110 CHENOPODIACEAE. 



2. C. lanceolatum Muhl. Plants slender, 5-20 dm. tall, bright-green, slightly 

 mealy: leaf -blades lanceolate to linear-lanceolate, or ovate on the lower part of 

 the stem, 2-5 cm. long, shallowly toothed or entire: inflorescence more open 

 than in C. album, and mature flower-clusters somewhat smaller: seeds slightly 

 over 1 mm. wide. — Bather common, in cultivated grounds and waste places. 



— Sum. and fall. 



3. C. hybridum L. Plants bright-green, 5-13 dm. tall: leaf -blades ovate to 

 ovate-hastate, 5-16 cm. long, sinuately 3-U-toothed : inflorescence rather lax, 

 the flower-clusters contiguous or ultimately separate: seeds fully 1.5 mm. wide. 



— S. In woods, on island at Peach Bottom. — Schists. — Sum. — Maple- 

 leaved GOOSEFOOT. 



4. C. murale L. Plants deep-green, somewhat mealy, 1-6 dm. tall: leaf -blades 

 rhombic-ovate, 2-8 cm. long, coarsely, sharply and irregularly toothed: panicles 

 terminal and lateral, the small flower-clusters numerous and close: seeds 

 barely 1.5 mm. wide. — M. S. Rather common, in waste places. Nat. of Eu. 



— Sum. 



5. C. Boscianum Moq. Plants light-green, often minutely mealy when young, 

 3-9 dm. tall: leaf -blades ovate, oblong-ovate, or lanceolate, 1-4 cm. long, thin, 

 the lower ones often sinuate: panicle-branches very slender, spreading, the 

 flower-clusters scattered, relatively small: seeds 1.5 mm. wide. — S. Eather 

 common,' in woods and thickets. — Schists. — Sum. 



6. C. glaucum L. Plants mealy-glaucous, 0.5-3 dm. tall: leaf -blades spatulate 

 to oblong, broadly linear or ovate in outline, mostly 1-5 cm. long, sinuate- 

 dentate, green or yellow-green above, whitish beneath: inflorescence compact, 

 the flower-clusters at first inconspicuous in the leaf -axils, ultimately elongate 

 and more conspicuous : seeds less than 1 mm. wide. — Eather rare, in waste 

 places and on roadsides. Nat. of Eu. — Sum. — Oak-leaved goosefoot, 



2. AMBRINA Spach. Aromatic glandular herbs. Leaves alternate: 

 blades mainly toothed, pinnatifid or pinnately lobed, not mealy. Sepals flat or 

 concave. Anther-sacs commonly contiguous. Cyvary often elongate. — Sum. 



Flowers not glomerate : leaf -blades pinnately lobed : calyx glandular-pubescent. 



1. A. Botrys. 

 Flowers glomerate : leaf -blades repand-toothed or entire : calyx 



glabrous. 2. A. ambrosioides. 



1. A. Botrys (L.) Moq. Stem 1-6 dm. tall, the branches erect or spreading: 

 leaf -blades oblong to ovate, 1-5 cm. long, the lobes entire or toothed: panicle- 

 branches cymose : utricle partially enclosed : seeds less than 1 mm. wide. — 

 Susquehanna valley. Frequent, on the river shore. Nat. of Eu. — Jerusalem- 

 oak. Feather-geranium. 



2. A. ambrosioides (L.) Spach. Stem 5-8 dm. tall, the branches sometimes 

 decumbent : leaf -blades oblong to oblong-lanceolate or ovate-lanceolate, those 

 of the stem-leaves 3-15 cm. long, undulate to repand-dentate: panicle-branches 

 spike-like : utricle wholly enclosed : seeds 0.7-0.8 mm. wide. — Common, ic 

 waste places. Nat. of trop. Am. — Mexican-tea. Wormseed. 



3. ATKIPLEX [Tourn.] L. Scaly herbs or shrubs. Leaves alternate or 

 sometimes opposite: blades often angulate or toothed. Flowers monoecious or 

 dioecious, the staminate bractless, the pistillate bracted. Calyx herbaceous. 

 Utricle wholly or partially surrounded by the crested, tubercled, or winged 

 accrescent bracts. 



1. A. hastata L. Plants light-green or purplish, the stems 3-8 dm. long: 

 leaf -blades triangular-hastate to hastate-lanceolate, 2-8 cm. long: mature 

 bracts ovate to deltoid, 4-5 mm. long, with toothed edges and spiny faces. — M. 

 Occasional, in waste places. Nat. of the coastal region. — Sum. — Orache. 



