64 MISSOURI BOTANICAL GARDEN. 



Y. stricta Baker, Gard. Chron. 1870 : 923. Hemsley, Garden, 

 g . 132. As to herbarium citations, in part. 



Y. angustifolia stricta Baker, Journ. Linn. Soc. Bot. 18:227. As to 

 herbarium citations, in part. 



T. glauca stricta Trelease, Kept. Mo. Bot. Gard. 4 : 206. pi. 22. 

 Coulter, Contr. U. S. Natl. Herb. 2 : 437. 



Y. recuroifolia ? Nutt. Trans. Amer. Philos. Soc. 5: 156. 

 Aspect and foliage of Y. tenuistyla. Inflorescence about 1 m. high, 

 racemose or very rarely with a few branches, glabrous. Flowers with 

 mostly greenish-white broad and obtuse segments : style green, usually 

 very tumid below. Capsule little flaring, smooth: seeds dull, 7 to 

 8 X 10 mm - Plates 30.31. 83, f. 7. 



From about Catoosa, I. T. (Bush, 1278) and Little 

 Rock, Ark. (Engelmann, May 1837) to the vicinity of San 

 Antonio, Tex. Plate 88, f. 2. 



The specific name Arkansana, here used, is applied in 

 deference to the prevalent American practice in nomencla- 

 ture, Engelmann's varietal name mollis (1873) having been 

 similarly used under Y. gloriosa by Carriere, in 1860. 



33. Inflorescence amply panicled on a long scape. Foliage of the 

 preceding or wider. 



Y. Liouisianensis Trelease. 



Y. filamentosa Riddell, N. O. Med. & Surg. Journ. 8 :763. Baflnes- 

 que,Fl. Ludovic. 18. Gray, Manual. [6 ed.]. 524. Britton, Man- 

 ual. 269. As to the Louisiana citation. 



Y. stricta, Y. stricta elatior, and Y. stricta intermedia Carrifcre, Eev. 

 Hort. 1859 : 390, 466. /. 101-2. 



Of the aspect of the preceding, or, when the inner leaves are dilated, 

 of Y. filamentosa media. The flaccid green leaves 10 to exceptionally 

 40 mm. wide, white bordered sparingly flliferous. Inflorescence an ex- 

 serted glabrous or mostly pubescent panicle. Petals broad to attenuate. 

 Style variously tumid aiid deep green, to pale and oblong. Capsule 

 stout and short, angular in developing, as in Y. flaccida: seeds 6 to 7 X 6 

 to 10 mm. Plates 32-34. 83, f. 8. 



Louisiana (Alexandria, Ball 558; Minden and Alden 

 Bridge, Trelease) to northern Texas (Jefferson, Tretease; 

 Dallas, Reverchon; Texarkana, Trelease) and southeastern 

 Indian Territory (Atoka, Butler; Standley, Ferriss; 

 Poteau, Trelease). Plate 92, f. 1. 



Apparently a western derivation of the same stock as the 



