66 PLANTH FENDLERIANE. 
+310. E. aceratorwes, Linn. One hundred miles west of Independence. (345.) 
$311. E. rerrouiatum, Zinn. Near Fort Leavenworth; September. (337.) 
312. Drererta coronopirotia, Nutt.; Torr. § Gray, Fl. 2. p. 101. On the Ar- 
kansas, and between Santa Fé and Pecos. (352.) — In cultivation, from Texan seeds, 
this proves to be a very showy annual. The heads, with the expanded bright violet- 
colored rays, are an inch and a half in diameter; the disk golden-yellow. The pappus 
is often white. 
+313. Aster travis, Linn.; Torr. §& Gray, l.c. Valley of Santa Fé Creek, at the 
foot of mountains, nine miles above the town. (362.) 
$314. A. azureus, Lindl.; Torr. § Gray, l.c. Prairies on the Kansas River. (366.) 
+315, A. sacitrmrouius, Willd.; Torr. & Gray, 1.c. Council Grove, &c. (357.) 
316. A. sertceus, Vent. Council Grove, &c.; September. (355.) 
+317. A. Fenpuert (sp. noy.): caulibus spithamzis e caudice sublignosa pluribus 
adscendentibus rigidis parce hispidulis ; ramis corymboso-paniculatis monocephalis ; foliis 
sessilibus rigidis coriaceis parvis linearibus mucronulatis integerrimis glabris uninerviis 
‘y, marginibus hispido-ciliatis, infimis subspathulatis, ramealibus brevissimis ; involucri cam- 
panulati squamis 3-seriatis lineari-oblongis glanduloso-scabrellis mucronulatis, exterioribus 
herbaceis obtusis laxis, interioribus acutis paulo longioribus; acheniis pubescentibus. — 
On the Ocaté Creek and the Rio Colorado (Upper Canadian) ; Aug. (372.) — A low 
species, of the group Ericoidet, or perhaps Amelli, with much the aspect of Diplopappus 
lucri lineari-oblongis acutiusculis ; tubo corolle fauce breviore; pappo e setulis plurimis subcoroniformi-con- 
cretis et sepe 5-aristellatis. — Aceratum ? (Micraceratum) Wrieuti, Torr. § Gray, ined. in Proceed. 
Amer. Acad. 1. p. 46. — Low places in the prairies along the Colorado River above Columbus, Texas, Mr. 
Charles Wright. — A span to a foot high; the stems very leafy, much branched. Leaves 6 to 8 lines in 
length. 
2. T. rtvuxaris (sp. nov.): fluitans ; ramis emersis ; foliis obovato-spathulatis sinuato-incisis grosse-den- 
tatisve basibus longe angustatis connato-amplexicaulibus; pedunculis solitariis vel binis monocephalis; capitulo 
majusculo (3-4 lin. lato) ; squamis involucri circ. 12 ovalibus obtusissimis ; tubo corolle gracili faucem sub- 
hemisphericam zquante ; pappo exaristato.—In springs and small flowing streams, Monterey and Cerralbo, 
Dr. Gregg, Dr. Edwards. On the Mexican side of the Rio Grande above Presidio, Mr. Wright. — A near 
ally of the preceding, but truly aquatic; the stems somewhat succulent. Leaves one or two inches long, with 
a few coarse and obtuse teeth. The flowers are said to be yellow by Dr. Gregg, but they do not appear to 
be so in the specimens; and Mr. Wright pronounces them to be purple. The pappus consists of numerous 
minute sete, rather than squamelle, which are more or less confluent or coroniform-united at the base, just 
as in T. Wrightii, but there is no trace of any stouter bristles or awns. These plants certainly do not belong 
to Ageratum ; but if the divisions Alomiex and Ageratee of De Candolle are to be combined, this genus 
should stand next to Phalacrea, DC. 
Pec st serial ch mee a 
