246 



FERNS : BRITISH AND FOREIGN. 



134. TRICHOPTEBIS, Presl 



Vernation fasciculate, erect, arborescent. Fronds bipinnate, 

 4_6 f ee t long, smooth, stipes articulated with the axis ; pinnae 

 distant ; pinnules lanceolate, coriaceous, articulated with the 

 rachis. Veins pinnately forked; venules free, their apices 

 clavate. Sori medial, criniferous, oblong, laterally contiguous 



Genus 134. Fertile pinna, natural size; portion of ditto enlarged. No. 1. 



and confluent, forming a transverse row. Receptacles scarcely 

 elevated. Indusium absent. 



1. T. excelsa, Presl. Alsophila excelsa, Mart. Ic. Crypt. 

 Bras. t. 37. Brazil. 



135. LOPHOSOBIA, Presl. 



Vernation fasciculate, erect, arborescent, densely criniferous. 

 Fronds tripinnatifid, 3-5 feet long, glaucous beneath. Veins 



