NEW OR NOTEWORTHY SPECIES. 345 
EuPHonBIA MamiLANDICA. Perennial, with pale-green 
glabrous glaucescent herbage, the bushy trichotomous stems 
about a foot high from long horizontal roots or rootstocks 
running only a little below the surface of the ground: 
leaves 14 inches long, the lower in whorls of 3 (correspond- 
ing to the trichotomous branching); those of the branches 
opposite (the branches being dichotomous); those of the 
loose inflorescence reduced to (opposite) subulate white- 
tipped bracts; all the proper foliage lance-linear, entire: in- 
volucres as in E. corollata but smaller, the appendages more 
nearly orbicular: fruit not known. 
Common among the sandhills of Anne Arundel Co., 
Maryland, about ten miles south of Baltimore. An ally of 
E. corollata, remarkably distinct from that species by its 
vegetative characters; the roots being horizontal and quite 
superficial rather than deep-seated; the stem trichotomous 
from near the ground, and all the lower leaves correspond- 
ingly in whorls of three; the upper branches all dichoto- 
mous, and their subtending leaves opposite. In its low 
bushy-spreading habit the plant simulates certain species 
of the Anisophyllum section of the genus. 
ARGEMONE LEIOCARPA. Resembling A. Mexicana, and 
with similar smallish yellow petals, but herbage more glau- 
cous, the whole stem, calyx, and even the capsules devoid 
of prickles; but the leaf-margins more strongly spinescent : 
capsules oblong, one-third larger than in A. Mexicana, and 
more obtuse, the stigmas almost sessile; valves of the peri- 
carp transversely rugose-veiny but otherwise smooth and 
glabrous. 
This interesting plant has long been imperfectly known 
as inhabiting Key West. Mr. Pollard and his companions 
have lately brought thence good herbarium specimens, 
while almost simultaneously Seargt. Ivar Tidestrom, my 
former pupil, has sent me a number of sheets of it from 
Prrronia, Vol. III. Pages 345-349. 27 Sept., 1898. 
46 
