318 The Botanical Gazette. 
(August, 
++ Sepals fewer than 3. (MENGEA). 
24. A. CALIFORNICUS Wats. Bot. Calif. 2: 42, 1880. 
. Mengea Californica Mog. DC. Prodr. 132: 270. 1849. 
Diffuse ascending or erect: leaves spatulate or ovate vary- 
ing from 0.5 to 3.5™ long on the same plant, only the upper- 
most white-margined. Flowers not differing essentially from 
the following.—California, from San Diego to Mendocino 
county, and western Nevada. ‘ 
25. A. albomarginatus, n. sp. 
A very dense-leaved prostrate plant forming a dense mat — 
on the ground. Stem white, leaves elliptical, uniformly very 
small (the smallest known in the genus, averaging only about 
3 to 4™" in length), all conspicuously white-margined: 
flowers crowded amongst the dense foliage, sepals reduced to 
2 or 3 minute scales, mostly appearing only one-sepaled.— 
Monterey co., California (Palmer 456 in 1876). Distributed a0 
as A. Californicus. eee 
$5. Sepals two to five, narrowly oblong or spatulate, i 
widely separated, mostly longer than the indehiscent utricle: oo 
bracts inconspicuous.’ oe 
Six species of this section are found in the United Sta se a 
our flora in being adventive, or but recently introduc on a 
countries. Thus, excepting that 4. crispus is found at Albany, * "» 
. emarginatus Salzm. only at New Orleans, and A. deflexus | 0 
dens about San Francisco Bay ” (Greene), all are con 
gion “where it is the common pig-weed ” (Morong, on la 
mens from Paraguay). Ieawts 
* Stem erect, succulent, mostly deep red or purple: oor 
. large. as 
+ Utricle smooth, scartous. 
26. A. LIvIDUS Linn. Sp. Pl. 990. 1753- 
Further distinguished from the next by its ee Jot 
emarginate leaves, fleshier stem, inflorescence Be fee 
late, with a short rather thick terminal spike.—fOU"” 
Boston and New York city. os 
