108 



longitudinally, cross section oval (Plate A, Fig. 7); longitudinal section oval 

 Plate D, Fjg. 7); size, I5 mm. x | mm.; hilum at centre of seed. 



i< 2. Flowers various; stamens 4; seeds more or less anther shape in cross 

 section. 



•■Corolla not closed over fruit; leaves lanceolate to linear. 



tLeaves lanceolate, acute; scape grooved, angled, slightly hairy ; seeds yel- 

 low, with smooth surface. 



8. P. lanceolata L.— 50 mm. to 275 mm. high; leaves lanceolate, acute, 

 tapering gradually into margined petioles, live or seven-nerved, margins entire or 

 slightly denticulate, si)aringly to densely hairy; spike densely flowered, capitate 

 at first, in age cylindrical, 12^ mm. to 62^ mm. long; scape grooved, slightly 

 hairy, 225 mm. to 600 mm. long; sepals acuminate, scarious (Plate 7); capsule 

 short, ovoid, circumscissile below the middle, two-seeded, ripe seeds light yellow, 

 having a longitudinal line through the centre lighter than the margins, surface 

 smooth, cross section anther shape (Plate B, Fig. 1); longitudinal section oval 

 (Plate E, Fig. 1); size, 5 mm. x If mm.; hilum at centre of seed. 



Dry fields, waste places and along the shores of lakes. (Introduced.) 

 Specimens examined: Providence, Rhode Island (J. F. Collins, July 15, 

 1892, National Herbarium) ; Kootinai County, Idaho (Alton Collection, Septem- 

 ber, 1887, Herbarium of the University of Minnesota) ; North Carolina (G. R. 

 Vasey, 1878, National Herbarium); Virginia (C. Wright, 1853, National Her- 

 barium); Central California (Dr. Palmer, 1876, National Herbarium); Jeflferson 

 County, Indiana (C. R. Barnes, May 20, 1876, Herbarium of Purdue University) ; 

 Pittsford, Vermont (H. L. Osborn, July 2, 1880, Herbarium of Purdue Uni- 

 versity); Mishawaka, Indiana (E. B. Uline, July, 1891, Herbarium of J. M. 

 Coulter); Arizona (Palmer, 1876, 308, Herbarium of J. M. Coulter); Charlotte, 

 Vermont (June 10, 1879, Herbarium of J. M. Coulter); Hope, Idaho (Sandberg, 

 July, 1887, 113, Herbarium of J. M. Coulter). 



tt Leaves linear, acute or obtuse; scape cylindrical, not grooved, densely 

 hairy; seeds dark brown, surface minutely pitted. 



9. P. Patagonica Jacq. — 75 mm. to 225 mm. high; leaves glabrate or silky 

 lanate, linear, acutely or obtusely pointed, three or five nerved, margins entire ; 

 spike 25 mm. to 75 mm. long; den'jely flowered; scape cylindrical, densely hairy, 

 100 mm. to 300 mm. long; sepals very obtuse, villous; corolla with broad cordate 

 or ovate lobes (Plate 8) ; capsule short, ovoid, circumscissile at the middle, slightly 

 longer than the calyx, 2-seeded; ripe seeds dark brown, surface dull, covered with 

 minute pits arranged in longitudinal lines; seeds have a transverse line on the 



