. Plants and their uses; an introduction to botany . Fig. 345.—^Horned-livcrwort. Young sporophyte {sg, sg) showing the be-ginnings of a columella (c, c) and spores (s). L, L, calyptra, ^ja.(Hofmeister.) Fig. 346.—Peat moss (Sphagnum acutifnlium. Peat moss Family, Sphagna-cece). A, spore, highly magnified. C, spore (s) germinating in waterproducing a green liranched thread or prolonema (n, 7t) from whichbuds (pr, pr) arise and produce gametophytes. (Schimper.)—Plantcommon in bogs. Fig. 347. — Peatmoss. Flat pro-tonema (pr, pr)produced onmoist earth, giv-ing r i s e to agametoph>-te (m)and p
. Plants and their uses; an introduction to botany . Fig. 345.—^Horned-livcrwort. Young sporophyte {sg, sg) showing the be-ginnings of a columella (c, c) and spores (s). L, L, calyptra, ^ja.(Hofmeister.) Fig. 346.—Peat moss (Sphagnum acutifnlium. Peat moss Family, Sphagna-cece). A, spore, highly magnified. C, spore (s) germinating in waterproducing a green liranched thread or prolonema (n, 7t) from whichbuds (pr, pr) arise and produce gametophytes. (Schimper.)—Plantcommon in bogs. Fig. 347. — Peatmoss. Flat pro-tonema (pr, pr)produced onmoist earth, giv-ing r i s e to agametoph>-te (m)and pseudo-roots(w),<-fa. (Schimp-er.). 524 LIFE-HISTORIES
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
