240 



PERNS I BRITISH AND FOREIGN. 



1. C. Schiedei, ScUacU. ; Hook. Sp. Fil t. 30 A ; HooJe. Gen. 



Fil. t. 25; Lowe's Ferns, 8, t. 35. Mexico. 



2. C. Barometz, /. 8m. Gen. of Ferns. Polypodium Barometz, 



Lour. Cibotiuin glaucescens, Kunze, Fil. t, 31. 

 Cibotium Cumingi, Kunze. China. 



3. C. Menziesii, Hook. Sp. Fil. t. 29 C. Sandwich Islands. 



129. THYRSOPTERIS, Kunze. 



Vernation fasciculate, arborescent. Fronds decompound- 

 multifid, the fertile portion contracted. Sort paniculate. Veins 

 pinnate; venules free. Accessory and special indusia equal, 



Genus 12Q. Portion of fertile pinna. No. 1. 



uniform, constituting a calyciform cyst, including sessile, com- 

 pressed sporangia seated on an elevated, globose receptacle. 



1. T. elegans, Kunze, Fil t. 1 ; Hook. Gen. Fil. t. 44 A ; 

 Lowe's Ferns, 8, t. 34. Juan Fernandez. 



TKIBE XI. CYATHEJE. 



Sori round, intra-marginal. Receptacles elevated, globose or 

 columnar. Indusium calyciform, semi-caijciform or squamiform, 

 or altogether absent. 



