. Exploration and survey of the Valley of the Great Salt Lake of Utah : including a reconnoissance of a new route through the Rocky Mountains. . e. Fig. 4, the same di^dded longitudinally. Fig. 5, an innerand an outer scale of the involucrum. Fig. 6, a ray flower. , a disk flower. Fig. 8, corolla of the disk flower laid ojien. , branches of the style and their appendages. Chenactis STKVioiDEs, Hook. and Arn.; Torr. and Gray, , p. 3*71.—Strongs Knob, Salt Lake, June 10. Several of theray flowers have the corolla dilated, but the lobes still nearlyequal, and, as is the pappus, cons
. Exploration and survey of the Valley of the Great Salt Lake of Utah : including a reconnoissance of a new route through the Rocky Mountains. . e. Fig. 4, the same di^dded longitudinally. Fig. 5, an innerand an outer scale of the involucrum. Fig. 6, a ray flower. , a disk flower. Fig. 8, corolla of the disk flower laid ojien. , branches of the style and their appendages. Chenactis STKVioiDEs, Hook. and Arn.; Torr. and Gray, , p. 3*71.—Strongs Knob, Salt Lake, June 10. Several of theray flowers have the corolla dilated, but the lobes still nearlyequal, and, as is the pappus, considerably shorter than in the diskflowers. C. Tenuifolia of Nutt. is scarcely distinct from this species. C. ACHiLLE^FOLiA, Hook. and Arn.; Torr. and Gray, Fl. 1. c.—Stansburys Island, June 20. Stems about a span high, several * The Laphamia of Dr. Gray, although published subsequently to Monothrix,must take precedence of thafc genus, as it. now embraces one species with apappus of many bristles, another with a bisetose pappus, and two other speciesthat are quite destitute of a pappus; so that the latter name is no longer H£ £. C^sBioaiw APPENDIX D.—BOTANY. 391 from one root. Leaves somewhat fleshy, densely clothed with awhite tomentum; the lobes very small, obtuse, and much few (3-6) in a terminal corymb. Flowers of the ray anddisk nearly alike, funnel-form. Pappus of about ten oblong,obtuse, denticulate scales; five of which, in the disk flowers, arenearly as long as the tube of the corolla, and the five other abouthalf as long. Scales in the ray flowers much shorter than thecorolla tube. Plate VII. Chenactis achilleoefoUa, of the natural size. Fig. 1,a head of flowers. Fig. 2, an exterior scale of the 3, an interior scale of the same. Fig. 4, a disk 5, cross section of an achenium. Fig. 6, a ray flower. , branches of the style and appendages. Fig. 8 and 9, scales ofthe
Size: 1228px × 2035px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbairdspencerfullerton, bookcentury1800, bookdecade1850
