Aster hirsuticaulis, Lindl. in De C. Prodr. V. p. 242, n. 107. foliis conformibus lanceolato-linearibus integerrimis pericliniique foliolis ciliatis et setaceo-mucronatis pilosulis, caule pubescente recurvo a basi ramoso, ramis simplicibus patentibus, calathiis in apice ramorum confertis subspicatis (3-8), periclinii foliolis oblongo-linearibus laxiusculis apice herbaceis subrecurvis. (Aster setiger, N. ab E. in sched.)
Locus ante Asterem diffusum.
Species mucrone foliorum et squamarum periclinii setiformi (seu potius seta has partes terminante) et floribus magnitudine Bellidis in apicibus ramorum approximatis brevissime pedicellatis, spicas cylindricas in aliis autem veluti capitula exhibentibus, distincta. Radius brevis, albus.—Caulis 1-2 ped. altus, dense cano-hirtus. Folio in caule et ramis conferta, patentia, caulina 1½-2 poll. longa, 1½ lin. lata, ramea 1½ pollices longa et vix lineam lata, omnia setulis ciliata et parce pilosula, seta terminata. Rami ab infimo caule incipientes, 2½ poll. longi, apicem versus ita decrescentes, ut apex caulis racemum compositum densum angustumque exhibeat.
Aster multiflorus var. β ciliatus, N. ab E. (Gen. et sp. Ast.)
Aster rubricaulis var. β elatior, N. ab E. G. et Sp. A. Near Fort Mc Kenzie, in the prairies of the upper Missouri, 12th Sept., 1833.
Chrysopsis gossypina, De C. (Inula gossypina, Pursh.) Integumentum omnino ut in Inula villosa, Nutt. (Chrysopsi villosa, De C.), sed folia obtusa quandoque cum parvo mucronulo. Pappus pallide sulphureus, exteriori serie brevissima alba.
Sideranthus, Fraser. (Amelli sp., Pursh. Starkea? Nutt. Aplopappi sp. De C.)
Calathium multiflorum, radiatum, radio uniseriali femineo, flosculis bidentulis; floribus disci 5—dentatis hermaphroditis, stigmatum cono sterili longo scabro. Clinanthii alveolæ lacero-paleaceæ. Periclinium pluriseriale, imbricatum, foliolis linearibus, setaceo-mucronatis nervo infra apicem tumente herbaceo. Achænia cuneiformi-angusta, erostria, sericeo hirta. Pappus pilosus, denticulato scaber, pluriserialis, radiolis exterioribus brevioribus. Fruticulus foliis alternis pinnatisectis, laciniis spinuloso-setigeris.
This genus is next to Aplopappus, Cass., from which it is distinguished, besides the habit, by the unequal pappus, and by the scales of the involucrum below the mucro, which are herbaceous, and marked with glandular swellings. From this last character we might be inclined to connect it with Clomenocoma, Cass.; but this genus is sufficiently distinguished by the truncated bearded branches of the style. Our genus is more nearly allied to Sommerfeltia, Less., and almost the only difference is in the fertile florets of the disk, which in the other are barren.
Sideranthus spinulosus, Fras. ex Steud. (Aplopappus? spinulosus, De C., Prodr. V., p. 347, n. 8. Starkea? pinnata, Nutt. Gen. II. p. 169. Amellus? spinulosus, Pursh. Fl. Am. septentr. II. p. 564. Torrey in Ann. Lyc. Novebor. II. p. 213, n. 223.) On the 12th of September, near Fort Mc Kenzie. Flower large, yellow.