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74 PROCEEDINGS OF THE AMERICAN ACADEMY. 
capsule 16 to 18 mm. long, prominently nerved. — Mexico. State of 
San Luis Potosi: near Tancanhuitz, 2 May, 1898, £. W. Nelson, 
no. 4393 (hb. U. S. Nat. Mus., and hb. Gr.). 
Hymenocallis graminifolia. Roots fleshy-fibrous: bulbs ovate- 
rotund, about 3 em. high and nearly or quite as broad, covered with 
dark-brown scales; leaves lorate, 1.5 to 2 dm. long, 5 to 7 mm. broad, 
obtuse, entire, thin or submembranous: peduncle 1 to 1.5 dm. long, 
strongly 2-edged, especially above: flowers few (1 to 4), sessile: spathe- 
valves lance-attenuate, scarious: perianth-tube about 4 cm. long, green- 
ish ; segments lorate, narrowly lanceolate, slightly exceeding the tube: 
staminal-cup broadly funnel-shaped, about 3 cm. high; free portion of 
filament nearly or quite 2 cm, long: anthers versatile, 14 mm. long : 
style slender, greenish; stigma overtopping the anthers: cells of the 
ovary each containing 2 ovules. — Mexico. State of Morelos: valley 
near Yantepec, altitude 1230 m., 6 July, 1901, C. G. Pringle, no. 8532 
(hb. Gr.). 
In habit this species approaches H. humilis, Watson, and H. galves- 
tonensis, Baker, but differs materially in the size of the staminal-tube. 
Hymenocallis Pringlei. Bulbs ovate-rotund, about 4 cm. long, 
equally broad, covered with dark-brown scales, which are continuous 
over the cylindrical 4 cm. long, and 1.8 cm. thick neck : leaves lanceo- 
late, 1.2 dm. long, 1 to 2.5 cm. broad, narrowed at both ends, obtusish, 
entire, glabrous on both surfaces: peduncle 2 to 2.5 dm. long: spathe- 
valves lanceolate, attenuate, 4 to 5 cm. long, 12 mm. broad at the base, 
thin and scarious: flowers 4 to 6: perianth-tube 3.5 cm. long; seg 
ments somewhat exceeding the tube, narrow, 3 to 4 mm. broad : 
staminal-cup rather narrowly funnelform, 1.8 to 2 cm. high; free 
portion of filament about equalling the tube: style slender, greenish 5 
stigma slightly overtopping the anthers: ovary sessile, bearing tw 
ovules in each cell. — Mexico. State of Hidalgo: hillsides near Tula, 
altitude 1100 m., 20 July, 1896, C. G. Pringle, no. 6371 (hb. Gr.) 
Sisyrinchium bracteatum, Roots tuberous, fascicled: scapes 
1 to 2 dm. high, simple below, branched above, erect or very slightly 
flexuous, hirsutish-pubescent to nearly glabrous: leaves linear-attenuate, 
0.5 to 1.5 dm. in length: inflorescence branched, bearing several short 
pedunculate spathes ; peduncles mostly less than 1 cm. (rarely 1.5 cm.) 
long; bracts of the inflorescence foliaceous, 6 cm. or less in length, 
ciliate: spathe of two slightly unequal bracts, 13 to 16 mm. in length, 
rather strongly nerved, glabrous, the inner bract usually somewhat ex 
ceeding the outer: flowers of the spathe 2 to 4: perianth yellow; Ova"Y 
