206 
BOTANY. 
Canons and banks of creeks from Western Nevada to the Uintas ; 4,500- 
10,000 feet elevation ; June-September. (719.) 
Maceoeehynchus geandifloeus, T. & Gr. Perennial, slightly webby- 
pubescent throughout; leaves 5-15' long, liiicar-lanceolate, runcinately 
toothed or laciniate with long acuminate teeth ; scapes 1-2° high ; heads 
very large ; outer involucral scales foliaceous, broadly ovate-oblong, ciliate- 
pubescent ; the inner ones narrower and with slightly scarious margins ; 
achenia strongly 10-ribbed, one-fourth the length of the very slender beak, 
and halt as long as the white soft capillary pappus. — Oregon and Oahfornia. 
Foot-hills near Salt Lake City ; 4,500 feet elevation ; May. (720.) 
Maceoeehynchus heteophyllus, Nutt. Annual, pubescent, often 
somewhat caulescent ; leaves 2-5' long, Hnear-spatulate ; the earlier ones 
entire or slightly toothed ; later ones commonly laciniate with a few short 
acute teeth ; scapes 4-9' high ; involucral scales imbricated in about 3 rows ; 
the outer ones somewhat hairy and shorter than the smooth oblong-lance- 
olate inner ones ; achenia fusiform, with ten corky or winged often undulate 
ribs ; the filiform beak 3-4 times longer than the body of the achenium, and 
considerably longer than the very delicate pappus.— The present specimens 
have considerably longer achenia and pappus than those collected in Califor- 
nia by B rewer, and while the ribs of the achenia are rounded and corky 
they show nothing of the undulation so strongly insisted upon by Nuttall. 
Oregon and California. West Humboldt Mountains, Nevada, on the hills 
about Salt Lake City, and on Antelope Island, Utah ; 4,500-5,500 feet 
elevation ; May, June. (721.) 
Taeaxacum Dens-leonis, Desf. Common throughout the Northern 
States and '^sparingly naturalized" in the Southern, (Chapman.) Arctic 
America, and along both sides of the Rocky Mountains, (Hooker,) to Colo- 
rado, ('^ truly indigenous," Hall & Harbour.) Prof Brewer states that he has 
never seen it in Cahfornia. The dandelion is named by Josselyn in 1672 in 
a hst ''of such plants as have sprung up since the English planted and kept 
cattle in New England." Europe, Western Asia, and Northern Africa. 
City Creek Canon in the Wahsatch, and in the meadows of Salt Lake Val- 
ley ; probably introduced. (722.) 
Taeaxacum palustee, D 0. Very smooth ; leaves lanceolate or oblong- 
spatulate, entire, sinuate, or slightly runciiiate, usually shorter than the 
scape; ''scales of the involucre not corniculate, " the outer ones lanceolate, 
