BOTANY. 
13 
mucronate ; those of the branches shorter and more distant; all perfectly smooth. Stem and 
older branches whitish. We believe that this interesting plant has not been found before, since 
it was discovered in California by Coulter.—(Tab. YI.) 
T ess aria borealis, Torr. & Gray ; Gray PI. Fendl. p. 75 ; Torr. in Sitgr. Pep. p. 162, i. 5. 
On the Colorado, Gila, &c.; June. The stems of this plant are used by the Indians for making 
their arrows. 
Baccharis ccerulescens, DC. Prodr. 5, p. 402. On the Gila river, &c.; June. 
Baccharis Douglasii, PC.; Torr. & Gray, FI. 2 ,p. 259. San Bernardino ; March. 
Baccharis consanguinea, DC.; Torr. & Gray , FI. 2, p. 259. Near San Jose, and hanks of 
the Salinas ; November. Some of the specimens have mature fertile heads, which we had not 
seen before. The branches often hear gall-like excrescences, similar to those occurring on B. 
pilularis, to which this species is, perhaps, too nearly allied. 
Zinnia pumila, Gray, PI. Fendl. p. 81, ( adnot.) (t PI. Wright, 1, p. 105. Sauz valley ; 
August. A stout and much-branched form, 6 to 8 inches high. Another dwarf variety, with 
longer leaves and shorter rays than usual, was found on the Chiricahui mountains and on the 
B. Mimbres. 
Hymenoclea Salsola, Torr. in Smithson. Contrib. (PI. Fremont) p. 14, t. 8. San Felipe. This, 
I fear, is only a monstrous state of H. monogyra. 
Helianthus petiolaris, Nutt.; Torr. & Gray, 2, p. 309. On the Salinas river, and near 
Los Angelos. 
Ximenesia encelioides, Cavan.; Torr. & Gray, FI. 2, p. 359. Gila river, &c.; rather com¬ 
mon ; June. 
Heliomeris. —San Bernardino, San Gabriel, &c. ; February. 
Encelia Calieornica, Nutt, in Trans. Amer. Phil. Soc. (n. ser .) 7, p. 357. Santa Inez 
Mission ; December. 
Biddellia tagetina, Nutt. 1. c.; Torr. & Gray, FI. 2, p. 362. Burro and Chiricahui moun¬ 
tains ; August. 
Gaillardia pulchella, Foug.; Torr. & Gray, FI. 2, p. 366. Los Playas ; August. 
Chenactis tenuieolia, Nutt.; Torr. & Gray, FI. 2, p. 370. San Diego ; May. Much stouter 
than Nuttall’s original specimens, and more than two feet high. 
Hymenopappus flavescens, Gray, PI. Fendl. p. 97; & PI. Wright, 1, p. 121. Burro moun¬ 
tains ; August. 
Bahia confertiflora, DC.; Torr. & Gray, FI. 2, p. 374. Near San Diego, and on the 
Salinas river ; December, April. 
Burrielia tenerrima, DC.; Torr. & Gray, FI. 2, p. 385. On the Salinas river ; November, 
Actinella linearifolia, Torr. & Gray, FI. 2, p. 383. Gray, PI. Wright. 1 , p. 122, and 2. 
p. 96. Along the Gila river ; June. 
Layia elegans, Nutt.; Torr. & Gray, FI. 2, p. 394. Kikal Mungo, California; March. 
Layia glandulosa, Hook, and Am. Bot. Beechey, p. 358. Near Los Angelos ; March. 
Layia platyphylla, Gray, PI. Fendl. p. 103 (adnot.) Callichroa platyphylla, Fisch. & 
Mey.; Torr. & Gray, FI. 2, p. 395. Santa Clara to Los Angelos ; March. 
Hemizonia rudis, Benth. Bot. Sulphur, p. 31. San Jose valley; November. Fremont col¬ 
lected the same plant in California in his expedition of 1845-’47. The root is decidedly annual 
in Dr. Antisell’s specimens. 
Baileya multiradiata, Harv. & Gray, in Emory’s Rep. p. 144, t. 6, & in PI. Fendl. p. 
106, Gray, PI. Wright. 1 ,p. 123. Sauz valley; August. 
