. 
. : 
106 Ree PLANTEH FENDLERIANA. - 
; t 427. ee DRACUNCULOIDES, Pursh. Fl. 2. p. 742; Torr. § Gray, Fl. 2. p. 
M6. ‘Bottom of = Mora River; Aug. (511.) 
* 
* nosis vi m. qundpersis: — Californias Coulter. Valley of the Rio Nazas, &c., in Chihuahua, Dr. Gregg ; 
f 
flowering in April and May. — Plant from 8 to 16 inches high; the radical leaves somewhat bipinnatifid, with 
few segments ; the upright branches naked above for the length of 4 or 6 inches, and bearing solitary heads 
(like Bahia leucophylla), which are nearly an inch in diameter with the rays outspread. These at maturity 
are five lines long and over three in width, at length reflexed over the involucre, which they conceal, in several 
series : although not really so numerous as in the next species, yet they are more strikingly imbricated, being 
more dilated and arranged around a smaller disk. The minutely bearded apex of the branches of the style 
exhibits in this species a more or less distinct central mucronation or slight cone : in the others they are abso- 
lutely truncate. 
3. B. muntirapiata (Harv. § Gray, 7. c.): caule subsimplici vel basi ramoso ramisque adscendentibus 
superne longe nudis; foliis 1 ~ 2-pinnatifidis summisve parvis integris ; involucro late hemispheerico polyphyllo; 
ligulis circiter 50 oblanceolato-cuneatis sensim unguiculatis involucrum triplo superantibus. — Torr. in Emo- 
ry’s Report, p. 144. t. 6.—California, Coulter. Interior of California near Hernandez’ Spring, Fremont. 
Along the Rio del Norte, New Mexico, and in the region between it and the Gila, Col. Emory. Sandy 
plains near Albuquerque, Dr. Wislizenus. Near Chihuahua and valley of Rio Conchos, Dr. Gregg. —A 
stouter, and, when branched, a more spreading plant than the last; the leaves more pinnatifid ; and the showy 
golden-yellow heads about twice as large, being over an inch and a half in diameter, including the narrowly 
oblong-cuneate rays, which are half an inch long. Achenia nearly as in the last, sprinkled with minute 
resinous globules. 
Dr. Gregg and Dr. Wislizenus both collected a shrubby Composita, apparently of Anthemidew-Athana- 
siez (but this is uncertain), which I am unable to refer to any known genus. I have therefore characterized 
it, under its popular appellation, as given in Dr. Gregg’s memoranda : — 
VARILLA, Nov. Gen. 
Capitulum discoideum, homogamum, multiflorum ; fl. hermaphroditis. Involucrum turbinatum, imbricatum, 
pauciseriale, disco brevius ; squamis subulatis. Receptaculum conicum, paleis angustissime linearibus (superne 
paulo dilatatis) onustum. Corolle fauce cylindrica e tubo brevi gracili subito dilatata, 5-dentata, dentibus ovatis 
revolutis glabris. Anthers exserte ecaudate. Styli rami compressiusculi, extus minutissime puberuli, cono 
brevissimo obtuso pubero terminati. Achenia conformia, oblonga, subteretia, multicostata, pappo brevi setu- 
loso coronata ; setulis circ. 15 ex costis achenii ortis, simplicibus vel paucis subramosis.—Suffrutex glaber, 
_parum viscidulus, foliosissimus ; foliis oppositis summisve alternis, elongato-linearibus, uninerviis, integerrimis ; 
capitulis fastigiato-corymbosis ; floribus luteis. 
V. Mexicana. — Between Pelayo and Cadena, in the State of Chihuahua, Dr. Wislizenus ; May. Valley te 
east of Parras, Dr. Gregg ; April. — This is said to form a low shrub of two to three or Five feet in height. ‘ 
The leaves are two or three inches long, and one or two lines wide, rather thick. The heads are numerous 
in rather dense terminal corymbs, a quarter of an inch long; the short peduncles with subulate bracts which — 
pass"into the scales of the involucre. These are rather rigid and appressed, yellowish, with slightly. scarious 
margins. The palez are similar, but narrower and longer, equalling the flowers, minutely glandular. _ Corolla 
with the tube glandular, otherwise glabrous. Anthers linear, yellow. Achenia black, much shorter than the 
