132 PATAGONIAN EXPEDITIONS: BOTANY. 



Species 20, chiefly trop. and s. temp. 



B. PINNA-MARINA (Poir.) Mitt. (Lomaria alpina Spr.) 



Rhizome slender, wide-creeping. Frond 15 cm. long, pinnate; the 

 pinnae 12 mm. long, 3 mm. broad, obtuse. Fertile frond longer than the 

 barren. 



(N. Zeal; Austral.; Kerguel. ; Tristan; Brazil); Magellan; Fuegia to 

 Cape Horn ; Falklands ; S. Patagonia (by Hatcher). 



B. TABULARE (Thun.) Kuhn. (Lomaria magellanica Desv.) 



Stout, 30-60 cm. high. Barren frond ovate, with small pinnae. Fertile 

 pinnae linear, close. Often shortly treelike, the stem covered with linear- 

 sagittate scales. Indusium fimbriated. 



(S. Afr., Mascarenes ; Tristan) ; W. Indies to Fuegia. Patagonia, at 

 Puerto Bueno. 



ASPLENIUM Linn. 



Sori linear to oblong, with indusia of the same shape, oblique and 

 opening towards the midnerve. 

 Species 350, widely distributed. 



A. MAGELLANICUM Kaulf. 



Stems tufted, wiry, ebeneous below, 8 cm. Frond deltoid, pinnate, and 

 the lower pinnae pinnate, and twice pinnately divided, with incised-serrate 

 segments.. Sori copious, at length covering all the surface. 



Magellan; Fuegia to Cape Horn; S. Patagonia (by Hatcher). 



A. MULTIFIDUM Brack. 



Stout. Frond ample, to 60 cm. across, subdeltoid, 4 times pinnate. 

 Ultimate segments oblong-spatulate, toothed. Sori marginal, i to each 

 division. 



S. Fuegia (allied forms in S. Afr., Austral., N. Zeal., and Hawaii). 



DRYOPTERIS Adans. 1763. Shield-ferns. 

 (Aspidwm Sw. 1800. Poly stic hum Roth. 1797.) 

 Ferns with round sori, and peltate or cordate-reniform indusia, these 

 fixed by the sinus or center. Fertile and sterile fronds similar. Stipe 



