. Mosses with hand-lens and microscope : a non-technical hand-book of the more common mosses of the northeastern United States. cirrka/w PLATE XXXIl. Tor/cZ/rt (; ( From Bn. Eur.). PLATE XXXIII. Pntlia truncatula (From Bry. Eur.) i6o MOSSES WITH HAND-LENS AND MICROSCOPE POTTIA Ehrh. Plants short, sometimes branched, scattered or in tufts. Leaves soft, broadin outHne, enlarging upwards, ovate to oblong, usually papillose (but not so inour most common species), costa reaching apex or beyond (except P. riparla )\areolation rather lax for the family. Capsule erect and exserted on a stra
. Mosses with hand-lens and microscope : a non-technical hand-book of the more common mosses of the northeastern United States. cirrka/w PLATE XXXIl. Tor/cZ/rt (; ( From Bn. Eur.). PLATE XXXIII. Pntlia truncatula (From Bry. Eur.) i6o MOSSES WITH HAND-LENS AND MICROSCOPE POTTIA Ehrh. Plants short, sometimes branched, scattered or in tufts. Leaves soft, broadin outHne, enlarging upwards, ovate to oblong, usually papillose (but not so inour most common species), costa reaching apex or beyond (except P. riparla )\areolation rather lax for the family. Capsule erect and exserted on a straightseta, ovoid to cylindric; peristome lacking in our species. P. truncatula (L.) Lindb. {P. t>-uncata Fuern.) is our only common species,and will be readily recognized from the generic description and the leaves are not papillose. It is most likely to be confused with Physcomil-rium, as its habitat and general appearance are somewhat similar. It is distin-guished from Physcomitrhim by the smaller size, being only about half as large,and by its excurrent costa, which can be made out with a strong lens. Thespores mature from late autumn to early spring. P. riparia Aust. i
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Keywords: ., bookcentury1900, bookdecade1900, bookidmosseswithha, bookyear1903
