120 LILIACE^E. (lily FAMILY.) 



18. TRILLIUM, L. Three-leaved Nightshade. 

 Flowers white to purple; outer segments green, inner petaloid. Anthers adnato 

 introrse. Stigmas linear, sessile. Stem bearing at the top a single whorl of 3 broad 

 netted-veined leaves. 



1. T. sessile, L. var. Calif ornicum, Wat. The sessile leaves broadly rhombic- 

 ovate, 3 to 6 inches long; flower sessile, petals oblanceolate to rhombic-ovate, 1 to 4 

 inches long, purple or rose-color or white. 



2. T. ovatum, Pursh. (Wake E,obin.) Leaves similar to the last, smaller; iiower 

 on a pedicel, white, turning rose-color. 



19. VERATRUM, Tourn. False Helebore. 

 Perianth slightly adherent to tho ovary. Anthers cordate or reniform, peltate after 

 opening. Capsule membranous, 3-beaked. Stems stout and leafj' from thick rootstocks. 



1. V. Californicum, Durand. Stem several feet high; lower leaves broad-ellijrtical, 

 upper leaves lanceolate; bracts usually exceeding the pedicels; perianth-segments broadly 

 oblanceolate, whitish with greener base, often denticulate, 3 to 8 lines long; capsule an 

 inch long. — Moist places. 



2. V. finibriatum, Gr. Leaves narrowed at base, 6 to IS inches long, 2 to G inches 

 wide, acute or acuminate; perianth-segments rhombic-ovate 3 to 5 lines long: capsule 

 4 lines long. — Swamps. 



20. ZYGADENUS, Michx. 

 Flowers white or greenish, erect in jianiculate or simple racemes. Perianth-segments 

 oblong-lanceolate to ovate, mostly glandular and somewhat narrowed at base. 



1. Z. Fremontii, Torr. Stem 6 inches to 3 ft. high; leaves glaucous, an inch broad, 

 or less; bracts mostly green; perianth 3 to 7 lines long, gland irregular and notched on 

 its upper margin. Flowers j^erfect. 



2. Z. venenosus, Wat. Stem slender, 6 inches to 2 ft. high; leaves rarely over 2 

 or 3 lines broad, scabrous; raceme simple, rarely compound, short, with narrow scarious 

 bracts; perianth-segments 2 or 3 lines long. Flowers polygamous, 



21. XEROPHYLLUM, Michx. 



Flowers white, in a sub-pyramidal many-flowered raceme. Styles reflexed or recoiled, 

 stigmatic do\vTi the inner side. Caulinc leaves numerojis, setaceous. 



1. X. tenax, Nutt. Stem 2 to 5 ft. high; leaves about 2 lines broad, often 2 or 3 

 ft. long; raceme becoming a foot or more long; perianth-segments oblong, 4 or 5 lines 

 long, scarcely equaling the stamens. 



LEtTCOCRINUM MONTANTTM, Nutt., is an acaiilescent plant which produces 4 to 8 fragrant white 

 flowers on short pedicels arising from a Bubterraueau stem ; the slender tube of the saivur-form i^eriaijtli 

 au inch or two long. — Sandy valleys. 



Order AEACEiE is represented by SYMI LOCARPUS KAMTSCHATICUS Bong. (Skunk Cabbage) i\. 

 marBh plant with large erect leaves, the llesby spadix becoming aa oblong-ovoid fruit two or threo 

 inches in length. 



