OF ARTS AND SCIENCES. 229 
4 lines long, twice longer than the slender stamens and style: capsule 
very obscurely ridged toward the summit. — “ Abundant on the Blue 
Mountains,” Oregon. 
17. A. scitLorpes, Dougl. in herb. An equally obscure species. 
Perianth-segments oblong-lanceolate, obtuse, 3 lines long, a half 
longer than the stamens: ovary not at all crested. — “ Priest’s 
Rapids, Columbia River.” 
++ Ovary rather obscurely crested: scapes low (4 to 10 inches): perianth- 
segments (at least the inner ones) serrulate. 
18. A. AacumMINATUM, Hook. Outer bulb-coats with a distinct 
coarse quadrate to hexagonal reticulation: pedicels (12 to 30) 6 to 12 
lines long: flowers deep rose-color, 4 to 7 lines long; segments lance- 
olate, with acuminate recurved tips, rigid in fruit, a third longer than 
the stamens, the inner ones undulate-serrulate: filaments slightly 
dilated below. — Fl. Bor.-Am. 2. 184, t. 196; Watson, King’s Rep. 
5. 352, t. 37, f. 6. A. Murrayanum, Regel, Gartenfl. 23. 200, t. 770. 
From Washington Territory to Northern California, Nevada and 
Utah. <A. Hlwesii, Regel, Pl. Nov. fasc. 5. 50, is probably a form 
of this species with more obtuse perianth-segments. 
19. A. BoLANpDERI. Bulb or coated corm propagating by one or 
two very short lateral offshoots, the coats with a delicate close undu- 
late-serrate reticulation: pedicels 5 to 15: flowers rose-colored or 
pinkish, 4 or 5 lines long, the segments very narrowly acuminate, 
nearly straight, twice longer than the stamens and style, the inner 
ones strongly serrulate: filaments narrowly filiform, adnate to the 
middle. — Humboldt County, California (n. 6556, Bolander; n. 1011, 
Kellogg & Harford; Rattan). 
+++ Ovary distinctly 6-crested (obscurely so in n. 27, 28): perianth-seg- 
ments not serrulate, mostly rose-colored. 
++ Scapes often rather tall. 
20. A. sTELLATUM, Fraser. Outer bulb-coats reddish, with a very 
close linear longitudinal reticulation: scape 6 to 18 inches high: 
umbel few—many-flowered; peaicels 4 to 9 lines long: perianth-seg- 
ments 2 or 3 lines long, broad, acute: stamens and style exserted : 
capsule prominently crested. — Ker, Bot. Mag. t. 1576; Hook. FI. 
Bor.-Am. 2. 184, t. 194. From the Saskatchewan to Wyoming. 
21. A. SAnBOoRNII, Wood. Outer bulb-scales white, some with a 
very minute irregular reticulation: scape usually a foot or two high: 
spathe 4-valved: umbel usually densely many-flowered, the pedicels 
3 to 8 lines long: perianth-segments 2} or 3 lines long, ovate-lanceo- 
