285 FERNS : B1UT1SS AND FOREIGN. 



Colysis Sp>ect>ivm, also the beautiful Cibotium Menziesii, were 

 ft nt to the Royal Gardens, Kew, from the Sandwich Islands by 

 Dr. Hillebrand, in 1863. 



68. CYHTOMIUM. 



1*. C. Fortunei, J. Sm. Fronds 1-1J foot long, pinnate ; 

 pinnas lanceolate, falcate, acuminate, 2-3 inches long, 

 1 inch wide, entire, the base oblique, the inferior 

 rounded, the superior truncate and subauriculate. 

 Costa ebenous, upper surface dull, unreflecting. Sori 

 numerous. — Japan. 



Obs. — In Herbaria, specimens of this cannot readily be dis- 

 tinguished from 0. falcatum ; but on seeing living plants stand- 

 ing side by side, the difference is evident ; 0. Fortunei being a 

 smaller-growing plant, thinner in texture, and not lucid and 

 reflecting light, as 0. falcatum. 



70. ASPIDIUM. 



3*. A. polymorphum, Wall. ; Hook. Sp. Fil. 4, p. 54 (exclud. 

 syn.). — India, Ceylon. 



3**. A. Barteri, /. Sm. Vernation erect. Fronds pinnate, 

 1-2 feet high ; pinnse linear-lanceolate, 6-7 inches 

 long, 1-1^ broad ; the lower pair sometimes binate, 

 or auriculated on the lower margin. Sori regularly 

 biserial between the primary veins. Indusium small, 

 fugaceous. Aspidium polymorphum, Wall, ac- 

 cording to Hook. Sp. Fil. 4, p. 54. — West Africa, 

 Fernando Po. 



Obs. — This is quite distinct from the preceding species. 

 In A. Barteri the sari are perfectly serial, whereas in A. poly* 

 morplium the sori are scattered. 



74. POLYSTICHUM. 



6*. P. lepidoeaulon, J. Sm. Aspidium lepidoeaulon, Booh. 

 Sp. Fil. 4, t. 217.— Japan. 



