68 Trans. Acad. Sci. of 8t. Louis. 



Sieglingia pilosa (Buckley) Nash, Britt. & Brown, 111. Fl. 3, append. 504. 



1898. 

 Tricuspis pilosa (Buckley) Heller, Cat. N. A. PL 28. 1900- 



Culms 6.25-30 cm. tall, tufted, the sterile shoots 1dm. tall 

 or less. Sheaths smooth, a tuft of hairs on each side of the 

 apex, much shorter than the internodes; leaves strict or 

 curved, thick, linear, obtuse, 1-nerved, the margins white, 

 serrulate, 3.75 cm. long or less, less than 2 mm. wide, folded, 

 at least when dry, pubescent with long hairs, especially be- 

 neath ; panicle almost raceme-like, long-exserted, 1.25-3.75 

 cm. long; spikelets 3-10, crowded, 8-12-flowered; lower 

 scales acuminate, 1-nerved ; flowering scales 6.-6.5 mm. long, 

 acuminate, 3-nerved, the midnerve generally excurrent as a 

 short tip, all the nerves pilose, the lateral at the top and 

 bottom, the midnerve below the middle. Dry prairies and 

 barrens ; common southwestward. April to October. Peren- 

 nial. 



Upper and Lower Sonoran areas. Kansas and Colorado to 

 Indian Territory, Oklahoma, Texas, New Mexico, Arizona 

 and Mexico. 



Type locality not ascertained. 



Specimens examinbd. — Kansas: Gove County, Hitchcock, 914, 1896; 

 Gray County, Hitchcock, 1897. — Colorado: Canon City, Shear, 982, 1896. — 

 Oklahoma: Gloss Mountains, Mark White, 165, 1899. — Texas: Dallas 

 County, Beverchon, 1112, 1900; same locality, Bush, 631, 1900; Kerrville, 

 Kerr County, Miller, 1637; Gillespie County, Jermy, 55; Santa Anna, Cole- 

 man County, and Chenate Mountains, Presidio County, Nealley, 817; San 

 Antonio, Bush, 331, 1901. — New Mexico: Lincoln County, Josephine 

 Skehan, 34, 1898; no locality given, Fendler, 738, 915, 1847. — Mexico: 

 Monterey, Trelease, 1900; Diaz, Pringle,8306, 1900. 



5. Triodia grandiflora Vasey, Contr. U. S. Nat. Herb. 



1:59. 1890. 



Sieglingia avenacea grandiflora (Vasey) Dewey, Contr. U. S. Nat. Herb. 



2: 538. 1894. 

 Sieglingia grandiflora (Vasey) Beal, Gr. N. A. 2 : 471. 1886. 

 Tricuspis grandiflora (Vasey) Heller, Cat. PI. N. A. 28, 1900. 



Culms 2-3 dm. tall ; leaves narrow, rigid, plane or condupli- 



cate, 5-10 cm. long, lower with the sheaths softly pubescent; 



panicle oblong, dense, 3-5 em. long, branches appressed; 



spikelets 6-8 flowered, 8-10 mm. long; lower scales unequal, 



