‘CATALOGUE. 155 
ERIGERON speciosum, DC.—Stem erect, glabrous or nearly so, 1-2° 
high, strongly furrowed, branching; entire stem leafy, branched above; 
radical leaves spatulate, petioled, those of the stem sessile, acuminate, 
slightly ciliate; infloresence corymbose; scales of the involucre in two or 
three ser‘es, crowded, linear, much attenuated at the tip, hirsute, and with 
scarious margins; rays over a hundred, narrow, purple; achenia slightly 
hairy, distinctly ribbed; outer pappus present, but not evident—Western 
New Mexico, Loew. As this species would here appear to be much out of 
its range, it may not be out of place for me to state I have compared the 
specimen with authentic specimens taken from the Cambridge Botanic 
Garden, and find them the same throughout. 
Ericeron czspirosum, Nutt—San Francisco Mountains, Arizona, 
and Utah. . 
Conyza* Couttert, Gray.—Softly pubescent and very slightly viscid, 
erect, somewhat branched at summit, 6’-2° high, leafy to the top; leaves 
linear or linear-oblong, sessile, somewhat clasping (or the lower spatulate), 
entire or irregularly pinnatifid or toothed; panicle close and crowded; 
heads small, 2’ long; scales of the involucre lanceolate, acute, with scarious 
margins and a green middle-—Mount Graham, Arizona, at 9,000 feet (743), 
where it is extremely common on the more open grounds, and strikingly 
suggestive, in habit, of Erigeron Canadense elsewhere. 
BaccHarist CARULESCENS, DC.—Shrubby at base, 6-8° high; branches 
slender; younger shoots and leaves smooth; leaves lanceolate, acute, irregu- 
larly sinuate-dentate, tapering to a short petiole, 3-7’ long and 4-7” wide; 
inflorescence in a loose paniculate corymb; each head on a slender pedicel 
with a small subulate bract at base; scales of involucre ovate, with a 
' * “Conyza Linn.—Heads many-flowered, heterogamous, but not radiate; the pistillate flowers in 
many series and more numerous than the fertile ones, with only a filiform truncate corolla shorter than 
the style; the few central flowers tubular and perfect, or some of them infertile. Involucre of narrow 
numerous scales. Receptacle flat or convex, naked. Style-appendages short. Achenes flattened, usually 
nerved only on the margins. Pappus as in Erigeron, in ours of simple scanty capillary bristles,” ete.— 
Gray, in Fl. Cal. 1, p. 332. 
+Baccuaris, Linn.—Homogamous, diccious. The sterile flowers with a perfect style, but an 
abortive ovary; style sometimes undivided; corolla tubular and pappus shorter and more tortuous. 
Fertile flowers pistillate only, corolla filiform and truncate. Achenia terete or somewhat compressed, 
ribbed. Heads many-flowered; scales of the involucre dry, in several series, the outer ones shorter ; 
receptacle flat or flattish.—Herbaceous or low shrubby plants, with alternate leaves and dull-colored 
i i ( hat conspicuous in B. Wrightii, Gray) flowers. 
