PLANTS COLLECTED BY DR. GAMBEL. 181 



margin, pale brown. Leaves rather narrow, and rough, as usual ; two to three inches 



long, narrowed below, about half an inch wide. 



Hab. Sandy hills along the borders of the Rio del Norte. Santa Fe, (Mexico.) 



Flowering iu August. 



NICOTIANA. 



N. *CAUDATA. Annual ; leaves lanceolate, sessile, acuminated with very long caudated points ; flowers 

 conglomerated in a terminal panicle upon short peduncles ; segments of the calyx and corolla much 

 acuminated. 



With a very extraordinary character, still closely allied to N. tahacum. The lower 

 lanceolate leaves are not less than eighteen inches long, with slender acuminated 

 points in addition, of five or six inches in length. Segments of the calyx pubescent, 

 and viscid, lanceolate, and much acuminated. Corolla pale red, with a long, slender, 

 viscidly pubescent tube, more than an inch in length. 



Hab. Near Monterey, Upper California. 



SAMOLUS. 



S. FLORiBUNDUs, (Kuuth.) Santa Barbara. 



SIEVERSIA. 



S. PARADOXA. Don. Lin. Trans, v. 14, t. 22. f. 7 — 10. Fallugia, (Endlicher.) 

 Gen. No. 6385. 



A common straggling bush, four or five feet high, with very showy racemes of 

 bright yellow flowers. Dr. Gambel states that the branches are collected by the 

 inhabitants and tied together for the purpose of making brooms. Flowers in July 

 and August. Not sufficiently distinguishable ixora. Sieversia, dSi.^ ought to form a 

 mere division in that genus. 



Hab. Santa Fe, New Mexico. 



ERIODYCTION. 



E. *ANGU3TiF0LiuM. Stem and younger leaves glutinous ; leaves long, linear, entire, revolute on the 

 margin ; beneath canescent and reticulated ; flowers small, in paniculate cymes ; sepals linear, 

 somewhat hirsute. 



Allied to E. glutinosum, but with much narrower leaves. Flowers (apparently 

 small,) disposed in a panicle near a foot in length ; the branches terminating in bifid 

 or trifid conjugate spikes or cymes. Leaves linear, crowded, three or four inches 

 long, entire, one to two lines wide; when young very glutinous above. Calyx 

 small. Capsules small, ovate, containing very few seeds. 



Hab. On the Sierra of Upper California ; not seen in flower. 



HUMULUS. 



H. *AMERicANus. Leaves three to five-lobed, the upper sometimes entire ; inner divisions lanceolate- 

 acuminate, denticulate along the apex ; scales of the cone ovate, acute, the lower ones acuminate. 



