194 Karl M. Wiegand and Arthur J. Eames 



e. Leaves green beneath, 5-12 cm. long, triangular-hastate and acute, almost 

 entire. 5. C. Boniis-Henricus 



e. Leaves white beneath, 1-4 cm. long, oblong, coarsely few-toothed. 



6. C. glaucutn 

 b. Seeds all horizontal. 

 c. Sepals thin, not keeled, somewhat open in fruit; mature glomerules 1.5-3 mm. 

 in diam. ; leaves and flowers rarely slightly mealy. 

 d. Panicles very loose and open, nearly naked; seeds 1.5 mm. in diam., with 



sharp edges ; leaves large, with a few large teeth. 7. C. hybridum 

 d. Panicles narrow, racemose, leafy; seeds 1-1.1 mm. in diam., with obtuse 

 edges ; leaves smaller and more oblong, coarsely toothed. 



8. C. urbicum 

 c. Sepals thick, more or less keeled, closed in fruit; mature glomerules 3-7 mm. 

 in diam. ; leaves and flowers mealy. 

 d. Seed 1.5-1.7 (2) mm. in diam.; sepals sharply carinate; leaves ovate, 



coarsely few-toothed, yellow-green or dark green. 9. C. paganum 

 d. Seed 1.2 mm. in diam., more lustrous ; sepals thick, but scarcely carinate in 

 life, somewhat so when dry; leaves ovate or lanceolate, few-toothed, 

 glaucous green. 10. C. album 



1. C. AMBROSIOIDES L. MEXICAN TEA. 



Waste soil ; rare. Aug. 20-Sept. 



Along -the lighthouse road, Ithaca, 1903 (K. M. W.), 1921 {S. H. Burnham & 

 C. L. Wilson). 



Naturalized from tropical Am. throughout the greater part of the U. S. 



2. C. Botrys L. Jerusalem Oak. Feather Geranium. 



A weed of garbage dumps and waste gravelly soils ; occasional. July-Oct. 



Elmwood Ave., Dryden Road, railroad yards (D. !), and garbage dumps along 

 the lighthouse road, Ithaca; Renwick; Kidders Ferry (D.) ; Sheldrake Point (D.) ; 

 Union Springs (D.) ; Lockwood Flats. (/. /. Thomas). 



N. S. to Minn, and Wash., southw. to Fla., Ky., Mex., and Calif. Naturalized 

 from Eurasia. 



3. C. capitatum (L.) Asch. {Blitum capitatnm of Cayuga Fl.) Strawberry Blite. 

 Recently cleared woodlands and thickets, on gravelly, upland, more or less cal- 

 careous, soils ; rare. July 20-Aug. 



Ridge near McLean Bogs (L. H. Mac Daniels) ; e. of Pony Hollow (D.) ; Free- 

 ville, near bog (D.) ; near Ludlowville (H. B. Lord) ; Ledyard, 1827 (/. /. Thomas). 



E. Que. to Alaska, southw. to n. N. J., Pa., 111., Minn., and in the Rocky Mts. to 

 Colo. ; rare or absent on the Atlantic Coastal Plain. Found also in Eu. 



4. C. rubrum L. Coast Blite. Red Goosefoot. 

 Low brackish soils ; rare. Aug.-Sept. 



Hibiscus Point, 1922 {M. L. Fernald, A. J. E., & K. M. W.) ; meadows n. e. of 

 Montezuma village {DA). 

 In saline places, Newf. to N. J., and inland across the continent. 



5. C. Bonus-Henricus L. Good-King-Henry. 



A weed of yards, rich garden soils, and roadsides ; rare. Aug. 

 Oneida Place, Ithaca, 1916. 



N. S. to Ont., southw. to Mass. and s. N. Y., often escaping locally from cultiva- 

 tion, where it is grown as a potherb. Naturalized from Eu. 



6. C. glaucum L. Oak-leaved Goosefoot. 



A weed of sandy or gravelly waste places, mostly in neutral soils ; scarce. June 20- 

 Aug. 



