. Mosses with a hand-lens; a non-technical handbook of the more common and more easily recognized mosses of the north-eastern United States. Mosses. 184 MOSSES WITH \ HAND-LENS JAMSONIELLA. AUTUMNALiS (DC.) Steph. (Jungermaiima Schradcri Mart.) is a common species often confused with Odontoscltisiiia prostratiiin. It appears to be a plant of more elevated and cooler regions than Odontoschisma, as I find it abundantly in the hills of southern Vermont, but not a trace of it near New York City. It most frequently grows on decaying wood, but may be found on soil, trunks of trees, etc
. Mosses with a hand-lens; a non-technical handbook of the more common and more easily recognized mosses of the north-eastern United States. Mosses. 184 MOSSES WITH \ HAND-LENS JAMSONIELLA. AUTUMNALiS (DC.) Steph. (Jungermaiima Schradcri Mart.) is a common species often confused with Odontoscltisiiia prostratiiin. It appears to be a plant of more elevated and cooler regions than Odontoschisma, as I find it abundantly in the hills of southern Vermont, but not a trace of it near New York City. It most frequently grows on decaying wood, but may be found on soil, trunks of trees, etc. It is sometimes plain green, but usually dark green to brownish in the older portions. The leaves are nearly circular to short- oblong, not margined, with the ends re- flexed when dry as shown in the figures. Flagella and geramfe wanting. The per- ianth is terminal on a leading branch, which distinguishes it from all forms of Odontoschisma when fertile. The posi- tion of the leaves when dry easily dis- tinguishes sterile FiGURi; 115. One moist and two dry branches of Jamsoniella autumnalis X S. NARDIA. There are several species of this genus within our range, but they are hardly to be made out with a lens except perhaps N. CEENULATA (Smith) Lindb. It is a smaller plant than the other round-leaved hepatics and grows on soil throughout our range. Mounted and examined with a high power lens JC' VJ J( fl^ ''' ^'" ^' ""''^ '-"^ recognized by the margin, made up of a single row of V, ij - WA very large square cells as shown in the figures. The margin is more dis- tinct than in Odontoschisma and after Figure 116. Side and mounting shows much more clearly, top view of a stem of Nardia In that genus the margin is made up crenulata hy about 20, and of two or three rows of much less strongly differentiated Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and app
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmosses, bookyear1905
