CATALOGUE. 161 
WYETHTA AMPLEXICAULIS, Nutt —Utah. 
Wyerara Arizonica, Gray.—2-3° high, roughish hirsute; heads 2-4; 
leaves broadly lanceolate; upper ones sessile; lower ones petioled, a foot 
or more long ; scales of the involucre oblong or lanceolate, cinereous pubes- 
cent, ciliate; ligules 12, 10-14” long; achenia acutely angled, laterally 
compressed, 1—2- (or the outer ones often 3-4-) awned —Willow Spring, 
Arizona (222)—P tare IX. Branch, natural size. F igure 1. Section 
through receptacle showing ray-flower and disk-flower in position, the lat- 
ter subtended by its chaff; somewhat enlarged. 2. Chaff of disk-flower. 
3. Disk-flower. 4. Style and stigma of disk-flower. 5. Mature achenium 
of disk-flower. 6. Style and stigma of ray-flower. 7. Mature achenium 
of ray. Except where otherwise specified, all enlarged about 10 diameters. 
VieuierA* taxa, DC., var. BREVIPES, Gray (Pl. Lindh. 2, 228).—The 
loosely branching stem herbaceous, strigose-puberulent; leaves with short 
petioles, ovate or deltoid, plainly reticulated on the under surface, irregu- 
larly serrate, scabrous on both surfaces; petioles villose, especially on the 
upper surface; scales of the involucre in two series, lanceolate, pubescent, 
and nerved on the back, acute; chaff lanceolate, membranaceous ; recep- 
tacle convex; achenia flattened and densely covered with an appressed 
pubescence.—Camp Bowie, Ariz. (501); also collected by Loew in Central 
Arizona. . 
Vieurera RETICULATA, Watson (Amer. Naturalist, 7, 301).—‘ White- 
tomentose ; stems herbaceous; leaves subopposite, coriaceous and rigid, 
broad-ovate, 1-2 inches long, cordate at base, acute, entire, short-petioled, 
strongly reticulated beneath; bracts small, lanceolate; heads 4-5 together, 
in short close corymbs; involucral scales imbricated in 3—4 or more series, 
lanceolate, thick, appressed or the tips spreading; rays entire; receptacle 
shortly conical; chaff acutish; achenia silky pubescent, the pappus-awns 
subulate at base; scales lacerate.”—Telescope Mountain, Southeastern Cali- 
fornia. Will probably also appear in Nevada and Arizona. Not having 
access to a specimen of this species, I have availed myself of the above 
* Vieurera, H. B. et K.—“ Head, flowers, &c. as in Helianthus, but usually of smaller size; imbricated 
involucre less herbaceous; receptacle inclined to be conical ; and, especially the pappus less deciduous 
or even persistent, consisting of 2 or more scarious chaffy scales on each side between the awns.”— 
Gray, in FI. Cal. 1, p. 354. 
1l BOT 
