п-к 
дө” 
— 
ce 
سے 
. not wholly accord. 
88 UNITED STATES AND MEXICAN BOUNDARY. 
HYMENOCLEA МОХОЗҮВА, Torr. & Gray, Pl. Fendl. p. 79, & Pl. Wright, l. c. Common on the 
frontier, from Eagle Pass, Texas, to Sonora. , 
ZINNIA TENUIFLORA, Jacq. Ic. Rar. 3, і. 590; Gray, Pl. Wright, 2, p. 86. Sonora and Chi- 
huahua; Thurber, Schott, etc. 
ZINNIA (DIPLOTHRIX) AcEROSA, Gray, Pl. Wright, 1, р. 106. Dry hills, from Eagle Springs, 
etc., to El Paso; Bigelow, etc. 
ZINNIA (DIPLOTHRIX) GRANDIFLORA, Nutt.; Gray, Pl. Wright, 1, р. 105. Sonora, Chihuahua, 
New Mexico, and W. Texas; gathered by all the collectors. 
ZINNIA (DIPLOTHRIX) PUMILA, Gray, Pl. Fendl. р. 81, & Pl. Wright, l. с. Sonora, lower Rio 
Grande, etc. Intermediate forms appear to connect this with the last. 
ZINNIA (HETEROGYNE) ANOMALA, Gray, l. c. t. 10, f. 2. Eagle Pass on the Rio Grande (Bige- 
low) to the San Pedro, Pecos, etc. 
HELIOPSIS PARVIFOLIA, Gray, Pl. Wright, 2, p. 86. Between Babocomori and Santa Cruz, 
Sonora; Wright, Thurber. Some of Mr. Thurber’s specimens have larger leaves than those of 
Wright. 
HELIOPSIS BUPHTHALMOIDES, Dunal, which is also H. canescens, H. B. K. Between San Ber- 
nardino and Janos, Chihuahua; Thurber. 
Harea Texana, Gray, Pi. Fendl. p. 88, & РІ. Wright, l. c. Gravelly plains, western and 
southern Texas. 
LEPACHYS CoLUMNARIS, Torr. & Gray, РІ. 2, p. 215; & var. PULCHERRIMA. Western Texas to 
New Mexico. 
Lepacuys TAGETES, Gray, in Bot. Whippl. Rep. p. 103. L. columnaris, var.? Tagetes, Gray, 
Pl. Wright, 1. c. Western Texas to El Paso, etc. 
RUDBECKIA FULGIDA, Ait. Western Texas; Bigelow. 
ALDAMA UNISERIALIS, Gray, Pl. Lindh. 2, p. 228. Southern Texas ; Schott, etc. 
. HELIOMERIS MULTIFLORA, Nutt.; Gray, Pl. F'endl. р. 87; and var. nisprpa, Gray, Pl. Wright, 
2, p. 81. New Mexico, Sonora. 
HELIOMERIS TENUIFOLIA, Gray, 1. c. From the San Pedro, Western Texas to Sonora, 
Chihuahua, etc. 
了 LOURENSIA CERNUA, DC. Prodr. 5, р. 593. From the Pecos and Eagle Pass, on the Rio 
Grande, to the Mimbres, etc., “sometimes covering large tracts of ground in villages and 
Mesquite bottoms ; Schott. 
卫 NCELIA CALIFORNICA, Nutt. in Trans. Amer. Phil. Soc. 7, p. 357. San Diego, California ; 
Schott. 
ENCELIA CONSPERSA, Benth. Bot. Voy. Sulph. p. 26. Diluvial banks of the Colorado; February; 
Schott. This must be Bentham’s E. conspersa ; but the involucre is more pubescent than he 
describes, the rays glabrous, and the foliage retains much of the close cinereous pubescence. 
The heads, also, are quite small. It is probably the same as No. 308, of Coulter's Californian 
collection. 
EwcELIA NIVEA, Benth. l. c. Е. farinosa, Gray, in Emory Hep. p. 143. On the Gila; 
Emory, Parry, etc., and the Colorado of the West; Bigelow. This is the same as Coulter's 
No. 327, and must be Bentham's E. nivea, from Lower California, although the characters do 
