OF ARTS AND SCIENCES. 279 



few-flowered : bracts ovate-lanceolate, usually purplish : perianth 

 adnate at base ; segments broad, greenish, 4 or 5 lines long, the inner 

 abruptly contracted to a broad claw ; gland obcordate : styles about 2 

 lines long or more : seeds oblong, angular, not margined, 2 lines long. 

 — Helonias glaberrima, Ker, Bot. Mag. t. 1680. Z. glaucus, Nutt. ; 

 Lindl. Bot. Reg. 24, t. 67. Z. chloranthus, Richards. Z. commutatus, 

 Schult. Anticlea glauca, Kunth. From Canada (New Brunswick) 

 and Illinois to Oregon and Behring Straits ; southward in the moun- 

 tains to New Mexico and Nevada. 



3. Z. Fremontii, Torr. Very similar, but less glaucous : leaves 

 an inch broad or less : bracts mostly green : perianth free from the 

 ovary, 3 to 7 lines long ; gland irregular and notched on its upper 

 margin: styles short (about 1 line long): capsule longer (6 to 12 

 lines): seeds shorter. — Pacif. R. Rep. 7. 20 (as Z. Douglasii). 

 Anticlea Fremontii, Torr. in same, 4. 144. California (Coast Ranges, 

 San Diego to Humboldt County). 



4. Z. Nuttallii, Gray. Stem stout, 2 feet high: leaves 3 to 

 8 lines broad : racemes simple or rarely panicled, rather densely 

 flowered, with narrow membranous bracts : perianth free from the 

 ovary ; segments 3 to 5 lines long, not unguiculate, with an ill-defined 

 gland at base : stamens free : capsule half an inch long : seeds large 

 (3 lines long), usually flattened. — Manual, 525. Amianthium 

 Nuttallii, Gray, Rev. Melanth. 123, excl. var. f$. Amiantanthus 

 Nuttallii, Kunth. Texas to Colorado. 



-t- -i- Flowers smaller, polygamous. 



5. Z. venenosus. Stem slender, \ to 2 feet high : leaves rarely 

 over 2 or 3 lines broad, scabrous, the cauline not sheathing : raceme 

 simple, short, with narrow scarious bracts : perianth free from the 

 ovary ; segments triangular-ovate to elliptical, obtuse or rarely acutish, 



2 or 3 lines long, all abruptly contracted to a short glandular claw, 

 the blade rounded or subcordate at base ; gland extending slightly 

 above the claw with a well-defined irregular margin : stamens some- 

 what adnate to the claw : pedicels suberect in fruit : capsule 4 to 6 

 lines long: seeds \\ to 1\ lines long. — California (Monterey and 

 Mariposa Counties) to British Columbia and east to Utah and Idaho. 

 Bulb poisonous. The Coast Range form is usually stouter, with a 

 larger occasionally compound raceme. Hitherto referred to the last 

 species. 



6. Z. paniculatus, Watson. Very similar : usually stout : leaves 



3 to 8 lines broad, usually all sheathing : raceme compound : perianth- 



