NYCTAGINACEAE. 



Vol. II. 



3. AUionia hirsuta Pursh. Hairy Umbrella- 

 wort. P"ig. 1728. 



Allionia hirsuta Pursh. FI. Am. Sept. 728. 1814. 

 0.rybaphus hirsulus Choisy in DC. Prodr. 13 : Part 2, 



433. 1849. 

 Calyinenia pilosa Nutt. Gen. I: 26. 1818. 

 Allionia pilosa Rydb. Bull. Torr. Club 29; 690. 1902. 



Stem slender, l-3 tall, erect, angled and striate, 

 glandular-pubescent and pilose, especially at the 

 nodes, occasionally glabrate toward the base. Leaves 

 lanceolate or linear-lanceolate, obtuse at the apex, 

 sessile or the lowest sometimes short-petioled, 

 pubescent, i'-t,' long ; branches and petioles very 

 pubescent ; inflorescence usually contracted ; stamens 

 often 5 ; fruit narrowly obovoid, the ribs obtuse, 

 pubescent, sometimes with low intermediate ribs in 

 the furrows. 



In dry soil, Illinois to Saskatchewan, Wisconsin, Okla- 

 homa and New Mexico. July-Aug. 



4. Allionia nyctaginea ^lichx. Heart-leaved 

 Umbrella-wort. Fig. 1729. 



Allionia nyctaginea Michx. Fl. Bor. Am. i: 100. 1803. 

 Oxybaphus nyctagineus Sweet, Hort. Brit. 429. 1830. 

 Allionia nyctaginea ovata Morong, Mem. Torr. Club 5: 146. 



1894. 

 Allionia ovata Pursh, Fl. Am. Sept. 97. 1814. 



Stem angled, often 4-sided below, rather slender, 

 glabrous or but slightly pubescent, i-3 tall. Leaves 

 broadly ovate to oblong, 2'-^' long, l'-3' wide, acute 

 at the apex, cordate, rounded, truncate or narrowed 

 at the base, ail petioled except the small bract-like 

 uppermost ones, glabrous or nearly so; peduncles and 

 pedicels commonly pubescent; pedicels 6" long or 

 less ; involucre shorter than the flowers ; perianth red ; 

 stamens 3-5, exserted ; style exserted ; fruit oblong or 

 narrowly obovoid, very pubescent. 



In dry soil, Illinois to Manitoba, Louisiana, Texas and 

 Colorado. Adventive further east. May-Aug. 



Allionia comata Small, of Texas, Arizona and New- 

 Mexico, differs in being viscid-hirsute; it is reported from 

 Nebraska, perhaps erroneously. 



5. Allionia Carletoni Standley. Carleton's 

 Umbrella- wort. Fig. 1730. 



Allionia Carletoni Standley, Contr. U. S. Nat. Mus. 

 12: 355- 1909. 



Stem stout, simple or branched, softly pubes- 

 cent to the base, about 3 high. Leaves ovate to 

 lanceolate, thick, acutish at the apex, narrowed 

 or rounded at the base, 2-3' long, li' wide or 

 less, puberulent on both sides, short-petioled or 

 almost sessile ; inflorescence paniculate ; invo- 

 lucres about 8" broad, softly pubescent, their 

 lobes obtuse, ciliolate, their stalks 4"-$" long; 

 fruit oblong, narrowed to both ends, glabrous, 

 2*" long, prominently ribbed. 



Kansas and Oklahoma. June-July. 



