NYCTAGINACEAE. 



Vol. II. 



3. Allionia hirsuta Pursh. Hairy Umbrella- 

 wort. Fig. 1728. 



Allionia hirsuta Pursh, Fl. Am. Sept. 728. 1814. 

 Oxybaphus hirsuhis Choisy in DC. Prodr. 13 ; Part 2, 



433- 1849. 

 Calymenia pilosa Nutt. Gen. i : 26. 1818. 

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



Stem slender, i°-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, 1-3' 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, 

 homa and New Mexico. July-Aug. 



Okla- 



4. Allionia nyctaginea Michx. 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. 



1S94. 

 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'-4' long, i'-3' wide, acute 

 at the apex, cordate, rounded, truncate or narrowed 

 at the base, all 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'-^' 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, 

 2i'' long, prominently ribbed. 



Kansas and Oklahoma. June-July. 



