246 
FERNS : BRITISH AND FOREIGN. 
134. TRICHOPTERIS, Presl. 
Vernation fasciculate, erect, arborescent. Fronds bipinnate, 
4—6 feet 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 
Pros. t. 37. — Brazil. 
135. LOPHOSORIA, Presl. 
Vernation fasciculate, erect, arborescent, densely criniferous. 
Fronds tripinnatifid, 3-5 feet long, glaucous beneath. Veins 
