14 PATAGONIAN EXPEDITIONS I BOTANY. 



[Under such circumstances Dr. Dusen would eliminate B. tabulare from 

 the Patagonian flora and, following C. Christiansen, would adopt B. 

 magellanicum, as noted below. G. M.] 



B. MAGELLANICUM (Desv.) Mett. var. SETIGERA (Gaud.) C. Chr. 



Falkland Is. 



Add Macl., p. 132 : 



BLECHNUM CHILENSE (Kaulf.) Mett. 



Stipes angulatus, sulcatus, robustus, basi squamis angustis, brunneis 

 vestitus; rachis palaeaceo-squamosa, squamis caducis, in facie superiore 

 frons oblongo-lanceolata, pinnata, sterilis, pinnis lanceolatis vel lineari- 

 lanceolatis, subarctis, acutiusculis, indistincte arcuatis, basi truncato-sub- 

 cordatis, subtus ad costam paleaceo-squamosis, squamis caducis, superior- 

 ibus sessilibus, inferioribus subpedicellatis, marginibus saepe reflexis, 

 subcartilagineo-serrulatis, praesertim apicem versus, fertilis pinnis lineari- 

 bus, angustioribus, subtus ad costam paleaceo-squamosis, squamis cadu- 

 cis ; indusium laciniatum ; spori ovato-angulati, glabri. 



W. Patagonia, Chili; its northern section on both sides of the Cor- 

 dillera, W. Falkland. 



Description. Stipe robust, angulate, covered at the base with narrow 

 scales ; frond oblong-lanceolate or linear-lanceolate ; pinnae of the sterile 

 frond linear-lanceolate, acutish, truncate and subcordate at the base, with 

 reflexed margins being subcartilaginous and serrulate towards the end of 

 the pinnae ; pinnae of the sterile frond linear, narrower than those of the 

 fertile frond ; indusium laciniate ; spores ovate-angulate, glabrous. D. 



Correct Macl , p. 132 : 



B. MAGELLANICUM (DeSV.) Mett. 



Fronds oblong, pinnate ; sterile pinnae sessile, adnate, apically subde- 

 current, coriaceous, lanceolate, entire, marginally punctate, subacuminate, 

 glabrous, discolored ; pinnae of fertile fronds linear, obtuse, indusium fim- 

 briate, scarious, broad, with oval spores which are glabrous, smooth, or 

 scarcely wrinkled. 



N. Patagonia ; W. Magellan, W. Patagonia, in the region of evergreen 

 beeches. Lago Nahuel-huapi. D. 



Add Macl., p. 132: 



