ASPIDIE^. Ixxzi. 



§ 19 ASFISIE^. 



(a) Indusia euaullate behind the son, on the contracted 

 incurved pinnules. 



113. OHOCLEA, Linntsus, Phil. Sot. 156, (reduct.) 



Angioptekis, Mitchell, (non SoffmannJ i Caltpteeium, Senihardi; 

 KlEDLEA, Mirbel, in part; Bagiofiebis, Fresl. 



Som indnsiate, few, large, globose, approximate and at length 

 confluent beneath the conniving margin of the rouudieh eeasile 

 bacciform pinnules ; the receptacles medial, elevated. Indusium 

 (special) a cucullate reticulated membrane placed behind each 

 sorus. Veins (sterile) reticulated ; the venules forming irregular 

 hexagonoid areoles ; or (fertile) simple, direct, free. 



Fronds dissimilar, the sterile pinnato-pinnatifid, the fertile 



bi-pinnate ; the pinnules contracted incurved, sub-globose, or 



bacciform. Bhizome creeping. — A very elegant and distinct 



genus, which we think Mr. Smith correctly refers to the AspL 



diece, though the nature of the special indusia, is not easily made 



out. Sagiopteris of Fresl, is said to have the venules of the 



sterile frond forked or simple, and free. There is probably some 



mistake, although the figures of Schkuhr and Presl, have not 



been to us satisfactorily explained. 



Ex. ; 0. sensibilis, lAn, | ? 0. augescens, Lk. 



? O. obtusilobata, Schkr, \ 



(b) Indusia orbicular, peltately affixed. 

 * Veins reticulated, with free included veinlets. 



114. ASPIDIUM, SwaHz, Schrad. Jowrn. 1800, ii,, 4, 29 

 (reduct.) : Sohott, Gen. Ml. (t. 4.) 



Bathmiuu, Freal: Link; Peoeebea, Fresl; Podopeltis, F4e ; Poly- 

 pODii sp., Auct. ; TECTAEliB 8p., Cavcmilles ; Phtmatodis sp.. Pre*/; 

 Deyjtaei^ sp.. Fee. 



Sori indusiate, rotundate ; the receptacles compital i.e. pro- 

 duced on the points where several veins join, or medial, more 

 rarely terminal. Indusium orbicular peltate. Veins picnate, 



[April, 1857.] 2 



