492 PROCEEDINGS OF THE AMERICAN ACADEMY. 
Palmer, no. 699). Differing from F. laxa, Vahl, in its paler smaller 
spikelets and smaller white and glossy achenes. 
F. Holwayana. Culms slender, 1 to 3 dm. high, much overtopping 
the pale green narrow (0.75 mm. wide) ciliate leaves: umbel simple, 
with 2 (rarely 1) to 4 ovoid-oblong spikelets 6 to 8 mm. long, 2.5 to 3.5 mm. 
thick, the middle (or rarely solitary) one sessile, the others on slender 
ascending rays 0.5 to 2 em. long; inyolucre of 2 or 8 ciliate leaves, the 
longest one usually much exceeding the rays: scales from orbicular 
to ovate, blunt, castaneous and shining, the green midrib in the outer 
somewhat prolonged into a short awn, in the others barely into a cusp: 
achene short-stipitate, pearly, broadly obovoid, subtruncate above, half 
as long as the scale, 1.25 mm. long, nearly as thick, with about 16 lon- 
gitudinal ribs, and many linear transverse markings; style flat, fimbriate, 
exserted. — Jasco, Chapala, Sept. 18, 1899 (Z. W. D. Holway, n 
3443). Closely related to F. pentastachya, Boeckeler, but differing 
its narrower spikelets and broader scales, and in the achenes which are 
smooth or with one or two tubercles at the very summit, not tuberculate- 
roughened throughout as in F’. pentastachya. ' 
F. obscura. Glaucous, loosely tufted from slender branching caudex: 
leaves flat, 2 or 3 mm. wide, the longest 1.5 dm. long, smooth, or the 
margins ciliolate-scabrous except at the acutish cartilaginous tip: culms 
compressed, with thin edges, 4 dm. or less high: umbel decompound, 
with 2 to 4 rays 2 or 3 cm. long and several shorter ones; involucre of 
2 leaves much shorter than the umbel; spikelets mostly pedicelled, of 
rarely 2 or 3 fascicled and sessile, lanceolate, acute, 5 to 8 mm. long, 1.5 
to 2 mm. thick: scales dark brown, ovate-oblong, strongly carinate and 
mucronate: style slender, terete, smooth, with 3 pubescent branches 5 
achenes trigonous with obtusish angles, obovoid, barely 1 mm. long; 
whitish, with extremely obscure longitudinal markings (seen only under 
strong magnification). — Duraneo, alkaline bottoms near Durango 
June, 1896 (dw. Palmer, no. 186): San Luts Porost, in the mou” 
tains, San Miguelito, 1876 (Schaffner, no. 558). Resembling f 
autumnalis, R. & §., but clearly differing in its caespitose perenn! 
habit, and its larger, paler, and duller achenes. i 
LYPHOSPERMA Patmert, Watson, Proc, Am. Acad. XViil. 1 
Mr. Pringle calls attention to the fact that this plant, which in nee 
appears like an introduced species, is identical with the Old Worl 
Asphodelus fistulosus, “L 
Cologania Deamii. Stems slender, 1.5 to 2 dm. long, from a slen- 
der creeping rootstock, ascending and branched, the tips flexuous but 
