HISTORY OF INTRODUCTION OF EXOTIC FERNS. 33 



in British Guiana, and also on the banks of the 

 Orinoco, Rio Negro, and Yapura rivers. Several 

 other species of Schizsea are likewise worthy of a place 

 in our gardens, such as the pretty Schizcea pectinata 

 of the Cape of Good Hope, and Schizcea dichotomy, 

 which is found not only in Guiana and Venezuela, but 

 widely dispersed through the Pacific islands as far 

 south as New Zealand, occurring also in Java, Mysore, 

 the Mauritius, and other parts of the Eastern hemi- 

 sphere. Allied to these, also, are the two Brazilian 

 species of Ooptophyllum described by Dr. Gardner, 

 and likewise the Trochopteris elegans of the same 

 author, all of which some pteridologists include under 

 the genus Anemia, and perhaps rightly so with respect 

 to the former, for they have the same relationship 

 with true Anemia that Osmunda cinnamomea has with 

 0. regalis, their barren and fertile fronds being dis- 

 tinct. Both species are found in the province of 

 Goyaz ; one being named 0. millefolium and the other 

 C. buniifolium, from the general resemblance in the 

 divisions of their barren fronds to the leaves of 

 Achillea millefolium and Bunium. The Trochopteris 

 elegans is an exceedingly curious little Fern, with flat, 

 radiating fronds of a somewhat spathulate form but 

 more or less five-lobed, the two lower lobes being 

 deeper and bearing the sporangia, the entire plant 

 resembling a rosette, and growing on rocks like a 

 lichen. Dr. Gardner found it on the Serra de Nativi- 

 dad, in the province of Goyaz. Amongst other Bra- 

 zilian Ferns worth being looked after, I may mention 

 two species of Antigramme A. Brasiliense and A. 

 Douglassii, the former having oblong-lanceolate fronds 

 about a span long, tapering downward to a short 



