. Mosses with hand-lens and microscope : a non-technical hand-book of the more common mosses of the northeastern United States. ome species of Hygrohypnum and Limpricht and Brotherus put Hypnum Novte-Caesarea Austin in this genus, but in general the alar cells of Raphidostegium aremore strongly developed, the costa is shorter or wanting, and the operculumrostrate. Certain Brachytbecie^e, such as B. plumosum or Eurhynchiuni rusciforme havea similar habitat and appearance, but are easily distinguished by the acute leaves,strong single costa and rough seta. Alar cells large and conspicuous, clear
. Mosses with hand-lens and microscope : a non-technical hand-book of the more common mosses of the northeastern United States. ome species of Hygrohypnum and Limpricht and Brotherus put Hypnum Novte-Caesarea Austin in this genus, but in general the alar cells of Raphidostegium aremore strongly developed, the costa is shorter or wanting, and the operculumrostrate. Certain Brachytbecie^e, such as B. plumosum or Eurhynchiuni rusciforme havea similar habitat and appearance, but are easily distinguished by the acute leaves,strong single costa and rough seta. Alar cells large and conspicuous, clear, hyaline or colored, forming distinct decurrcntauricles; outer layer of stem cells much enlarged. (See Fig. 161) 2. Alar cells thick-walled, less distinctly inflated, granulose to subopaque, often colored;outer layer of steiTi cells not enlarged 3. Alar cells hyaline and thin-walled ; costa usually reaching the middle iif leaf; dioicous. ochraceum. Alar cells usually colored and thick-walled, except the outer row or two, which are usually thin-walled and often hyaline; costa double, short and faint; monoicous . PLATE Hygro/iy/>riiim oi/iraieiim (From hvy. Eur.) 5-15. Leaves, aa, 150. Apices of leaves. leaf. (15 and 150 are forms rare or wanting with us.) 344 MOSSES WITH HAND-LENS AND MICROSCOPE 3. Leaves serrulate all aroLiiid montanum. Leaves entire or denticulate at apex onlv 4. 4. Leaves entire; costa single, often , often split whenold, narrowed to a longer or shorter oblnse or siibohiiisc iicuwiuali(i)i,enx\ve. e\ce\^t JLt
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Keywords: ., bookcentury1900, bookdecade1900, bookidmosseswithha, bookyear1903
