106 
BOTANY. 
Pale® of the pappus oblong, or the alternate ones oval, about one-sixth of the length of the 
corolla, scarcely longer than the breadth of the achenium. Receptacle proportionately large, 
ovoid-conical. 
I append the characters of what must he regarded as a new genus, allied to Bahia, Burrielia, 
and Actinolepis, and remarkable for its multisetose rather than paleaceous pappus. 
SYNTRICHOPAPPUS, Nov. Gen. 
Capitulum multiflorum, heterogamum; floribus radii 5 ligulatis fcemineis ; disci tuhulosis 
hermaphroditis. Involucrum obovatum, e squamis 5 erectis membranaceis discum sequantibus. 
Receptaculum convexum, nudum. Coroll® glabra?; disci infundibuliformes, limbo quinquelobo, 
lobis lineari-oblongis ; liguhe breves, late ovales, apice trilob®. Anther® lineares, in appen- 
dicem lanceolatam longe products. Styli rami fl. disci appendice triangulata complanata his- 
pidula conspicua superati. Ovaria oblongo-linearia, hirsuta. Pappus (radii et disci conformis) 
e setis plurimis (35-40) uniserialibus filiformibus hispidulis eequalibus basi inter se pi. m. 
coalitis constans, corolla disci paullo brevioribus. Herba monocarpica, e hasi ramosa, depressa, 
floccoso-lanata, deinde glabrescens; foliis alternis cuneato-spathulatis apice trilobatis ; capitulis 
hreviter pedunculatis ; floribus flavis. 
Syntrichopappus Frbmontii. (Tab. XY.) Gathered by Colonel Fremont (a single specimen) in 
his journey across the continent in 1853-4, probably in the spring of 1854, and somewhere between 
the Rocky Mountains and the Sierra Nevada. A small herb, intermediate in habit between 
Actinolepis, DC., and Bahia § Trichophyllum. Leaves 6 to 10 lines in length, tapering from 
the summit into a long, narrowed base. Heads somewhat glomerate on the branches, 3 lines 
long. Scales of the involucre concave, with narrow scarious margins. Pappus white, com¬ 
posed of 30 to 40 uniform and equal slender bristles, which are all usually connate at the very 
base into a ring, so as to fall away together; and also for the most part further united in twos, 
threes, &c.; the combined base somewhat paleaceous. 
Amblyopappus Neo-Mexicanus. Schkuhria (Amblyopappus vel Achyropappus ligulus nullis) 
Neo-Mexicana, Gray , PI. Pencil, p. 96. Hills and rocky places near La Cuesta, &c., between 
the Pecos and the Rio Grande ; September. The same as Fendler’s No. 458. Except in the 
want of rays, this is an Achyropappus ; the species of which (along with an unpublished one, 
gathered by Dr. Bigelow on the Limpio, in 1852, Bahia (Achyropappus) Bigelovii) I am unable 
to keep generically separate from true Bahia. Its characters accordingly associate it with Am¬ 
blyopappus, Hook. & Am. (Aromia, Nutt. ; Infantea, Remy,) which may perhaps be kept 
distinct for the sake of convenience, unless, as is likely, radiate and rayless heads should occur 
in the same plant. 
Villanova chrysanthemoides, Gray , PI. Wright 2 ,p. 96. Rocky places near Hurrah creek; 
September. In a few heads some traces of a chaffy pappus were detected, showing that this is 
really only an epappose Bahia. 
Monolopia major, DC. Prodr. 6, p. 74. A small form, Napa valley, Feather river, &c., Cal¬ 
ifornia ; May. 
Monolopia lanceolata, Nutt. PI. Garnb. in Jour. Acad., Philad., n. ser. l,p. 175. Los An¬ 
geles, California ; March. This comes from the same district as Nuttall’s M. lanceolata, and 
was likewise gathered by Coulter, (No. 323.) The leaves are lanceolate, nearly all toothed, 
and less woolly than those of M. major ; but the lowest are opposite, and the scales of the invo¬ 
lucre are united to about the middle. 
Lasthenia (Hologymne) glabrata, Lindl. ; DC. Prodr. 5,p. 665. Near Tamul-Pass Moun¬ 
tain, California; April 11. 
Burrielia (Baeria) chrysostoma, Torr. & Gray, Fl. 2 , p. 379; and var. macrantha. San 
Francisco ; the variety on hills near Punta de los Reyes, California ; April. The stems, foliage, 
&c., of the variety accord with the larger states of Burrielia chrysostoma; but the head is of 
extraordinary magnitude, the involucral scales being half an inch, and the rays an inch in length. 
