. The microscope and its revelations. FIG. 504. — Structure of frond of Marchan-tia polymorpTia : A, portion seen from;; a a, lozenge-shaped divisions;, stomates m the centre or the lozenges;c, c, greenish bands separating thelozenges. B, vertical section of the frond, atmosphere, the degree of munication with the showing a, a, the dense layer of cellulartissue forming the floor or the air- externalthat commimicatjoll being < regulated - . chamber, d, ,7, the epidermal layer, I, b, by the limitation of the its roof ; r, c, its walls;/,/, loosecells in its interior
. The microscope and its revelations. FIG. 504. — Structure of frond of Marchan-tia polymorpTia : A, portion seen from;; a a, lozenge-shaped divisions;, stomates m the centre or the lozenges;c, c, greenish bands separating thelozenges. B, vertical section of the frond, atmosphere, the degree of munication with the showing a, a, the dense layer of cellulartissue forming the floor or the air- externalthat commimicatjoll being < regulated - . chamber, d, ,7, the epidermal layer, I, b, by the limitation of the its roof ; r, c, its walls;/,/, loosecells in its interior ;,/,«tomate divided per-pendicularly ; fe, rmgs of cells forming itswall ;/, cells, forming the obturator-ring, shall hereafter find that theleaves of the higher plants con-tain intercellular spaces, whichalso communicate with the ex-terior by stomates, but that the structure of these organs is far lesscomplex in them than in this humble liverwort. The frond of Marchantia usually bears upon its surface, as shownin fig. 503, a numb
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmicrosc, bookyear1901
