` terminate mais at the summit, where they are dilated laterally, so that the fruit appears, 
170 UNITED STATES AND MEXICAN BOUNDARY, 
mostly 4-lobed, the lobes notched. Stamens usually 3, not exserted. Fruit oval, the margin 
winged, usually 4-6-іооіһей on each side, and reflexed over the back, so that the opposite sides 
nearly meet, and thus partially conceal two longitudinal dorsal rows of spherical stipitate glands, 
Achenium oblong, apiculate with the persistent. base cf the style. 
ABRONIA CYCLOPTERA, Gray, l. с. p. 319. А. (Tripterocalyx) micrantha, Torr. in Frém. 1st 
Hep. p. 96. Sandy places on the Rio Grande, from Dona Ana to San Elceario, April, June; - 
Wright, No. 1112. 
ABRONIA ARENARIA, Menz. in Hook. Exot. Bot. t. 193; Choisy,l. c. Sea beach, Monterey, 
California; Parry. Flowers bright rose-color. Perennial fusiform root sometimes 4 feet long 
and 2 inches in diameter. It is said to be eaten by the Indians. Common along the coast of 
California, and extending to Puget's Sound. 
ABRONIA UMBELLATA, Lam. Ill. t. 5; Hook. le. t. 194; Choisy, 1. c. Abundant on the coast of 
California. Root smaller and more branching than in the preceding species ; Parry. 
ABRONIA MELLIFERA, Dougl. in Hook. Bot. Мад. t. 2879; Choisy, l. с. Sandy hills near El 
Paso, etc., westward to the Colorado, California, April—June The wings are triangular and 
truncated or turbinate. The body of the fruit is much shorter than in the next species. 
ABRONIA FRAGRANS, Nutt. MSS.; Hook. Kew Jour Bot. 5, p. 261; Torr. & Gray, Bot. Beck- 
with Hep. р. 14, t. 10. Sandy hills on the upper Rio Grande, and west to Chihuahua, April 
to August. The mature fruit is distinctly but narrowly 5-winged. What was cited asa dwarf 
form of A. mellifera in Bot. Whippl. Rep. p. 131, is A. fragrans. Ufo Ë 
NYCTAGINIA CAPITATA, Choisy, l. c. Western Texas and valley of the Rio rade: common. 
2; 
` (No. 1709, Wright ; 680, Lindheimer, с.) 
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ACLEISA 
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و 
_ ACLEISANTHES LONGIFLORA, Gray, l. с. (Тав. XLVI.) Sandy soils, western Texas and valley 
“ the Rio Grande, on both sides of the river, June—October. (No. 599 and 1704, Wright.) 
“Тһе stamens and style are frequently much exserted i in the later flowers, as they are in those 5 
А. Berlandieri. 
+ ACLEISANTHES ANISOPHYLLA, Gray, 1. с. Іп alluvial soil, Turkey creek, and on Rio San РЫ, 
western Texas. (No. 598 and 1706, Wright.) 
ACLEISANTHES BERLANDIERI, meg l. c. Nyctaginia йй, Choisy, 1. с. p. 429. Near Laredo, 
lower Rio Grande, June; | Schott. (No. 1705, Wright; No. 1544, 2007, 3044, and 3203, Ber- 
re mostly acute. Flowers white, striped with pale purple. 
4 ЛА, Gray, 1. с. On the Rio Grande, from Los Moros up to the Pecos, 
. (No. 599a , Wright ) ; 
PENTAGROPHSS WzRrangrtr, Gray, l. с. p. 318. (Тав. XLVII, B.) Rocky hills near Leon 
i xico, September; Bigelow. Between Victoria and San Antonio, Texas ; Schott. In 
specimens the flowers are expanded, with a slender tube an inch and a half long and 
кси. ъбийеп». The fruit of these flowers differs from that of the unexpanded precociously 
tructified ones from which Dr. Gray drew the generic character. The5 glands, instead of being 
`. жери and crowning the fruit, are small, rather depressed, and seated on a neck or con- 
icted portion of the fruit a little below the summit. Me ITIS 
- 
ELINOCARPUS CHENOPODIOIDES, Gray, 1. c. Gravelly hills and valleys on the Rio Grande, from | 
к! Paso to the Presidio б Norte, and westward to Ojo de Vaca, Chihuahua, April—July. 
(No. 1707, Wright.) | 
SELINOCARPUS ANGUSTIFOLIUS (n. 394 Pe caule fruticuloso e basi ramosis- 
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