. Mosses with hand-lens and microscope : a non-technical hand-book of the more common mosses of the northeastern United States. ss, and their appearance when dry is verydifferent from what it is when moist, as the leaves fold up against the stem tocheck the rapidity of evaporation. Some plants that do not produce a sporo-phyte end in a rosette of highly modified leaves. These are the male plants,and among the leaves of the rosette are numerous antheridia. The male plantsof many other dioicous mosses end in a similar rosette. Pogonatum is put with the Hair-caps by some authors, but is readilydi
. Mosses with hand-lens and microscope : a non-technical hand-book of the more common mosses of the northeastern United States. ss, and their appearance when dry is verydifferent from what it is when moist, as the leaves fold up against the stem tocheck the rapidity of evaporation. Some plants that do not produce a sporo-phyte end in a rosette of highly modified leaves. These are the male plants,and among the leaves of the rosette are numerous antheridia. The male plantsof many other dioicous mosses end in a similar rosette. Pogonatum is put with the Hair-caps by some authors, but is readilydistinguished by the cylindric capsules. In other respects there is very littleto distinguish the two genera. The leaves are large, not bordered, a sheathing membranous base andvery numerous straight lamella occupying the greater part of the width of theleaf above the base; upper cell of the lamella differentiated.* * In making cross-sections of tlie to deterniinc the nature of the terminal cells of the lameilx. theupper portion of the leaf shouUi he used, as these cells are not characteristic near the PLATE VII. (Siilliv. Icones.) Calharinea crhpa Fig. I. Plants natural size. Figs. 2 and 3. The same magnified. Figs. 4 and 5. Stem leaves. Figs. 8and 9 show the apex and basal cells, respectively, of the same. Figs. 10 and 11. Transverse sections of stemleaves. Figs. 6 and 7. Perigonial leaves. Fig. 19. Apex of the calyptra, with a hair from the san e shownat 20. The other figures are self-explanatory. 62 MOSSES WITH HAND-LENS AND MICROSCOPE Capsules prisimilic, four- lo six-an^lcii, often nearly cubical. Peristome teethgenerally sixty-four. KEY 1. Leaf margins serrate, not infolded 2. Leaf margins entire, thin and infolded 4. 2. Terminal cell of the lamellae fiat-topped or notched in section ; capsule cell of the lamell<p rounded ; capsule ovoid, obscurely 4-to6-angled, beak long gracile. 3. Capsules cubical, beak short commune. C
Size: 1165px × 2146px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidmosseswithha, bookyear1903
