. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 208 GRAMINEAE. Vol. I. 8. C. Panicle more or less contracted. Culms and almost filiform leaf-blades soft, not rigid. Culms and wide leaf-blades hard, rigid. Panicle elongated, loosely flowered; culms not tufted, or little so. 9. C. inexpansa. Panicle short, dense and spike-like; culms strongly tufted. Panicle narrow, much interrupted below; awn much
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 208 GRAMINEAE. Vol. I. 8. C. Panicle more or less contracted. Culms and almost filiform leaf-blades soft, not rigid. Culms and wide leaf-blades hard, rigid. Panicle elongated, loosely flowered; culms not tufted, or little so. 9. C. inexpansa. Panicle short, dense and spike-like; culms strongly tufted. Panicle narrow, much interrupted below; awn much shorter than the scale. 10. C. labradorica. Panicle thick, continuous, or little interrupted; awn about equalling the scale. 11. C. hyperborea. Prolongation of the rachilla hairy only at the summit. 12. C. cinnoides. i. Calamagrostis Pickeringii Gray. Picker- ing's Reed-grass. Fig. 500. C. sylvatica var. breviseta A. Gray, Man. 582. 1848. C. Pickeringii A. Gray, Man. Ed. 2, 547. 1856. C. breviseta Scribn. Mem. Torr. Club, 5 : 41- 1894. C, breviseta debilis Kearney, Bull. U. S. Dep. Agr. Agrost. 11: 25. 1898. Culms 12-18' tall, erect, rigid, simple, scabrous below the panicle. Sheaths smooth and glabrous, the lower overlapping, the upper one elongated; ligule i"-3" long; blades ii'-4' long, 2" wide, erect, smooth beneath, rough above; panicle 3'-4^' in length, the branches ascending or erect, the lower l'-ii' long; spikelets ii"-2" long, purple tinged, the outer scales acute, scabrous on the keel; third scale shorter than the second, obtuse, scabrous, the basal hairs very short; awn bent, not twisted, equalling or slightly- exceeding the scale. In wet places, Newfoundland to the mountains of New England and northern New York. Occurs in the alpine region of the White Mountains. 2. Calamagrostis lacustris (Kearney) Nash. Lake Reed-grass. Fig. 501. C. breviseta lacustris Kearney, Bull. U. S. Dep. Agr. Agrost. 11: 25. 1898. C. Pickeringii lacustri
Size: 1402px × 1783px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
