Archive image from page 337 of Dansk botanisk arkiv (1913-1981). Dansk botanisk arkiv danskbotaniskark03dans Year: 1913-1981 a Fig. 330. Dictyurus occidentalis J. Ag. transverse section of the thallus (comp. text). /), part of the plurisiphonous main axes, (a, about 10:1, h, 100:1). Fig. 331 a shows a part of a poorly developed shoot. In this the growmg-together of the summit of the filament in one branch- system with the filaments of another one above is clearly demonstra- ted. The cells in the net are about 60—70 [i thick and ll times as long. All the material gathered was sterile. I have

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Archive image from page 337 of Dansk botanisk arkiv (1913-1981). Dansk botanisk arkiv danskbotaniskark03dans Year: 1913-1981 a Fig. 330. Dictyurus occidentalis J. Ag. transverse section of the thallus (comp. text). /), part of the plurisiphonous main axes, (a, about 10:1, h, 100:1). Fig. 331 a shows a part of a poorly developed shoot. In this the growmg-together of the summit of the filament in one branch- system with the filaments of another one above is clearly demonstra- ted. The cells in the net are about 60—70 [i thick and ll times as long. All the material gathered was sterile. I have been able to compare my specimens with the original material of this species, collected atVeraCruzbyLiEBMAN and being preserved in the Botanical Museum, Copenhagen. The original spe- cimens belong to a very small and tiny form reaching a heighth of about 5 cm only. As mentioned above the axes of the sympodia, bearing the net, are, in the specimens I have examined, monosiphonous. I i i

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