Archive image from page 145 of Dansk botanisk arkiv (1913-1981). Dansk botanisk arkiv danskbotaniskark03dans Year: 1913-1981 mmp- n wwmm- Fig. 143. Peyssonnelia Boergesenii nov. spec. View of two hypothalli, loo- sened from the substratum, a. (No. 1442) young hypothallus. principal axis not yet differentiated, b. old hvpothallus with distinct principal axis. (No. 154611). (210:1). hypothallus is not soluted; the cells of the principal axis increase simply in size. The apical cells is long and as high as or less high than the cells of the basal layer (Fig. 144)') and in this respect P. Boe
Archive image from page 145 of Dansk botanisk arkiv (1913-1981). Dansk botanisk arkiv danskbotaniskark03dans Year: 1913-1981 mmp- n wwmm- Fig. 143. Peyssonnelia Boergesenii nov. spec. View of two hypothalli, loo- sened from the substratum, a. (No. 1442) young hypothallus. principal axis not yet differentiated, b. old hvpothallus with distinct principal axis. (No. 154611). (210:1). hypothallus is not soluted; the cells of the principal axis increase simply in size. The apical cells is long and as high as or less high than the cells of the basal layer (Fig. 144)') and in this respect P. Boerge- senii differs from P. Nordstediii that has a high, short apical cell, like Fig. 140. The perithallus (Fig. 145) consists of a lower part of almost square cells, high d=40//, on which follows an upper part with 1) The section after which this figure was made, did not quite satisfy me; I fear that it is a section throug a margin no longer in a grow- ing state, but I could get no better for the margin of the alga was very much broken off. This section shows, however, that the apical cell is not a high, short one.
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