127 
us ABRRONTA Jussieu. 
Richens LATIFOLIA sch. 
A arenari~ Menzies 
ABRONIA MARITIMA Nutt. 
ABRONIA TURB ay Torr. 
ABRONIA UMBELLATA Lam. 
AB so che > bh gon [OSA S. Watson 
“Pu nee or less densely | vil- 
sub ‘pee ig spreading: ste — 
nder: leav 1-1" hie hin 
tu attenuate into 
d: in- 
log- 
‘lobes 
with 
lous, 
and 
or ov: obtuse Siig “ utish, 
a ence pe tiole; heads 5-10-flowere 
Moora ‘ral seales narrowly lanceolate 
cuminate, 3-4” long: fl. pink, ime 
obeordate with a deep sinus; 
0dY, strongly reticulate: pitted. t 
¢ ngs consist of sfipple 
truneat 
A. ) Arizona. 
Watson, oe Natl. vis 
OXYBAPHUS NYCTAGINEUS Sweet. 
Genus BOERHAAVIA Linnaeus. 
recta L Or 2090 j 
BOERHAAVIA VISCOSA A. Gray. 
POLYGONACEAE. 
Genus RUMEX Linnaeus. 
R acetosella L ff da 14 
RUMEX C ONGLOMERATUS Mun. 
RUMEX CRISPUS Linn 
RUMEX HYM ENOSEPALUS 5 
“Sandy soils from El Paso to the can- 
yons of the Rio Grande; Mr—Ap. Root 
‘Pohuge inten- 
Lower leaves a ft 
ve, * Nearest 
CWheelery.”” 
6 (May 1873). 
be 
S Torr. 
‘sely bitter,’ Thurber. 
or more long & 2-3’ wide, somewhat un- 
dulate on the margin: upper ones nearly 
flat. Panicle a ft long, fls crowded. In- 
ner sepals of the fructiferous calyx near- 
ly 44’ long, roundish-ovate, strongly cor- 
ate, of a very thin texture, often rose- 
colored, slightly reticulate-veined, twice 
as long as the achenium.”” * * * Torr bot 
m boundary 177-8. Or 71j: d; z; da 14 
RUMICX MARITIMUS_ Linn. 
RUMEX SALICIFOLIUS Wein. 
Genus POLYGONUM Linnaeus. 
P acre HRK dal 
POLL, GONUM pice Rattar dt M are 
POLYGONUM ae “Fee so 
POLYGONUM Siero Lin 
HA Sashes } Tt A. 
DROPIPEROIDES rr 
POLYC AON UM 
POLYGONUM TENUE Michx. 
The West American Scienttst.—X. 
ACAU a Nuttall. 
winweene LIS DENUD Nutt. 
enus ERIOGONUM Michx. 
E prpaceritr M CLAVATUM Small. 
‘‘Annual, acaulescent. . Leaves basal; 
blades 5-13 mm. broad, much_ broader 
‘than long, undulate, strigose- hispid on 
both sides, cordate at the base or rarely 
runcate; petioles hou twice as long as 
t 
the blades, hispid: scapes erect, solitary, 
glaucous, forked above, the ultimate di- 
vision filiform, the lo internodes 
more or less ae non) the middle: 
bracts scale-like: peduncles hair-like, 1% 
spreading: involucres narrow- 
an I mm. 
cm, long, 
ly turbhinate, very small, less t 
long ents obtuse, as broad as psn) 
ae a the tube: calices densely 
hirsute less than 1 mm. seg- 
ments nearly equal, ovate- FEaceolae, a- 
cutish: filaments glabr: small. j 
KRIOGONUM GLAUvGU the 
“Annual, slender, acaulescent. Leaves 
peri blades ovate or oval-ovate, 
m long, obtuse, aal a. crisped, of- 
ten eiocnutoal softly hispid on both 
aces, obtuse or ia date at the 
poet petioles 2-3 times longer than the 
Small 
5-10 
blades, hirsute: scapes erect, solitary or 
several together, 1-6 cm tall, eiacons 
forked, the brauches ascending r 
spreading! peduncles 2 usin on one 
cm 
g, more or less spreading: invo- 
lucres glabrous, turbinate, 1 mm. long; 
segments oblong, cy about as long 
as the tube: calices densely hirsute, 2 
m. long; segments lanceolate, acute, 
erect; filaments glabrous. > Sin all, Bull. 
Torr. club, xxv, 51, fa. 25, 1898 e 
F. Jatifolium Smith 14; ff 
E virgatum Bentham da 15 
E ESR Wat ais 
E molestum Watson a 15 
E Selene ‘Watson Or 1466 
E grande Ge pitt 1:38; ca ac b 2:410 sz 
rubescens Ge pit 1:39; ca ac b 2:410; sz 
ERIOGONUM ANGULOSUM Benth. 
ERIOGONUM APICULATUM 8S. Watson. 
