CATALOGUE. 
315 
by Meisner in DC. Prodr. and R. E7igehnanni^ Ledeb. adopted, on account of 
a prior R. hastulatus^ Sm., wliicb, however, lie himself refers to Miihlenheckia 
Chilensis^) but of stouter habit, with lanceolate, not at all hastate leaves, and 
the valves larger, entire and rather less obtuse ; they are somewhat erose in 
P. hastatulus. (1,054.) 
PoLYGOXUM AVicuLARE, L. From latitude 65° southward to the Gult 
and Mexico. A prostrate or in the young state ascending form, with small 
leaves, 4-8" long and 1-2" broad, and the flowers mostly in short dense and 
leafy racemes, the floral leaves but 2-3" long and 1" or less wide. West 
Humboldt Mountains and Ruby Valley, Nevada ; 5-6,000 feet altitude ; Au- 
gust, September. (1,055.) 
Var. LATiFOLiUM. Prostrate or ascending ; leaves oblong, obtuse ; flow- 
ers distant; sepals 5-6, often yellowish, as also the whole plant; achciiium 
more or less minutely tuberculate. — A common form. Toyal)e Mountains 
near Austin, Diamond Valley, and in the Wahsatch ; 5-6,000 feet alti- 
tude. (1,056.) 
Var. ERECTUM, Roth. 1-3° high, somewhat yellowish ; leaves lanceo-. 
late, 1-2' long, 2-6" wide, acute ; inflorescence as in the last ; sepals more 
usually 6, when but 5 one side of the achenium is without its sepal ; ache- 
nium sometimes perfectly smooth. — Some of the specimens are very good 
P. ramosissifnum, but it seems impossible to draw a line of distinction. Fre- 
quent through Western Nevada : 4,500-6,000 feet altitude ; July-Septem- 
ber. (1,057.) 
Polygonum (Avicularia) minimum. Annual, dwarf and alpine, 1-2' high, 
very slender, suberect, simj^le or branched from the base ; stems angular, 
minutely puberulent, leafy to the apex ; leaves ovate or ovate-oblong, 2-4" 
long and 1-2" wide, acute, narrowing abruptly into a very short petiole, 
somewhat glaucous; sheaths somewhat obliquely truncate, acuminate, not 
fringed ; flowers on short pedicels, nearly 1" long; sepals 5; achenium oblong- 
acuminate, perfectly glabrous. — A minute and delicate lorm, rarely over an 
inch in height, closely related to P. avicu/are. Wahsatch and Uinta Mount- 
ains; 9-11,000 feet altitude; August. (1,058.) 
Polygonum tenue, Mx, From Canada to the Carolinas and west to 
the Saskatchewan ; Washington Territory to California ; New Mexico. On 
the mountains and foot-hills through Nevada and Utah ; 5-7,000 feet altitude. 
Fruit reflexed. (1,059.) Var. Leaves broader, usually dark green and 
