liliacejE. 319 



1. C. ixioides (Ait. f.). Scape a foot high: leaves 2: filaments alter- 

 nately long and short, all bifurcate at the winged summit, the oblong 

 anther on a cusp in the middle between the forks.— From below San 

 Francisco northward, in the Coast Eange. May. 



2. C. lug-ens (Greene). Like the preceding in size and general 

 appearance, but the broad appendages of the filaments rounded, not forked, 

 at summit: perianth deep saffron-color within; exteriorly the entire tube, 

 and midoein of the segments, dark brown approaching black. --Vaca 

 Mountains; collected only by the author. May. 



18. TRITELEIA, Douglas. Vegetative organs as in Calliprora. 

 Flowers blue, or bluish. Perianth-tube funnelform or turbinate, not 

 inflated or angular or saccate though thin. Stamens 8, all antheriferous; 

 filaments coalesoent with the upper portion of the perianth-tube, reap- 

 pearing near the base in the form of thin but prominent crests; anthers 

 small, versatile. Ovary on a slender stipe. 



1. T. laxa, Benth. Scape 1—2 ft. high: umbel 10— 30- flowered: 

 perianth 1^4 in. long, funnelform, pale to deep violet, cleft nearly to the 

 middle: filaments free for a line's length above the insertion; anthers 

 ovate-lanceolate, 2-lobed at base, erect, though fixed near the middle: 

 stipe of ovary % in. long. — Very common in fields and on open hillsides. 

 May, June. 



2. T. pednncnlaris, Lindl. Scape 1 — 3 ft. high: umbel 15— 30-flow- 

 ered; pedicels very long, often 6 — 10 in. : perianth broad-funnelform, pale 

 rose-purple to nearly white, 1 in. long, cleft below the middle; segments 

 widely spreading; anthers oblong-linear, retuse at summit. — Wet banks 

 of streams and in springy places. June, July. 



19. HESPEROSCORDUM, Lindl. Sufficiently differentiated, as a 

 genus, from the preceding, by its rotate-campanulate perianth cleft to 

 the middle, the segments taking no angle of divergence of their own (not 

 spreading), and filaments deltoid-dilated and monadelphous below; the 

 anthers basifixed and erect. 



1. H. lacteum, Lindl. Scape slender, 1—2 ft. high; perianth 5 — 8 

 lines long and as broad, white, with green veins, or sometimes with a 

 tinge of lilac: stamens all alike: capsule short-stipitate. — Plentiful in 

 rather low rich soils. May, June. 



20. MUILLA, S. Wats. Somewhat succulent scape and semiterete 

 leaves from a coated corm. Umbel with several narrow scarious bracts. 

 Perianth-segments and stamens 6 each and distinct or nearly so, white 

 or greenish. Genus differing from all the foregoing umbellate-flowered 

 genera in that the pedicels are not jointed under the perianth, and from 

 Allium in that the plants are destitute of alliaceous properties. 



