67 



* ZIGADENUS glaucus. 

 Glaucous Zigadenus. 



HEXANDRIA TRIGYN1A. 



Nat. ord. Melanthace^e. 



ZIGADENUS, Michx. Perianthii foliola biglandulosa, sessilia. Flores 

 hermaphroditi. Filamenta libera. Antherce subuniloculares. 



Z. glaucus; bulbo tunicato, foliis caule brevioribus linearibus vix acutis, racemo 

 subsimplici, bracteis lanceolatis pedicellis brevioribus, perianthii foliolis 

 ovalibus obovatisve obtusis glandula obcordata instructis. A. Gray 

 Melanth. Am. sept, revis. in ann. Lye. hist. nat. Novebor. 4. 1 13. 



Zigadenus chlorantbus. Richardson in Frankl.journ. ed.2.p. 12. 



Z. glaucus. Nutt. injourn, acad. Philad. 7. 56. 



Z. commutatus. Rum. 8f Sch. syst. 7. 1559. 



Melanthium glaucum. Nutt. gen. 1. 232. 



Leimanthium ? glaucum. Rom. 8f Sch. I. c. 1551. 



The preceding synonymes of this plant are extracted from 

 a valuable paper on N. American Melanthaceae, by Dr. Asa 

 Gray. 



It appears that the species extends from Canada and 

 Kotzebue's Sound as far as Arkansa and Oregon. Dr. Gray 

 saw specimens collected on the high plains near .the rivers 

 Platte and Multnomah ; I possess others gathered near 

 Lake Superior by Dr. Torrey, and on the north-west coast 

 of North America by Douglas, who supposed the species to be 

 the Z. elegans of Pursh. It is reported to inhabit the sandy 

 banks of rivers and lakes. 



For the opportunity of obtaining a figure of it, I am 

 indebted to Messrs. Chandler and Sons of Vauxhall, who 

 exhibited it at one of the meetings of the Horticultural 



* From tevyvvu I join, and a^nv a gland, in allusion to the double glands 

 on the perianth. 



