CHENOPODIACEAE 81 



6. C. murale L. Sowbane. Resembles the last but usually decum- 

 bent : leaves more sharply toothed : spikes not longer than the leaves — 

 Streets of Westport and Independence. Locally common. June-Sep- 

 tember. 



7. C. glaucum L. Spreading Pigweed. Glaucous-mealy, spread- 

 ing : leaves oblong, sinuate-toothed, strongly glaucous-mealy beneath : 

 flowers in small axillary spikes. — Sand-bars along the Missouri Eiver near 

 Courtney. Eare. June-October. 



8. C. hybiidum L. Maple-leaved Pigweed. 2°-8° high : leaves 

 large, thin; ovate, truncate or rounded at base, long-acuminate, with 1-4 

 deep teeth on each side : flowers in large diflfnse panicles. — Abundant in 

 woods and waste places throughout. July-October. 



9. C. Botrys L. Feather Geranium. Annual, 6''-24'' tall, glan- 

 dular-pubescent and viscid : leaves slender-petioled, oblong, sinuate- 

 pinnatifid : flowers small, in axillary, cymose, leafless panicles. — Streets 

 of Independence, and at Sheffield. Eare. June-September. 



10. C. ambrosioldes L. Mexican Tea. Nearly smooth, but 

 strongly-scented, 2°-4° high : leaves oblong-lanceolate, repand-dentate, 

 sbort-petioled : flowers in dense axillary and terminal leafy spikes. — 

 Common around dwellings. July-October. 



11. C. anthelminticum L. Wormseed. Resembles the last but 

 leaves more strongly toothed and spikes not leafy. — Around dwellings at 

 Courtney, Independence and near Atherton, July-October. 



2. CYCLOLOMA Moq. 



A diffusely branching annual with alternate, sinuate-toothed leaves. 

 Calyx 5-lobed, the lobes strongly keeled, surrounded by a continuous, 

 horizontal, soarious wing. 



1. C. atripllcifolium (Spreng.) Coult. Winged Pigweed. G'-S" 

 high : leaves somewhat arachnoid-pubescent. — Sandy places in the Mis- 

 souri Eiver bottoms. Rather common. July-October. 



3. MONOLEPIS Schrad. 



Low annuals with flowers in axillary sessile clusters. Sepall. Stamen 

 1. Styles 2. 



1. M. Nuttalliana (R. & S.) Greene. 3'-12' high, prostrate-spread- 

 ing : leaves lanceolate, 3-lobed, the middle lobe much the longest : flow- 

 ers sessile. — Sparingly adventized along the railroad near Pixley's Switch ; 

 ^Iso at Argentine, Kansas. April-September. 



4. ATRIPLBX L. 

 Flowers dioecious or monoecious, axillary or in spikes. Staminate 

 flowers with 3-5 sepals, 3-5 stamens, and no bracts. Pistillate flowers 

 consisting of a solitary pistil, enclosed in two foliaceous bracts. 



