184 UNITED STATES AND MEKICAN BOUNDARY. 
as Wright's No. 1738, and Berlandier’s No. 1346; the latter from San Luis Potosi. Gregg 
found it also at Cerros Bravos, Mexico. 
OBIONE OCCIDENTALIS, Moq. l. c. Near the Copper Mines and at Santa Barbara; also on the 
San Pedro; Bigelow. On the Pecos and in Chihuahua ; Thurber. El Paso; Wright. Remark- 
able for its large broadly 4-winged fruit. These wings are either entire or more or less deeply 
toothed ; rarely cut into narrow lobes. The bracts adhere nearly to the summit, while in O. 
canescens they are united only toward the base. 
OBIONE OCCIDENTALIS, var. ANGUSTIFOLIA: foliis angusto-linearibus vel lanceolato-linearibus. 
Valley of the Rio Grande, from El Paso to 40 miles below San Elceario; Bigelow, Wright. Onthe 
Gila; Thurber. (Хо. 1742, Wright.) Gregg found it in various places in Jeh Mexico, where 
it is called Chanuzo. It seems to be closely related to O. linifolia, Mog. Ле 
EUROTIA LANATA, Мод. Chenop. р. 81; Torr. & Gray m Bot. Pope’s Rep. p. 124. Diotis lanata; 
Pursh, Fl, 2, p. 602. Hills near the Copper Mines, New Mexico. 
CoRISPERMUM HYsSOPIFOLIUM, Linn.; Moq. 1. c. p. 141. Sandhills, Chihuahua; Thurber. Allu- 
vions of the Rio Grande ; Schott, Parry. 
ARTHROCNEMUM MACROSTACHYUM, А. Bunge in Linnea, 28, p. 573. Arthrocnemum fruticosum, 
7 macrostachyum ; Mog. Chenop. p. 111, £ in DC. 1. c. p. 151. Salt marshes between Co- 
manches and Leon Springs, November; Schott. Rio Pecos; Thurber. Santa Rosa, Cohahuila ; 
Bigelow. Plant 1-2 feet or more in height. (No. 1745, Wright.) According to Bunge (2. с.) 
Moquin and Fenzl have not distinguished, by reliable characters, Arthrocnemum from Sali- 
cornia. To the former genus he refers those species in which the seed is albuminous, and the 
embryo curved ; in the latter those which have exalbuminous seeds and a conduplicate embryo. 
ÑALICORNIA MUCRONATA, Lagasca Pl. Barill. ex Мод. Chenop. р. 115. Оп the beach at Brazos 
Santiago, May; Schott. This plant is shrabby and apparently as tall as the preceding species ; 
the specimen being only a branch, and more than а foot long. І am now inclined to regard it 
as distinct from 5. mucronata of Bigelow, which 18 a humble annual with thicker spikes, and 
the flowers more deeply immersed in depressions of the rachis. The latter may be called 8. 
Bigelovii. | 
SUÆDA MARITIMA, Dumort.; Torr. Fl. New York, 2, p. 141. Saline soils, Leon Spring$, Sep- 
tember ; Bigelow. | Plant apparently 3-4 teet high. 
SUÆDA FRUTICOSA (Forsk. ) var. ? MULTIFLORA, Torr. Bot. Whippl. Exp. р. 130. | Bay hills and 
ravines near Presidio del Norte, August; Bigelow. Rio Pecos; Thurber. 
PHYTOLACCACEAE. 
RIVINA Lavis, Linn.; Мод. 1. с. р, 11. В. portulacoides, Nutt. Trans. Amer. Phil, Soc., n. | 
ser. 5, p. 167. Common in alluvions throughout the valley of the Rio Grande and its branches 
below El Paso ; west to Cocospora, Sonora. (Nos. 1729 and 1730, Wright.) The branches and 
leaves are sometimes more or less pubescent. 
PHYTOLACCA DECANDRA, Linn.; Mog. 1. с. р. 32. Mouth of the Rojo San Felipe, September ; 
Schott. The specimens seem to belong to a depauperate form of the plant. The racemes are 
only 6—10-flowered. 
LAURACEJE. 
OBEopAPHNE CALIFORNICA, Nees, Syst. Laur. p. 463; Torr. Bot. Whipple’s Rep., р. 133. In 
various parts of California, especially in mountainous districts ; Parry, Thurber. Besides the 
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