102 UNITED STATES AND MEXICAN BOUNDARY. 
BAILEYA MULTIRADIATA, Harv. & Gray, 1. с.; Pl. Wright. l.c. Sandy places, with the same 
range as the foregoing, which may probably pass into it. : 
MATRICARIA DISCOIDEA, DC. Prodr. 6, p. 37; Torr. & Gray, Fl. 2, p. 413. А common weed 
in the streets of Monterey and elsewhere in California, appearing as if introduced ; Parry. 
ACHILLEA MILLEFOLIUM, Linn. Cobre, New Mexico; Bigelow, Wright. 
VARILLA Texana, Gray, Pl. Wright. 1, p. 123. Plains and grassy places near Eagle Pass on 
the Rio Grande; Bigelow, Parry, Thurber. | 
ARTEMISIA CALIFORNICA, Less. in; Linnea, 6, p. 523. San Diego and San Luis Rey, California, 
where it abounds exceedingly ; Parry, etc. | 
= ARTEMISIA DRACUNCULOIDES, Pursh; Gray, Pl. Wright. 1. c. Hills at the Cobre, New Mexico ; 
Wright, Bigelow. On the Pecos, Texas; Thurber. 
— —- Artemista CANADENSIS, Michz.; Torr. & Gray, Fl. 2, р. 417. With the last. 
ARTEMISIA FILIFOLIA, Torr.; Tu & Gray, Û. с.; Torr. in Hang Hep.t.12. Common in bottom 
land, from below El Paso to ГЭ Cobre, etc. 
-一 ARTEMISTA LUDOVICIANA, Nutt.; Torr. & Gray, l.c. 
including A. Douglasiana and А. Mexicana. 
— enc илла 
Very common, and in various forms ; 
GNAPHALIUM CALIFORNICUM, DC. 0. Prodr. 6, p. 224. San Diego, California; Thurber. | 
GNAPHALIUM LUTEO-ALBUM, Linn. Sandy low places, from the Nueces and Rio Grande, Texas 
to Sonora. f 
_—— GNAPHALIUM SPRENGELII, Hook. & Arn ; Gray, Pl. Wright. 1, р. 124, & 2, p. 99. Hills, etc., | 
from the Limpio, Cobre, etc., to Sonora and California. | 
„— GNAPHALIUM LEUCOCEPHALUM, Gray, РІ. Wright. 2, p. 99. Bed of mountain torrents, near 
Santa Cruz, Sonora; Wright, Thurber. 
GNAPHALIUM MICROCEPHALUM, Nutt.? Gray, Pl. Wright. l. c. Cobre, New Mexico; Wright. 
—7 GNAPHALIUM PALUSTRE, Nutt.; Torr. & Gray, 2, p. 427. California; Rev. Mr. Fitch, etc. 
On the Colorado of the West; Schott, 
ANTENNARIA DIOICA, Gerin. Cobre, New Mexico; Bigelow. 
Finago CALIFORNICA, Nutt.; Torr. & Gray,l.c. San Isabel, California; Thurber. On the 
Sacramento; Rev. Mr. Fitch. | 
Свосштом MULTICAULE, Hook, РІ. Bor.- Amer. 1, t. 118. On the upper Sacramento, California ; 
Dr. Stillman, 
ARNICA DISCOIDEA, Benth. Pl. Hartw. p. 319. Monterey, California, in woods and ravines ; 
May; Parry. A form with even the upper leaves all opposite or nearly so. 
_— BARTLETTIA scaposa, Gray, Pl. Thurber, p. 323. Ona prairie near Corralitas, Chihuahua ; 
August; Thurber. 
Рвлтнүвотив ANNUA, Gray, Pl. Wright. 2, p. 100, & Pl. Thurber, p. 323. Bulbostylis 
77 (Psathyrotes) annua, Nutt. РІ. Gambel. Tetradymia (Polydymia) ramosissima, Torr. in Emory, 
Rep. р. 145. Colorado desert, California ; Schott. Big-horn mountain, on the Gila; Thurber. 
“Flowers bright yellow. Foliage койд" 
一 一 了 PsaTHYROTES SCAPOSA, Gray, Pl. Wright. 2 р. 100, t. 13. Gravelly hills near El Paso, and 
Santa Maria, Chihuahua; Wright, Bigelow, Kioway crossing of the Rio Grande, near the Chisos 
mountains; Parry. 
HAPLÖESTHES GREGGI, Gray, Pl. Fendl. p. 109. Along the Rio Grande below El Paso; Parry; 
