introduced. 

 (Adv. from Eu.) 



3. Annual , glabrous ; calyx more or less fleshy in fruit and often colored, en- 

 closing the utricle ; seed mostly vertical ; embryo a complete ring ; flowers 

 in crowded clusters, axillary or in spikes. 



4. C. rubrum, L. (COAST BLITE.) Stem angled, much branched; 

 leaves thickish, triangular-lanceolate, tapering below into a wedge-shaped 

 base and above into a slender point, sparingly and coarsely toothed, the upper 

 linear-lanceolate ; clusters scattered in axillary leafy spikes ; calyx-lobes 2-4, 

 rather fleshy ; stamens 1 - 2 ; seed shining, the margin acute. (Blitum mariti- 

 mum, Nutt.) Sea-coast of Northern States, and in saline places to Minn. (Eu.) 



5. C. capitatum, Watson. (STRAWBERRY BLITE.) Stem ascending, 

 branching ; leaves triangular and somewhat halberd-shaped, sinuate-toothed ; 



