. The structure and development of mosses and ferns (Archegoniatae). J? ^•^ rt V u oo X aj J3 U C •*^ ? •> (A •—< oo CO X T3 M rt (U ^ u < 3 G « a ?M rt CO e 4) 3 J3 •w C o bo O o t-i o Fi ato 3 •fH <u o ja o. -M CO o <+-? JS o o Ui lU rt m rtJ3 4) OJ j: .^ •M o J3 hn • •. 3 O. o 3 u ja u ?*-• c hn o J3 u 10 o • 1-1 »—( -M rt o C (U ro T) l-H 3 a bO cl rn G CO 3 o o hJ J3 C bO o. • ;-i CO •s Q rt a ^ s pq u • A •** CO 3 CO u i) ?M o «o V w ,__l ?^ rt ««* o llj o O. •kk CO o u C3 ^ J3O T) 1 B Tf 3 00 .rt O ??-* VJ IV. THE ANrilOCEROTES 155 that the divisions occur with a good dea
. The structure and development of mosses and ferns (Archegoniatae). J? ^•^ rt V u oo X aj J3 U C •*^ ? •> (A •—< oo CO X T3 M rt (U ^ u < 3 G « a ?M rt CO e 4) 3 J3 •w C o bo O o t-i o Fi ato 3 •fH <u o ja o. -M CO o <+-? JS o o Ui lU rt m rtJ3 4) OJ j: .^ •M o J3 hn • •. 3 O. o 3 u ja u ?*-• c hn o J3 u 10 o • 1-1 »—( -M rt o C (U ro T) l-H 3 a bO cl rn G CO 3 o o hJ J3 C bO o. • ;-i CO •s Q rt a ^ s pq u • A •** CO 3 CO u i) ?M o «o V w ,__l ?^ rt ««* o llj o O. •kk CO o u C3 ^ J3O T) 1 B Tf 3 00 .rt O ??-* VJ IV. THE ANrilOCEROTES 155 that the divisions occur with a good deal of regularity. Thearchesporial cells are divided by alternating vertical and trans-verse walls into four layers of cells instead of two, as in Antho-ceros, and these cells are arranged in regularly placed transverserows. At first the cells appear alike, but later there is a sei)ara-tion into sporogenous and sterile cells as in Anthoccros. Machprimary transverse row of cells beco
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Keywords: ., bookauthorcampbelldouglashought, bookcentury1900, bookdecade1910
