64 BOTANICAL GAZETTE [JULY 
Eriogonum Visheri, n. sp.—Bushy branched, glabrous or 
glabrate annual, 15-25 cm. high: stem usually solitary from the 
crown, branching from the first node, the 2 or 3 branches each 
branching di- or trichotomously several times, the ultimate 
branchlets filiform: leaves rosulate at the base, a whorl of fewer 
and smaller leaves at the first node; blades mostly broadly oval, 
rather thick, 15-20 mm. long, on petioles either longer or shorter 
than the blades; involucres turbinate, in the forks or at the nodes, 
either sessile or on slender erect pedicels 5-10 mm. or more long: 
flowers solitary or few in each involucre, usually drooping on short 
pedicels, very small, yellow; the perianth segments narrowly ~ 
oblong, 1-1.5mm. long: achene trigonous, ovoid-acuminate, 
2 mm. long. 
Singularly like E: mohavense Wats. in general aspect, but at once separate 
by its glabrous leaves. Geographically and environmentally very different. 
Secured by Professor S. S. VISHER, of the State. University of South Dakota 
at Meadow, Perkins County, August 3, 1912, no. 536. 
Polygonum pannosum S. S. Sharp," n. sp.—Slender, glabrous 
annual, 15-25 cm. high, from a slender, rigid taproot: stem 
branching irregularly from near the base upward, giving the plant 
a bushy appearance: leaves few, linear, inclined to be revolute, 
as) ae long, acute, sessile, becoming bractlike above; sheaths 
lacerate into numerous threadlike awns, scarious on the margin, 
but with a brown midrib extending from the base to about one-half 
their length: flowers humerous in long, slender, spicate racemes, 
often secund, usually two in the axil of e 
mm. long: stamens 8: style sh the branches 
slight] ae, : yle short, e bran 
b eared manera achene black, smooth and shining, triquetrous, 
toadly ovoid, 2~3 mm. Jon : 
Most ry alli : 
by aes rh ah — Douglasii Greene, but at oncé seen to be different 
lacerate sheaths Seip erate stems, the minute linear leaves, and the 
" : 4s found on sandy sl] i : 4 
Wyoming, August 26, 1912, my no. 258, Y Slopes in the hills near Sheridan, 
iM ; : 
r. SHARP is a Student in the University of Wyoming, 
