NYCTAGINACEAE. 
4. Allionia linearis Pursh. Narrow-leaved 
Umbrella-wort. (Fig. 1419.) 
Allionia linearis Pursh, Fl. Am. Sept. 728. 1814. 
Ci se et ta angustifolia Nutt. Fraser’s Cat. Name only. 
Oxybaphus angustifolius Sweet, Hort. Brit. 429. 1830. 
Stem slender, terete or somewhat 4-angled below, 
glabrous, glaucous, 1°-4 4 ° tall,erect, the branches and 
peduncles sometimes puberulent. Leaves linear,thick, 
I-nerved, 1/-214’ long, 114’/-4’’ wide, obtuse or acute 
at the apex, sessile or the lower occasionally short-peti- 
oled; involucre about 3-flowered, green before flow- 
ering; perianth purple, longer than the involucre; sta- 
mens and style exserted; fruit commonly roughened 
in the furrows between the 5 prominent ribs. 
In dry soil, Minnesota to Utah, south to Texas and 
Mexico, June-Aug. 
Ne 
5. Allionia Bédini (Holzinger) Morong. Bodin’s Umbrella-wort. (Fig.1420.) 
Oxybaphus Bodini Holzinger, Contr. Nat. Herb. 1: 287. 
pl. 21. — 1893. 
Allionia Bodini Morong, Mem. Torr. Club, 5:355- 1894. 
Low, glabrous or minutely pubescent, stem whit- 
ish, diffusely branched, slender, 2/-5’ high, the 
branches divergent. Leaves narrowly linear, sessile, \( 
14/-134’ long, 1’’ wide or less, slightly narrowed at 
both ends, fleshy; involucres solitary and short-pe- 
duncled in the upper axils, finely pubescent, about 
3/’ broad when mature, 5-lobed to about the middle, 
the lobes ovate-oblong, acute; fruitnarrowly obovoid, 
obtusely 5-ribbed, very pubescent, 214’” high. 
In dry soil, eastern Colorado and western Kansas. 
June-July. i IN] : 
Zee 5 j 
po y 
i), y : 
/ 6. Allionia Bushi Britton. Bush’s 
} Umbrella-wort. (Fig. 1421.) 
- Allionia Bushi Britton, Bull. Torr. Club, 22: 223. 
j 1895. 
Low, glabrous, somewhat fleshy, stem nearly 
Z white, diffusely branched, about 8’ high, the 
branches slender, widely divergent. Leaves nar- 
Sif rowly linear, sessile, 1/-3’ long, 1/’-1%4’’ wide, 
Nn ee blunt, their width almost uniform from base to 
S apex; involucres clustered at the ends of the 
\) branches, at first campanulate and longer than the 
flowers, at length rotate and becoming 10’ broad, 
/ membranous, pubescent, finely reticulate-veined, 
i their short lobes semicircular, rounded, the mid- 
veins prominent. 
In dry ground; Jackson Co., Missouri. Aug. 
2. ABRONIA Juss. Gen. 448. 1774. 
Annual or perennial herbs, with opposite petioled thick entire leaves, one of each pair 
somewhat larger than the other. Stems ascending, erect or prostrate, branching, mostly glan- 
dular-pubescent, with clustered or solitary numerous-flowered involucres on long axillary 
peduncles. Flowers sessile, usually conspicuous. Perianth-tube elongated, tubular or fun- 
nelform, the limb spreading, 5-lobed, the lobes obcordate or emarginate. Stamens 3-5, un- 
